Guideline for Optical Optimization of Planar Perovskite Solar Cells

Date

2019-12-01

Author

Koc, Mehmet
Soltanpoor, Wiria
Bektas, Gence
Bolink, Henk J.
Yerci, Selçuk

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Organometallic halide perovskite solar cells have emerged as a versatile photovoltaic technology with soaring efficiencies. Planar configuration, in particular, has been a structure of choice thanks to its lower temperature processing, compatibility with tandem solar cells, and potential in commercialization. Despite all the breakthroughs in the field, the optical mechanisms leading to highly efficient perovskite solar cells lack profound insight. In this paper, a comprehensive guideline is introduced involving semianalytical equations for thickness optimization of the front and rear transport layers, perovskite, and transparent conductive oxides to improve the antireflection and light trapping properties, and therefore to maximize the photocurrent of perovskite solar cells. It is shown that a photocurrent enhancement above 2 mA cm(-2) can be achieved by altering-reducing or increasing-the thicknesses of the layers constituting a CH3NH3PbI3 (MAPI) type perovskite solar cell. The proposed guideline is tested against experiments as well as previously published experimental and simulation results for MAPI. Additionally, the provided guideline for various types of perovskites can be extended to other direct bandgap absorber-based solar cells in superstrate configuration.

Subject Keywords

Thickness optimization, Planar solar cells, Perovskite solar cells, Optimization guideline, Optical modeling, Light trapping, Antireflection

URI

https://hdl.handle.net/11511/31910

Journal

ADVANCED OPTICAL MATERIALS

DOI

https://doi.org/10.1002/adom.201900944

Collections

Graduate School of Natural and Applied Sciences, Article

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Citation Formats

M. Koc, W. Soltanpoor, G. Bektas, H. J. Bolink, and S. Yerci, “Guideline for Optical Optimization of Planar Perovskite Solar Cells,” ADVANCED OPTICAL MATERIALS, pp. 0–0, 2019, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/31910.