Journal
SOLAR ENERGY
Volume 123, Issue -, Pages 51-56Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.solener.2015.11.009
Keywords
Simulation; Perovskite; Planar heterojunction solar cells
Categories
Funding
- National Key Basic Research Program of China [2011CBA00706]
- National Natural Science Foundation of China [11204276, 61574129]
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Recently, organo-metal halide perovskites have attracted much attention of the scientific community relating to their successful application in the absorber layer of low-cost solar cells. However, enough is known about the material and device properties, to realize that much remains to be learned. In this study, a two-dimensional modeling of planar heterojunction perovskite solar cells was performed combining the optical and electrical responses to reveal the impact of the carrier diffusion length, the relative permittivity of absorber layer and the valence band offset of absorber/hole transport material (HTM). Simulation results presented a great dependence of power conversion efficiency (PCE) on the carrier diffusion length of perovskite layer. Meanwhile, to achieve high PCE, the frequency depended dielectric constant should not exceeded 40 and the double HTMs design was very effective to match the valence bands between the absorber and HTM. (C) 2015 Elsevier Ltd. All rights reserved.
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