Pabna University of Science and Technology

Faculty Profile

Dr. Sheikh Rashel Al Ahmed

Professor

Department of Electrical, Electronic and Communication Engineering

Pabna University of Science and Technology

Pabna, Bangladesh

Contact Information

+8801742191314 (Personal)

+88 0258884 4903 (Office)

rashel@pust.ac.bd (Office)

skrashel.ru@gmail.com (Personal)

Total Publications: 62

Total Publications (62)

47
15

Biography (1)

  • Dr. Sheikh Rashel Al Ahmed is a Professor of the Department of Electrical, Electronic and Communication Engineering, Pabna University of Science and Technology, Pabna, Bangladesh. He received his Doctor of Engineering degree from Tokai University, Kanagawa, Japan under Japanese Government (Monbukagakusho/MEXT) Scholarship in 2017. Previously, he completed his B.Sc. and M.Sc. degrees in Applied Physics and Electronic Engineering from Rajshahi University, Bangladesh in 2007 and 2008, respectively. His research interests focus on Solid-State Physics, Thin-Film Technology, Semiconductor Devices, Solar Energy, Dielectrics, and Nanotechnology.

Education (3)

  • Bachelor of Science, (Four-Years), Dept. of Applied Physics and Electronic Engineering, Rajshahi University, Rajshahi, Bangladesh
  • Master of Science (Thesis Group), Dept. of Applied Physics and Electronic Engineering, Rajshahi University, Rajshahi, Bangladesh
  • Doctor of Engineering (D. Engg.), Dept. of Electrical and Electronic Engineering, Graduate School of Science and Technology, Tokai University, Japan, Successfully Awarded in 2017

Teaching Experience (4)

  • Professor, Dept. of Electrical, Electronic and Communication Engineering, Pabna University of Science and Technology, Pabna, Bangladesh (Period: 08/02/2023 to present)
  • Associate Professor, Dept. of Electrical, Electronic and Communication Engineering, Pabna University of Science and Technology, Pabna, Bangladesh (Period: 18/08/2018 to 07/02/2023)
  • Assistant Professor, Dept. of Electronic and Telecommunication Engineering, Pabna University of Science and Technology, Pabna, Bangladesh (Period: 28/09/2013 to 17/08/2018)
  • Lecturer, Dept. of Electronic and Telecommunication Engineering, Pabna University of Science and Technology, Pabna, Bangladesh (Period: 01/01/2011 to 27/09/2013)

Administrative or Other Experience (10)

  • Dean, Faculty of Engineering and Technology, Pabna University of Science and Technology, Pabna (Period: 01/05/2024 to present)
  • Chairman, Dept. Electrical, Electronic and Communication Engineering, Faculty of Engineering and Technology, Pabna University of Science and Technology, Pabna (Period: 04/03/2024 to present)
  • Director, Institutional Quality Assurance Cell (IQAC), Pabna University of Science and Technology, Pabna ( 01/02/2024 to 29/02/2024)
  • Additional Director, Institutional Quality Assurance Cell (IQAC), Pabna University of Science and Technology, Pabna (01/07/2022 to 31/01/2024)
  • Reviewer: Applied Physics Letters, AIP; Japanese Journal of Applied Physics, IOP; Nano-Micro Letters, Springer Nature; Transactions on Electron Devices, IEEE; Indian Journal of Physics, IOP; Physica Scripta, IOP; Environmental Science and Pollution Research, Elsevier; Solar RRL, Physica Status Solidi (a) - applications and materials science, John Wiley & Sons Ltd; Solar Energy, Elsevier; Semiconductor Science and Technology, IOP Publishing; International Journal of Energy Research, John Wiley & Sons Ltd; Journal of Photochemistry & Photobiology, A: Chemistry, Elsevier B.V; Zeitschrift für Naturforschung A (A Journal of Physical Sciences), De Gruyter;
  • Program Committee Member, 2nd International Conference on Cloud, Big Data and IoT (CBIoT 2021), June 26~27, 2021, Sydney, Australia, https://itcse2021.org/cbiot/committee.html
  • Chairman, Dept. Electrical, Electronic and Communication Engineering, Faculty of Engineering and Technology, Pabna University of Science and Technology, Pabna (Period: 04/03/2018 to 03/03/2021)
  • Dean, Faculty of Engineering and Technology, Pabna University of Science and Technology, Pabna (Period: 11/09/2018 to 10/09/2020)
  • Doctoral Researcher (Japanese Government MEXT Scholar), Dept. of Electrical and Electronic Engineering, Graduate School of Science and Technology, Tokai University, Japan (Periode: 22/09/2014 to 21/09/2017)
  • Assistant Proctor, Proctor Office, Pabna University of Science and Technology, Pabna (Period: 16/01/2012 to 31/08/2014)

Research Interests (6)

  • Solid-State Devices
  • Thin-Film Technology
  • Semiconductor Devices
  • Solar Energy
  • Dielectric Materials
  • Nanotechnology.

