A Qualitative Theoretical Study of Inorganic HTM-Free RbGeI3 Based Perovskite Solar Cells Using SCAPS 1D as a Pathway Towards 3.601% Efficiency

  • Mary T. Ekwu Department of Physics, Airforce Institute of Technology, Kaduna, Nigeria
  • Eli Danladi Department of Physics, Federal University of Health Sciences, Otukpo, Benue State, Nigeria https://orcid.org/0000-0001-5109-4690
  • Nicholas N. Tasie Department of Physics, Rivers State University, Port Harcourt, Rivers State, Nigeria https://orcid.org/0000-0001-8398-2596
  • Idoko S. Haruna Centre for Satellite Technology Development-NASRDA, Abuja, Nigeria
  • Osaretin E. Okoro Centre for Satellite Technology Development-NASRDA, Abuja, Nigeria
  • Philibus M. Gyuk Department of Physics, Kaduna State University, Kaduna, Nigeria
  • Olayinka M. Jimoh Department of Physics, Federal University, Dutsin-Ma, Katsina State, Nigeria
  • Rita C. Obasi Centre for Satellite Technology Development-NASRDA, Abuja, Nigeria
DOI: https://doi.org/10.26565/2312-4334-2023-1-14
Keywords: perovskite solar cells, RbGeI3, SCAPS, layer thickness

Abstract

The presence of toxic lead in perovskite solar cells has hindered its commercial viability. In this present work, a mesoscopic inorganic lead-free perovskite solar cells based on RbGeI3 was proposed and implemented using SCAPs simulation tool. The effect of electron transport material (ETM) and Absorber thickness were analyzed. When the device was first simulated, its power conversion efficiency (PCE), fill factor (FF), current density (Jsc), and open circuit voltage (Voc) all reached values of 3.584% for PCE, 48.477% for FF, 25.385 mA/cm2 for Jsc, and 0.291 V for Voc. When the ETM and absorber are at their ideal thicknesses of 0.08 and 0.40, the development of efficiency becomes stable. Using the aforementioned parameters, the optimized PSC device produced the following values: PCE = 3.601%, Jsc = 25.386 mA/cm2, Voc = 0.291 V, and FF = 48.637%. The PCE improvement over the basic device without optimization is around 1.01 times. The findings indicate that perovskite solar cell lacking HTM has a substantial capacity to absorb photon energy and produce electrons. It has also shown how to create environmentally clean and economically viable technology.

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Citations

Investigation of the efficiency of non-toxic RbGeX3 (X = I, Br, Cl) perovskites as absorption layer in solar energy converters based on thickness dependency
Parmar Vandana B, Gajjar P N & Vora A M (2025) Physica Scripta
Crossref

RbGeI3/CuZnSnSSe/CuInGaSe/CdS tandem solar cell with improved performance and lowered cost
Selmane Naceur, Cheknane Ali, Gueddouda Kamal Mustapha, Boukhelkhal Feriha Afrah, Baydogan Nilgun, Helal Mohammed H. S. & Hilal Hikmat S. (2024) Journal of Materials Science: Materials in Electronics
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Integration of SCAPS-1D and density functional theory for the performance evaluation of RbGeI3-based perovskite solar cell
Ravidas Babban Kumar, Kumar Ajmera Raj, Praveen Azmeera, Agnihotri Suneet Kumar, Bhattarai Sagar, Pandey Rahul, Madan Jaya, Singh Shailendra, Hossain M. Khalid, Roy Mukesh Kumar & Samajdar Dip Prakash (2025) Journal of Physics and Chemistry of Solids
Crossref

Published
2023-03-02
Cited
How to Cite
Ekwu, M. T., Danladi, E., Tasie, N. N., Haruna, I. S., Okoro, O. E., Gyuk, P. M., Jimoh, O. M., & Obasi, R. C. (2023). A Qualitative Theoretical Study of Inorganic HTM-Free RbGeI3 Based Perovskite Solar Cells Using SCAPS 1D as a Pathway Towards 3.601% Efficiency. East European Journal of Physics, (1), 118-124. https://doi.org/10.26565/2312-4334-2023-1-14
Issue
No. 1 (2023): East European Journal of Physics
Section
Original Papers

Copyright (c) 2023 Mary T. Ekwu, Eli Danladi, Nicholas N. Tasie, Idoko S. Haruna, Osaretin E. Okoro, Philibus M. Gyuk, Olayinka M. Jimoh, Rita C. Obasi

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