Contact

Phone: 470-578-5140

Email: sdas2@kennesaw.edu

Office Location: Q 345

Office Hours:
Spring 24: M/W 4:00 - 5:00 pm (by appointment) and flexible online by appointment.

Publications

BOOKS/BOOK CHAPTERS

  1. S. Das, K. C. Mandal, and R. N. Bhattacharya, "Springer Series in Materials Science: Semiconductor Materials for Solar Photovoltaic Cells", Vol. 218, Chapter: Earth-Abundant Cu2ZnSn(S,Se)4 (CZTSSe) Solar Cells; ISBN: 978-3-319-20330-0, 2016.
  2. S. Das, W. Thain, and S. Hill, "Engineering Open Textbook: Laboratory Manual for Engineering Electronics”, GeorgiA LIbrary LEarning Online (GALILEO) Open Learning Materials, Board of Regents of the University System of Georgia (USG)” (2019). 
  3. S. Das, C. Chin, and S. Hill, "Engineering Open Textbook: Circuits I Lab Manual”, GeorgiA LIbrary LEarning Online (GALILEO) Open Learning Materials, Board of Regents of the University System of Georgia (USG)” (2021). 
  4. S. Das, T. Ashuri, J Khazaii, Y. Mahmoud, and Valmiki Sooklal, "Fundamentals of Renewable Energy”, (2023) - Currently in Progress. 

