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Numerical modeling of exciton impact in two crystalographic phases of the organo-lead halide perovskite (CH3NH3PbI3) solar cell
Abstract
To improve the power conversion efficiency of solar cells based on organo–lead halide perovskites, a detailed understanding of the device physics is fundamental. Here, a computational analysis of excitons impact is reported for these types of photocell. Numerical calculations based on the model, which take into account electronic charge carriers (electrons and holes), excitons and ions, have been carried out. The role of excitons in two crystallographic phases associated with different temperatures (80 K and 295 K) have been studied with the Saha relation, which clearly distinguishes a domination of free charge carriers or excitons. We have confirmed that excitons prevail in the orthorombic phase. Our work provides information about the photophysics of the lead halide perovskite, which allows for a better understanding of the operation of devices based on perovskite materials.
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- Copyright (2019 IOP Publishing Ltd)
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
SEMICONDUCTOR SCIENCE AND TECHNOLOGY
no. 34,
edition 3,
pages 035018 - 035018,
ISSN: 0268-1242 - Language:
- English
- Publication year:
- 2019
- Bibliographic description:
- Głowienka D., Szmytkowski J.: Numerical modeling of exciton impact in two crystalographic phases of the organo-lead halide perovskite (CH3NH3PbI3) solar cell// SEMICONDUCTOR SCIENCE AND TECHNOLOGY. -Vol. 34, iss. 3 (2019), s.035018-035018
- DOI:
- Digital Object Identifier (open in new tab) 10.1088/1361-6641/aafeef
- Verified by:
- Gdańsk University of Technology
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