Active Research Project (3)

  • 1. Fabrication of silicon nitride films at low temperature using solution process
  • 2. Development of high efficiency thin-film heterojunction solar cells
  • 3. Study of performance enhancement of charge trapping nonvolatile memories

Awards & Recognition (2)

  • Members: (1) General member, Bangladesh Nano Society, 2021. (2) The International Solar Energy Society (ISES), Wiesentalstr. 50, 79115 Freiburg, Germany, Duration: 2021 to 2022. (3) The Japan Society of Applied Physics (Membership Type: Regular, Membership number: 0093341: Tokyo, JP, Duration: 2015 to 2017. (4) The Electrochemical Society (Membership Type: Student Member, ECS ID: 367958, : NY, US, Duration: 2015 to 2016.
  • Japanese Government (Monbukagakusho) Scholarship awarded by The Ministry of Education, Culture, Sports, Science and Technology (MEXT) for pursuing doctoral degree in Japan. (Period: October, 2014 to September, 2017)

Journal Articles (47)

  • 2024: Md. Ferdous Rahman, Mahabur Rahman, Md. Faruk Hossain, Benjer Islam, Sheikh Rashel Al Ahmed, Ahmad Irfan, A Numerical Strategy for Achieving Efficiency Exceeding 32% with a Novel Lead-Free Dual-Absorber Solar Cell Using Ca3SbI3 and Sr3SbI3 Perovskites, Advanced Photonics Research, https://doi.org/10.1002/adpr.202400148
  • 2024: Md. Raton Ali, Tanvir Mahtab Khan, Nurjahan-Ara, Sheikh Rashel Al Ahmed, Numerical simulation to optimize the photovoltaic performances of Cu2ZnSnS4 solar cell with Cu2NiSnS4 as hole transport layer (Accepted)
  • 2024: A Numerical Strategy for Achieving Efficiency Exceeding 32% with a Novel Lead-Free Dual Absorber Solar Cell Using Ca3SbI3 and Sr3SbI3 Perovskites (Accepted)
  • 2024: Imon Hasan, Tanvir Mahtab Khana, Benjer Islam, Md. Ferdous Rahman, Sheikh Rashel Al Ahmed, A comprehensive study to evaluate performances of Cs3Sb2I9-based perovskite solar cell with Spiro-MeOTAD HTL using SCAPS-1D simulator, Materials Science and Engineering B 310 (2024) 117740. https://doi.org/10.1016/j.mseb.2024.117740
  • 2024: Tanvir Mahtab Khan, Benjer Islam, Sheikh Rashel Al Ahmed, Performance analysis and optimization of SnSe thin-film solar cell with Cu2O HTL through a combination of SCAPS-1D and machine learning approaches, Materials Today Communications, 41 (2024) 110490. https://doi.org/10.1016/j.mtcomm.2024.110490
  • 2024: Ayasha Siddeka, Tanvir Mahtab Khan, Md. Raton Ali, Adnan Hosen, Md. Ferdous Rahman, Sheikh Rashel Al Ahmed, Performance enhancement of SnS-based solar cell using WS2 ETL and MoO3 HTL, Phys. Status Solidi A 2024, 2400547. https://doi.org/10.1002/pssa.202400547
  • 2024: Tanvir Mahtab Khan, Okba Saidani and Sheikh Rashel Al Ahmed, Utilizing machine learning to enhance performance of thin-film solar cells based on Sb2(SxSe1−x)3: investigating the influence of material properties, RSC Adv., 2024,14, 27749-27763. DOI: https://doi.org/10.1039/D4RA03340J
  • 2024: Tanvir Mahtab Khan, Sheikh Rashel Al Ahmed, Investigating the Performance of FASnI3-Based Perovskite Solar Cells with Various Electron and Hole Transport Layers: Machine Learning Approach and SCAPS-1D Analysis, Advanced Theory and Simulations, 05 July 2024 (2400353), https://doi.org/10.1002/adts.202400353
  • 2024: Tanvir Mahtab Khan, Adnan Hosen, Okba Saidani, Sheikh Rashel Al Ahmed, Artificial neural network assisted numerical analysis on performance enhancement of Sb2(S,Se)3 solar cell with SnS as HTL, Materials Today Communications, Volume 40, August 2024, 109639, https://doi.org/10.1016/j.mtcomm.2024.109639
  • 2024: Benjer Islam, Adnan Hosen, Tanvir Mahtab Khan, Md. Ferdous Rahman, Md. Hafijur Rahman, Md. Saiful Islam, Sheikh Rashel Al Ahmed, Simulating the Effect of Inserting Sb2S3 as Hole Transport Layer on SnS-Based Thin-Film Solar Cells, J. Electron. Mater. (2024). https://doi.org/10.1007/s11664-024-11173-y
