A planar perovskite solar cell (PSC) with p-i-n inverted structure was modeled and simulated to determine the power output characteristics under illumination. The performance of inverted PSC device was correlated to the thickness of the absorber layer, band alignment, and electrical properties of the hole transport materials (HTMs). Our simulation indicates that, with an optimized absorber layer thickness ∼300 nm, an efficiency of 18% can be achieved. This baseline device was further utilized to investigate the role of band offset between the HTM and absorber layer. Results show that the device efficiency can be improved to 24% when the work function of HTM is reduced to 0.1 eV lower than the valence band edge of perovskite. Parametric studies were carried out to compare the feasibility of five different HTMs including spiro-OMeTAD, Cu2O, CuSCN, NiO, and CuI. Among them, NiO is the most promising candidate with a theoretical efficiency limit up to 27%. This work would serve as a modeling frame to simulate and interpret the performance of inverted PSCs and suggest further device optimization strategies.
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ASME 2018 12th International Conference on Energy Sustainability collocated with the ASME 2018 Power Conference and the ASME 2018 Nuclear Forum
June 24–28, 2018
Lake Buena Vista, Florida, USA
Conference Sponsors:
- Advanced Energy Systems Division
- Solar Energy Division
ISBN:
978-0-7918-5141-8
PROCEEDINGS PAPER
Simulation of Inverted Perovskite Solar Cells
Jiawei Gong,
Jiawei Gong
Pennsylvania State University, Erie, PA
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Sumathy Krishnan
Sumathy Krishnan
North Dakota State University, Fargo, ND
Search for other works by this author on:
Jiawei Gong
Pennsylvania State University, Erie, PA
Sumathy Krishnan
North Dakota State University, Fargo, ND
Paper No:
ES2018-7227, V001T12A002; 7 pages
Published Online:
October 4, 2018
Citation
Gong, J, & Krishnan, S. "Simulation of Inverted Perovskite Solar Cells." Proceedings of the ASME 2018 12th International Conference on Energy Sustainability collocated with the ASME 2018 Power Conference and the ASME 2018 Nuclear Forum. ASME 2018 12th International Conference on Energy Sustainability. Lake Buena Vista, Florida, USA. June 24–28, 2018. V001T12A002. ASME. https://doi.org/10.1115/ES2018-7227
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