PEER REVIEWED PUBLICATIONS

  1. S. Das, "Performance Evaluation of CuBi2O4-based Thin Film Solar Cells with Non-toxic Oxide Electron and Hole Transport Materials", IEEE SoutheastCon, Orlando, FL, USA, pp. 744-748 (2023).
  2. S. Das, "Improved Efficiency of non-toxic Cu3BiS3 Thin Film Solar Cell Employing PCBM Electron Transport Layer," 2022 IEEE 49th Photovoltaics Specialists Conference (PVSC), Philadelphia, PA, USA, pp. 424-424 (2022).
  3. S. Das, "Design and Development of a Rooftop Photovoltaics Laboratory for Advanced Engineering Education", American Society of Engineering Education (ASEE) Annual Conference (2023).
  4. S. Das, C. Chin, and S. Hill, "Development of Open-Source Comprehensive Circuit Analysis Laboratory Instructional Resources for Improved Student Competence", American Society of Engineering Education (ASEE) Annual Conference (2022). 
  5. B. M. Diong, C. A. Chin, S. Das, A. Tekes, W. Thain, “Enhancing Engineering students’ troubleshooting skills”, American Society of Engineering Education (ASEE) Annual Conference (2021). 
  6. S. Inamdar, S. Chakravarty, Y. Shi, S. Das, “Improving Maximum Power Point Tracking Efficiency for Partially Shaded PV Arrays by Nested Zone Prediction via Machine Learning”, IEEE 47th Photovoltaic Specialists Conference (PVSC) (Jun 2020). DOI: 10.1109/PVSC45281.2020.9300747. 
  7. A. Beltran, S. Das, “Particle Swarm Optimization with Reducing Boundaries (PSO-RB) for Maximum Power Point Tracking of Partially Shaded PV Arrays”, IEEE 47th Photovoltaic Specialists Conference (PVSC) (Jun 2020). DOI: 10.1109/PVSC45281.2020.9300516.
  8. A. Beltran, C. Hughes, S. Das, “Improved Maximum Power Point Tracking of Partially Shaded PV Arrays Using Particle Swarm Optimization with Zone Initialization”, IEEE 46th Photovoltaic Specialists Conference (PVSC), Chicago, IL (Jun 2019). DOI: 10.1109/PVSC40753.2019.8980469.
  9. S. Das, A. Beltran, “High Efficiency non-toxic CuSbS2-based Heterojunction Solar Cell with TiO2 Electron Transport Layer”, IEEE 46th Photovoltaic Specialists Conference (PVSC), Chicago, IL (June 2019). DOI: 10.1109/PVSC40753.2019.8981380.
  10. C. Hughes, X. Ji, A. Beltran, S. Das, “Photovoltaic Maximum Power Point Tracking Algorithms Implemented via Low-cost Field Programmable Gate Arrays”, IEEE SoutheastCon, Huntsville, AL, (2019). 
  11. S. Das, “Development of Low-cost Remote Online Laboratory for Photovoltaic Cell and Module Characterization”, ASEE Annual Conference, Tampa, FL (2019).
  12. S. Das, E. Riefe, S. McWhorter, “Device Design and Photovoltaic Performance of Heterojunction Solar Cells Using Ultra-Thin Bi2S3 Photoabsorber”, 13th IEEE Nanotechnology Materials and Devices Conference (NMDC), Portland, OR (2018).
  13. S. Das, “Design and Implementation of MATLAB-Simulink Based Solar Cell Modeling and PV System Design Exercises for Advanced Student Learning”, ASEE Annual Conference, Energy Conversion and Conservation Division (ECCD), 2018.
  14. L. Lowder, M. Atiqullah, D. Colebeck, S. Das, M. A. Karim, A. Khalid, R. Singh, and T. Utschig, “Peer Observation: Improvement of Teaching Effectiveness through Class Participation at a Polytechnic University”, Journal of STEM Education, vol. 18 (2017).
  15. T. Utschig, S. Das, E. Farfan, V. Sooklal, “Managing Interdisciplinary Senior Design with Nuclear Applications”, ASEE Annual Conference, Nuclear Energy Division, 2017.
  16. S. Das, K. C. Mandal, and R. N. Bhattacharya, “Performance limiting factors of Cu2ZnSn(SxSe1-x)4 solar cells prepared by thermal evaporation”, Solar Energy Materials and Solar Cells, vol. 144, pp. 347-351 (2016).
  17. S. Das, S. K. Chaudhuri, and K. C. Mandal, “Deep Level Studies in High-Resistive Gallium Phosphide Single Crystals,” ECS Journal of Solid State Science & Technology, vol. 5, pp. 3059-3063 (2016).
  18. S. Das, “Development of a Low-cost, Portable, and Programmable Solar Module to Facilitate Hands-on Experiments and Improve Student Learning”, ASEE Annual Conference, Energy Conversion and Conservation Division (ECCD), 2016.
  19. Lowder, J. Vandenbussche, D. R. Ferreira, A. Khalid, M. A. Karim, R. Singh, C. A. Chin, K. Acharya, D. Colebeck, J. Sweigart, M. M. Atiqullah, S. Das, and T. Yee, “Promoting Peer Observation of Teaching in Higher Education”, SoTL Commons Conference, Georgia Southern University, 2015 (Presentation only).