  • 2024: Naimur Rahman, Abu Bakkar Md. Ismail, Md. Dulal Haque, Sheikh Rashel Al Ahmed, Md. Hafijur Rahman, Ahmad Irfan, Aijaz Rasool Chaudhry, Md. Ferdous Rahman, Impact of CdTe BSF layer on enhancing the efficiency of MoSe2 solar cell. J Opt (2024). https://doi.org/10.1007/s12596-024-01855-5
  • 2024: Md. Ferdous Rahman, Mithun Chowdhury, Latha Marasamy , Mustafa K. A. Mohammed, Md. Dulal Haque, Sheikh Rashel Al Ahmed, Ahmad Irfan, Aijaz Rasool Chaudhry, Souraya Goumri-Said, Improving efficiency above 31% of CIGS solar cell with Sb2S3 as a new BSF: A numerical simulation approach by SCAPS-1D, RSC Advances, 2024,14, 1924-1938. DOI https://doi.org/10.1039/D3RA07893K
  • 2023: Sheikh Rashel Al Ahmed, Investigation on Performance Enhancement of Heterojunction SnS Thin-Film Solar Cell with Zn3P2 HTL and TiO2 ETL, Energy Fuels, Cite This: https://doi.org/10.1021/acs.energyfuels.3c03719
  • 2023: Md Ferdous Rahman, Md Kamrul Hasan, Mithun Chowdhury, Md Rasidul Islam, Md Hafijur Rahman, Md Atikur Rahman, Sheikh Rashel Al Ahmed, Abu Bakar Md Ismail, Mongi Amami, M. Khalid Hossain, Gamil A.A.M. Al-Haz, A qualitative Design and optimization of CIGS-based Solar Cells with Sn2S3 Back Surface Field: A plan for achieving 21.83% efficiency, Heliyon 9 (2023) e22866. DOI: https://doi.org/10.1016/j.heliyon.2023.e22866
  • 2023: Most. Marzia Khatun, Adnan Hosen, Sheikh Rashel Al Ahmed, Evaluating the performance of efficient Cu2NiSnS4 solar cell—A two stage theoretical attempt and comparison to experiments, Heliyon 9 (2023) e20603. https://doi.org/10.1016/j.heliyon.2023.e20603
  • 2023: Adnan Hosen, Sumaiya Yeasmin, KM Sayem Bin Rahmotullah, Md Ferdous Rahman, Sheikh Rashel Al Ahmed, Design and simulation of a highly efficient CuBi2O4 thin-film solar cell with hole transport layer, Optics & Laser Technology 169 (2024) 110073. https://doi.org/10.1016/j.optlastec.2023.110073
  • 2023: Jubair Al Mahmud, Md Ferdous Rahman, Abdul Kuddus, Md Hasan Ali, ATM Saiful Islam, Md Dulal Haque, Sheikh Rashel Al Ahmed, Muhammad Mushtaq, Abu Bakar Md Ismail, Design and analysis of a SnS2/WS2/V2O5 double-heterojunction toward high-performance photovoltaics, Energy Adv., 2023, Advance Article. https://doi.org/10.1039/D3YA00231D
  • 2023: Sheikh Rashel Al Ahmed, Structural and electrical behaviors of silicon nitride thin‑films deposited using spin coating technique, Applied Physics A (2023) 129:504. https://doi.org/10.1007/s00339-023-06784-x
  • 2023: Adnan Hosen, Md. Suruz Mian, and Sheikh Rashel Al Ahmed, Improving the Performance of Lead-Free FASnI3-Based Perovskite Solar Cell with Nb2O5 as an Electron Transport Layer, Advanced Theory and Simulations, 2023, 2200652. https://doi.org/10.1002/adts.202200652
  • 2022: Sheikh Rashel Al Ahmed, Mostafizur Rahaman, Adil Sunny, Sabrina Rahman, Md. Saiful Islam, Taha Abd El-Mohaymen Taha, Z.A. Alrowaili, Md. Suruz Mian, Enhancing the efficiency of Cu2Te thin-film solar cell with WS2 buffer layer: A simulation study, Optics & Laser Technology 159 (2023) 108942. https://doi.org/10.1016/j.optlastec.2022.108942
  • 2022: Md. Nur Hossain Riyad, Adil Sunny, Most. Marzia Khatun, Sabrina Rahman, Sheikh Rashel Al Ahmed,Performance evaluation of WS2 as buffer and Sb2S3 as hole transport layer in CZTS solar cell by numerical simulation, Engineering Reports, 2022;e12600. doi: 10.1002/eng2.12600
  • 2022: Adnan Hosen, Sabrina Rahman, Maroua Brella and Sheikh Rashel Al Ahmed, Impact of Hole Transport Layers in Inorganic Lead-Free B-γ-CsSnI3 Perovskite Solar Cells: A Numerical Analysis, Eng. Proc. 2022, 19(1), 41; https://doi.org/10.3390/ECP2022-12611.
  • 2022: Adnan Hosen, Sheikh Rashel Al Ahmed, Performance analysis of SnS solar cell with a hole transport layer based on experimentally extracted device parameters, Journal of Alloys and Compounds, Volume 909, 15 July 2022, 164823. https://doi.org/10.1016/j.jallcom.2022.164823
