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Guideline for Optical Optimization of Planar Perovskite Solar Cells
Author(s) -
Koç Mehmet,
Soltanpoor Wiria,
Bektaş Gence,
Bolink Henk J.,
Yerci Selçuk
Publication year - 2019
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201900944
Subject(s) - materials science , photocurrent , perovskite (structure) , optoelectronics , photovoltaic system , tandem , planar , solar cell , guideline , perovskite solar cell , plasmonic solar cell , band gap , photovoltaics , engineering physics , polymer solar cell , chemical engineering , computer science , composite material , electrical engineering , medicine , computer graphics (images) , pathology , engineering
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 CH 3 NH 3 PbI 3 (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.