  20. S. Das, S. K. Chaudhuri, R. N. Bhattacharya, and K. C. Mandal, “Defect levels in Cu2ZnSn(S1-xSex)4 solar cells probed by current-mode deep level transient spectroscopy”, Applied Physics Letters, vol. 104, pp. 192106 (2014).
  21. S. Das, and K. C. Mandal, “Growth and characterization of kesterite Cu2ZnSn(SxSe1-x)4 crystals for photovoltaic applications”, Materials Research Bulletin, vol. 57, pp. 135-139 (2014).
  22. S. Das, and K. C. Mandal, “Cu2ZnSnSe4 photovoltaic absorber grown by vertical gradient freeze technique”, Japanese Journal of Applied Physics, vol. 52, pp. 125502 (2013).
  23. S. Das, R. M. Krishna, S. Ma, and K. C. Mandal, “Single phase polycrystalline Cu2ZnSnS4 grown by vertical gradient freeze technique”, Journal of Crystal Growth, vol. 381, pp. 148-152 (2013).
  24. S. Das, and K. C. Mandal, “Optical down-conversion in doped ZnSe: Tb3+ nanocrystals”, Nanoscale, vol. 5, pp. 913-915 (2013).
  25. S. Das, C. Frye, P. G. Muzykov, and K. C. Mandal, “Deposition and characterization of low-cost spray pyrolyzed Cu2ZnSnS4 (CZTS) thin-films for large-area high-efficiency heterojunction solar cells”, ECS Transactions, vol. 45, pp. 153-161 (2012).
  26. S. Das, and K. C. Mandal, “Optical downconversion in rare earth Tb3+ and Yb3+ doped CdS nanocrystals”, Materials Letters, vol. 66, pp. 46-49 (2012).
  27. K. C. Mandal, R. M. Krishna, P. G. Muzykov, S. Das, and T. S. Sudarshan, “Characterization of semi-insulating 4H silicon carbide for radiation detectors”, IEEE Transactions on Nuclear Science, vol. 58, pp. 1992-1999 (2011).
  28. P. G. Muzykov, R. Krishna, S. Das, T. Hayes, T. S. Sudarshan, and K. C. Mandal, “Characterization of 4H semi-insulating silicon carbide single crystals using electron beam induced current”, Materials Letters, vol. 65, pp. 911-914 (2011).
  29. K. C. Mandal, R. M. Krishna, T. C. Hayes, P. G. Muzykov, S. Das, T. S. Sudarshan, and S. Ma, “Layered GaTe crystals for radiation detectors”, IEEE Transactions on Nuclear Science, vol. 58, 1981-1986 (2011).
  30. S. Das, K. J. Zavalla, M. A. Mannan, and K, C Mandal, “Fabrication and characterization of low-cost, large-area spray deposited Cu2ZnSnS4 thin films for heterojunction solar cells,” MRS Proceedings, vol. 1538 (2013).
  31. K. C. Mandal, and S. Das, “Fabrication and characterization of improved p-GaTe/n-InSe heterojunction solar cells,” Photovoltaic Specialists Conference (PVSC), 38th IEEE, pp. 177-180 (2012).
  32. S. Das, and K. C. Mandal, “Comparison of Cu2ZnSnS4 thin film properties prepared by thermal evaporation of elemental metals and binary sulfide sources,” Photovoltaic Specialists Conference (PVSC), 38th IEEE, pp. 2674-2678 (2012).
  33. S. Das, and K. C. Mandal, “Fabrication of improved p-AgGaSe2/n-Si heterojunction solar cells on optimum quality thermally evaporated AgGaSe2 thin films,” MRS Proceedings, vol. 1323 (2011).
  34. S. Das, and K. C. Mandal, “Synthesis and characterization of rare earth (Tb3+ and Yb3+) doped CdS/ZnS core/shell nanocrystals for enhanced photovoltaic efficiency,” MRS Proceedings, vol. 1322 (2011).
  35. K. C. Mandal, S. Das, R. Krishna, P. G. Muzykov, S. Ma, and F. Zhao, “Surface passivation of p-GaTe layered crystals for improved p-GaTe/n-InSe heterojunction solar cells,” MRS Proceedings, vol. 1268 (2010).
  36. K. C. Mandal, P. G. Muzykov, R. M. Krishna, S. Das, and T. S. Sudarshan, “Characterization of 4H semi-insulating silicon carbide for radiation detector applications,” IEEE Nuclear Science Symposium Conference Record (NSS/MIC), 3725-3731 (2010).
  37. K. C. Mandal, R. Krishna, P. G. Muzykov, Z. Laney, S. Das, and T. S. Sudarshan, “Radiation detectors based on 4H semi-insulating silicon carbide,” SPIE Optical Engineering and Applications, 78050U-78050U-8 (2010).
  38. K. C. Mandal, T. Hayes, P. G. Muzykov, R. Krishna, S. Das, T. S. Sudarshan, and S. Ma, “Characterization of gallium telluride crystals grown from graphite crucible,” SPIE Optical Engineering and Applications, 78050Q-78050Q-10 (2010).
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