  • 2021: Most. Rifat Sultana, Benjer Islam, and Sheikh Rashel Al Ahmed, Modeling and Performance Analysis of Highly Efficient Copper Indium Gallium Selenide Solar Cell with Cu2O Hole Transport Layer Using Solar Cell Capacitance Simulator in One Dimension, Phys. Status Solidi A 2021, 2100512, https://doi.org/10.1002/pssa.202100512.
  • 2021: Sabrina Rahman, Sheikh Rashel Al Ahmed, Photovoltaic performance enhancement in CdTe thin-film heterojunction solar cell with Sb2S3 as hole transport layer, Solar Energy, Volume 230, December 2021, Pages 605-617, https://doi.org/10.1016/j.solener.2021.10.036.
  • 2021: Muhammad Shafiqul Islam, Sabrina Rahman, Adil Sunny, Md. Ashfaqul Haque, Md. Suruz Mian and Sheikh Rashel Al Ahmed, Numerical study of highly efficient tin-based perovskite solar cell with MoS2 hole transport layer, Zeitschrift für Naturforschung A, vol. 76, no. 11, 2021, pp. 1045-1059, https://doi.org/10.1515/zna-2021-0063.
  • 2021: Most. Marzia Khatun, Adil Sunny, Sheikh Rashel AlAhmed, Numerical investigation on performance improvement of WS2 thin-film solar cell with copper iodide as hole transport layer, Solar Energy 224 (2021) 956-965, https://doi.org/10.1016/j.solener.2021.06.062.
  • 2021: Adil Sunny, Sabrina Rahman, Most. Marzia Khatun, and Sheikh Rashel Al Ahmed, Numerical study of high performance HTL-free CH3NH3SnI3-based perovskite solar cell by SCAPS-1D, AIP Advances 11, 065102 (2021); https://doi.org/10.1063/5.0049646
  • 2021: A. Sunny, S.R.A. Ahmed, "Numerical Simulation and Performance Evaluation of Highly Efficient Sb2Se3 Solar Cell with Tin Sulfide as Hole Transport Layer", Phys. Status Solidi B 2021, 2000630, https://doi.org/10.1002/pssb.202000630.
  • 2021: A. Hosen, M.S. Mian, & S.R.A. Ahmed, Simulating the performance of a highly efficient CuBi2O4-based thin-film solar cell, SN Appl. Sci. 3, 544 (2021). https://doi.org/10.1007/s42452-021-04554-z
  • 2021: Sheikh Rashel Al Ahmed, Adil Sunny, Sabrina Rahman, Performance enhancement of Sb2Se3 solar cell using a back surface field layer: A numerical simulation approach, Solar Energy Materials and Solar Cells Volume 221, March 2021, 110919, https://doi.org/10.1016/j.solmat.2020.110919.
  • 2020: S. R. A. Ahmed, J. Ferdous, and M. S. Mian, “Development of a novel CdTe/ZnS/ZnTe heterojunction thin-film solar cells: a numerical approach,” IOP SciNotes 1 (2020) 024802, https://doi.org/10.1088/2633-1357/aba1f7.
  • 2020: J. Hossain, B. K. Mondal, S. K. Mostaque, S. R. A. Ahmed, and H. Shirai, “Optimization of multilayer anti-reflection coatings for efficient light management of PEDOT:PSS/c-Si heterojunction solar cells,” Mater. Res. Express 7 (2020) 015502, https://doi.org/10.1088/2053-1591/ab5ac7.
  • 2019: M. S. Sarker, M. F. Khatun, S. R. Al Ahmed and J. Hossain, “Optimization of multilayer antireflection coatings for improving performance of silicon solar cells,” 2019 International Conference on Computer, Communication, Chemical, Materials and Electronic Engineering (IC4ME2), Rajshahi, Bangladesh, 2019, pp. 1-4, doi: 10.1109/IC4ME247184.2019.9036677. (Electronic ISBN: 978-1-7281-3060-6, Print on Demand(PoD) ISBN: 978-1-7281-3061-3)
  • 2017: Sheikh Rashel Al Ahmed, Kaihei Kato, and Kiyoteru Kobayashi, “Hole trapping characteristics of silicon carbonitride (SiCN)-based charge trapping memories evaluated by the constant-current carrier injection method,” Materials Science in Semiconductor Processing, ISSN: 1369-8001, Nov. 2017, Vol. 70, pp. 265-271. DOI: http://dx.doi.org/10.1016/j.mssp.2017.01.012
  • 2017: Sheikh Rashel Al AHMED and Kiyoteru KOBAYASHI, “Extraction of Energy Distribution of Electrons Trapped in Silicon Carbonitride (SiCN) Charge Trapping Films,” IEICE TRANS. ELECTRON., ISSN: 0916-8524 (Print), ISSN: 1745-1353 (Online), July 2017, Vol. E100-C, No. 7, pp. 662-668. DOI: http://doi.org/10.1587/transele.E100.C.662
  • 2017: K. Kato, S. R. A. Ahmed, and K. Kobayashi, “Evaluation of Hole Trapping Characteristics in MONOS-Type Memories Using the Constant Current Carrier Injection Method,” ECS Transactions, ISSN: 1938-6737 (Print), ISSN: 1938-5862 (Online), Jan. 2017, Vol. 75, No. 32, pp. 73-82. DOI: http://doi.org/10.1149/07532.0073ecst
  • 2017: S. R. A. Ahmed, K. Kato, and K. Kobayashi, “Experimental Extraction of the Charge Centroid in SiCN-Based Charge Trapping Memories Using the Constant-Current Carrier Injection Method,” ECS Transactions, ISSN: 1938-6737 (Print), ISSN: 1938-5862 (Online), Jan. 2017, Vol. 75, No. 32, pp. 51-62. DOI: http://doi.org/10.1149/07532.0051ecst
  • 2016: Md. Ferdous Rahman, Sheikh Rashel Al Ahmed, Golam Saklayen, and Abu Bakar Md. Ismail, “Experimental Study on Silicon Nanocrystals Rich Lanthanum Fluoride Films for Future Electronic Devices,” Rajshahi University Journal of Science & Engineering, ISSN: 2309-0952 (Print), ISSN: 2408-8803 (Online), Nov. 2016, Vol. 44, pp. 61-66. DOI: http://dx.doi.org/10.3329/rujse.v44i0.30388
  • 2015: S. R. A. Ahmed, S. Naito, and K. Kobayashi, “Characterization of Low-Dielectric Constant Silicon Carbonitride (SiCN) Dielectric Films for Charge Trapping Nonvolatile Memories,” ECS Transactions, ISSN: 1938-6737 (Print), ISSN: 1938-5862 (Online), Oct. 2015, Vol. 69, No.3, pp. 99-109. DOI: http://doi.org/10.1149/06903.0099ecst
  • 2014: Sheikh Rashel Al Ahmed, Md. Ferdous Rahman, and Abu Bakar Md. Ismail, “Novel Silicon Nanocrystal-Embedded LaF3 Insulating Material for Metal-Insulator-Semiconductor-Type Non-Volatile Memory,” Advanced Science, Engineering and Medicine, ISSN: 2164-6627 (Print), ISSN: 2164-6635 (Online), June 2014, Vol. 6, No. 6, pp. 694-697. DOI: https://doi.org/10.1166/asem.2014.1555
  • 2014: S. M. Yahea Mahbub, Md. Rashedul Islam, and Sheikh Rashel Al Ahmed, “Evaluation of Different Tariff Rate offered by Mobile Telephone Operators Using Personal Social Network Model,” International Journal of Scientific & Engineering Research, Volume 5, Issue 5, May-2014, pp. 1339.
  • 2014: Sheikh Rashel Al Ahmed and Abu Bakar Md. Ismail, “Lanthanum Fluoride Charge Trapping Layer with Silicon Nanocrystals for Nonvolatile Memory Device Application,” American Journal of Nanoscience and Nanotechnology (Present name is American Journal of Nano Research and Applications), ISSN: 2575-3754 (Print), ISSN: 2575-3738 (Online), Jan. 2014, Vol. 2, No. 1, pp. 8-12. DOI: http://doi.org/10.11648/j.nano.20140201.12
  • 2013: S. R. AL AHMED, M E. ISLAM, AND A. B. M. ISMAIL, “ELECTRICAL PROPERTIES OF METAL-INSULATOR-SEMICONDUCTOR (MIS) DEVICES WITH SILICON NANOCRYSTALS (SI-NCS) EMBEDDED IN LANTHANUM FLUORIDE (LAF3) INSULATING LAYER,” Bangladesh Journal of Physics, ISSN: 1816-1081, Dec. 2013, Vol. 14, pp. 11-16. URL: http://bdphs.org/en/publications/journals/category/5-vol-14.html#
  • 2013: Md. Rashedul Islam, Md. Kislu Noman, Sheikh Rashel Al Ahmed, and Nur Hossain Khan, “An Overview of PAPR Reduction Technique for OFDM Signals by using Selective Mapping Technique (SLM)”, IJCSET, December 2013, Vol 3, Issue 12, pp. 439-442.
  • 2013: Sheikh Rashel Al Ahmed and Abu Bakar Md. Ismail, “Electronics Properties of Si Nanocrystals Mixed-LaF3 layer produced by a novel chemical bath deposition technique,” International Journal of Engineering Research & Technology, ISSN: 2278-0181, Sept. 2013, Vol. 2, No. 9, pp. 3170-3174. URL:http://www.ijert.org/view-pdf/5472/electronics-properties-of-si-nanocrystals-mixed-laf3-layer-produced-by-a-novel-chemical-bath-deposition-technique
  • 2011: Shaikh Rashel Al Ahmed, Sinthia Shabnam Mou, and Abu Bakar Md. Ismail, “Investigation on Lanthanum Fluoride insulating layer embedding silicon nanocrystals for metal-insulator-semiconductor (MIS) devices,” IEEE Proceedings of Argentine School of Micro-Nanoelectronics Technology and Applications (EAMTA), ISBN: 978-1-4577-1236-4 (Print), ISBN: 978-1-4577-1236-4 (Print on Demand), ISBN: 978-987-1620-47-0 (Electronic), Sept. 2011, pp. 1-5 (Peer-reviewed). URL: http://ieeexplore.ieee.org/document/6021273/

Conference Proceedings (15)

  • Numerical study on evaluating the performance of MoSe2-based thin-film solar cell with Sb2S3 hole transport layer by SCAPS-1D (Accepted)
  • Tanvir Mahtab Khan, Most. Marzia Khatun, Mst. Habiba Khatun, Adnan Hosen, and Sheikh Rashel Al Ahmed, Design and simulation of a highly efficient SnSe solar cell with CuI as an HTL by SCAPS-1D, 2023 IEEE International Conference on Telecommunications and Photonics (ICTP), Dhaka, Bangladesh, 2023, pp. 01-05, doi: 10.1109/ICTP60248.2023.10490748.
  • Adnan Hosen, Benjer Islam, Ayasha Siddeka, Md. Raton Ali, Md. Naem Islam, Sheikh Rashel Al Ahmed, Simulating the influence of inserting Sb2Se3 as hole transport layer on SnS-based thin-film solar cell, 2022 International Conference on Recent Progresses in Science, Engineering and Technology (ICRPSET), Faculty of Engineering, University of Rajshahi, Rajshahi-6205, Bangladesh, 26-27 December, 2022
  • Adnan Hosen, Sabrina Rahman, Maroua Brella and Sheikh Rashel Al Ahmed, Impact of Hole Transport Layers in Inorganic Lead-Free B-γ-CsSnI3 Perovskite Solar Cells: A Numerical Analysis, 1st International Electronic Conference on Processes: Processes System Innovation, 17–31 May 2022 (https://sciforum.net/event/ECP2022).
  • Md. Raghib Iftekhar, Md. Golam Rabbani, comAadnan Hossain, Md. Saiful Islam, Md. Suruz Mian, Sheikh Rashel Al Ahmed, Simulating the electrical charactersitics of a highly efficient Cs2AgBiBr6-based perovskite solar cell with NiOx holetransport layer, The 2nd International Conference on Advancement in Electrical and Electronic Engineering – (ICAEEE 2022), 24-26 February, 2022, DUET, Gazipur, Bangladesh.
  • A. Hosen, B. Islam, H. Khatun, M. S. Islam, K. M. S. B. Rahmotullah and S. R. Al Ahmed, "Device simulation of a highly efficient CZTS solar cell with CuS as hole transport layer," 2021 IEEE International Conference on Telecommunications and Photonics (ICTP), 2021, BUET, Dhaka, Bangladesh, pp. 1-5, doi: 10.1109/ICTP53732.2021.9744237.
  • K. M. Sayem Bin Rahmotullah, A. Hosen and S. R. Al Ahmed, "Enhanching memory performance in silicon nitride-based charge trapping memory device with Al2O3 blocking oxide and TiO2 capping layers," 2021 IEEE International Conference on Telecommunications and Photonics (ICTP), 2021, BUET, Dhaka, Bangladeshpp, 1-5, doi: 10.1109/ICTP53732.2021.9744242.
  • Most. Marzia Khatun, Sabrina Rahman, Adnan Hosen, Md. Nur Hossain Riyad, Adil Sunny, Sheikh Rashel Al Ahmed, Numerical simulation of highly-efficient lead free tin-based perovskite solar cell with Sb2S3 as novel hole transport layer, International Conference on Innovations in Energy Engineering & Cleaner Production IEECP21 (IEECP’21), July 29-30, 2021, Silicon Valley, San Francisco, CA – USA, https://dx.doi.org/10.6084/m9.figshare.14546793.
  • Sheikh Rashel Al Ahmed, Md. Ferdous Rahman and Abu Bakar Md. Ismail, Novel silicon nanocrystal-embedded LaF3 functional material for MIS memory device, 2013 Asian Pacific Conference on Chemical, Material and Metallurgical Engineering (APCCMME 2013), Paper ID: 53
  • Md. Ferdous Rahman, Sheikh Rashel Al Ahmed, Md Golam Saklayen, Abu Bakar Md. Ismail, Silicon Nanocrystal Rich Lanthanam Fluride Film for Future Electronic Device, International Conference on Computer, Communication, Chemical, Material and Electronic Engineering (IC4ME2), 2016, ISBN: 978-984-34-0889-1.
  • S. R. A. Ahmed, K. Kato, and K. Kobayashi, “Experimental Extraction of the Charge Centroid in SiCN-Based Charge Trapping Memories Using the Constant-Current Carrier Injection Method,” Extended Abstract of Pacific Rim Meeting on Electrochemical and Solid-State Science 2016 (The PRiME 2016 Meeting), Honolulu, HI,USA, 2016, MA2016-02(16):1455.
  • K. Kato, S. R. A. Ahmed, and K. Kobayashi,“Evaluation of Hole Trapping Characteristics in MONOS-Type Memories Using the Constant Current Carrier Injection Method,”Extended Abstract of Pacific Rim Meeting on Electrochemical and Solid-State Science 2016 (The PRiME 2016 Meeting), Honolulu, HI,USA, 2016, MA2016-02(16):1464.
  • S. R. A. Ahmed, S. Tanaka, and K. Kobayashi, “Hole trapping characteristics of SiCN-based charge trapping memories using a constant-current carrier injection method,” Proceedings of 7th International Symposium on Control of Semiconductor Interfaces (ISCSI-VII), Nagoya University, Nagoya, Japan, 2016, pp. 189-190.
  • S. R. A. Ahmed, S. Tanaka, and K. Kobayashi, “Hole Trapping Characteristics of Nitride-Based Charge Trapping Memories Using the Constant-Current Carrier Injection Method,” Extended Abstract of International Workshop on Dielectric Thin Films for Future Electron Devices-Science and Technology-(2015 IWDTF), Tokyo, Japan, 2015, pp. 27-28.
  • S. R. A. Ahmed, S. Naito, and K. Kobayashi, “Characterization of Low-Dielectric Constant Silicon Carbonitride (SiCN) Dielectric Films for Charge Trapping Nonvolatile Memories,” Extended Abstract of The 228th ECS Meeting, The Electrochemical Society, Arizona, USA, 2015, MA2015-02(16):773.

Conference and Seminar Attended (22)

  • Attended in the International Symposium on Quality Assurance in Engineering Education through Accreditation - III, May 11-12, 2023, Dhaka, Bangladesh.
  • Attended in The 4th IEEE International Conference on Telecommunications and Photonics (ICTP) 2021, December 22-24, 2021, BUET, Dhaka, Bangladesh.
  • Attended in a Webniar on Renewable Transformation Challenge: Towards a World Powered by Renewable Energy, International Solar Energy Society (ISES), 19 August, 2021.
  • Attended in the International Conference on Innovations in Energy Engineering & Cleaner Production IEECP21 (IEECP’21), July 29-30, 2021, Silicon Valley, San Francisco, CA – USA. (VIRTUAL)
  • Joined in the Global Renewable Energy Researchers Meet VIRTUAL May 7-8, 2021
  • Attended in the Future Energy Materials Conference 2021, March 22-23, 2021 (Virtual)
  • Session Chair, The 2nd International Conference on Robotics, Electrical and Signal Processing Techniques 2021 (ICREST 2021), https://icrest.aiub.edu/wp-content/uploads/2021/01/Detailed_PROGRAMME-SCHEDULE-ICREST-2021_Final.pdf
  • M. S. Sarker, M. F. Khatun, S. R. Al Ahmed and J. Hossain, “Optimization of multilayer antireflection coatings for improving performance of silicon solar cells,” 2019 International Conference on Computer, Communication, Chemical, Materials and Electronic Engineering (IC4ME2), Rajshahi, Bangladesh, 2019, pp. 1-4.
  • H. Mino, S. R. A. Ahmed, K. Kato, and K. Kobayashi, “Hole trapping characteristics of silicon carbonitride films for charge trapping memory applications,” The 78th JSAP Autumn Meeting 2017, The Japan Society of Applied Physics, Fukuoka, Japan, Sept. 5-8, 2017, 6a-PA9-8.
  • K. Kato, S. R. A. Ahmed, and K. Kobayashi,“Evaluation of Hole Trapping Characteristics in MONOS-Type Memories Using the Constant Current Carrier Injection Method,”Pacific Rim Meeting on Electrochemical and Solid-State Science 2016 (The PRiME 2016 Meeting), Honolulu, HI,USA, Oct. 2-7, 2016, D02-1464.
  • S. R. A. Ahmed, K. Kato, and K. Kobayashi, “Experimental Extraction of the Charge Centroid in SiCN-Based Charge Trapping Memories Using the Constant-Current Carrier Injection Method,” Pacific Rim Meeting on Electrochemical and Solid-State Science 2016 (The PRiME 2016 Meeting), Honolulu, HI,USA, Oct. 2-7, 2016, D02-1455.
  • S. R. A. Ahmed, S. Tanaka, and K. Kobayashi, “Hole trapping characteristics of SiCN-based charge trapping memories using a constant-current carrier injection method,” 7th International Symposium on Control of Semiconductor Interfaces (ISCSI-VII), Nagoya University, Nagoya, Japan, June 7-11, 2016, FE-PB-10.
  • Sheikh Rashel Al Ahmed, Shin Tanaka, and Kiyoteru Kobayashi, “Evaluation of hole trapping efficiency in SiCN-based charge trapping memories using the constant-current carrier injection method,” The 83rd Spring Meeting 2016, The Electrochemical Society of Japan, Osaka University, Osaka, Japan, March 29-31, 2016, 1Q24.
  • S. R. A. Ahmed, F. Uehara, and K. Kobayashi, “Charge retention characteristics of charge trapping nonvolatile memories with silicon carbonitride (SiCN) dielectrics (II),” The 63rd JSAP Spring Meeting 2016, The Japan Society of Applied Physics, Tokyo Institute of Technology, Tokyo, Japan, March 19-22, 2016, E 20a-S221-5.
  • S. R. A. Ahmed, S. Tanaka, and K. Kobayashi, “Hole Trapping Characteristics of Nitride-Based Charge Trapping Memories Using the Constant-Current Carrier Injection Method,” International Workshop on Dielectric Thin Films for Future Electron Devices-Science and Technology-(2015 IWDTF), Tokyo, Japan, Nov. 2-4, 2015, P8.
  • S. R. A. Ahmed, S. Naito, and K. Kobayashi, “Characterization of Low-Dielectric Constant Silicon Carbonitride (SiCN) Dielectric Films for Charge Trapping Nonvolatile Memories,” The 228th ECS Meeting, The Electrochemical Society, Arizona, USA, Oct. 11-15, 2015, D02-773.
  • S. R. A. Ahmed, S. Naito, H. Shibayama, J. Nakamura, and K. Kobayashi, “Charge retention characteristics of charge trapping nonvolatile memories with silicon carbonitride (SiCN) dielectrics,” The 62nd JSAP Spring Meeting 2015, The Japan Society of Applied Physics, Tokai University (Shonan Campus), Kanagawa, Japan, March 11-14, 2015, 12a-P12-3.
  • Shaikh Rashel Al Ahmed, Md. Hafizur Rahman, Sinthia Shabnam Mou, Md. Johurul Islam, and Abu Bakar Md. Ismail, “Investigation on Silicon Nanocrystals(Si-NCs)-Embedded Lanthanum Fluoride (LaF3) Insulating Layer for Metal-Insulator-Semiconductor(MIS) Devices,” National Conference on Physics for Development, Bangladesh Physical Society, BUET, Bangladesh, Feb. 10-11, 2011, P23.
  • Md. Hafizur Rahman, Shaikh Rashel Al Ahmed, Sinthia Shabnam Mou, and Abu Bakar Md. Ismail, “Investigation on the Influence of LaCl3 Concentration on the Structural, Compositional and Electrical Properties of Chemical-Bath Deposited LaF3 on Porous Silicon (PS),” National Conference on Physics for Development, Bangladesh Physical Society, BUET, Bangladesh, Feb. 10-11, 2011, SSIT-II-A 08.
  • Others:
  • (i) Attended in The 81th Symposium on Semiconductors and Integrated Circuits Technology, Tokyo University of Science, Tokyo, Aug. 24-25, 2017.
  • (ii) Attended in The 79th Symposium on Semiconductors and Integrated Circuits Technology,Waseda University, Tokyo, Japan, July 9-10, 2015.

Other's Faculty Members