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Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/16214

Title: Vacuum deposition of CsPbI_3 layers on textured Si for Perovskite/Si tandem solar cells
Authors: Hamada, Keitaro
Yonezawa, Kyosuke
Yamamoto, Kohei
Taima, Tetsuya
Hayase, Shuzi
Ooyagi, Noboru
Yamamoto, Yuzo
Ohdaira, Keisuke
Issue Date: 2019-02-22
Publisher: IOP Publishing
Magazine name: Japanese Journal of Applied Physics
Volume: 58
Number: SB
Start page: SBBF06-1
End page: SBBF06-5
DOI: 10.7567/1347-4065/aafb56
Abstract: We attempt the conformal deposition of CsPbI_3 layers on pyramidal-shaped textured crystalline Si (c-Si) surfaces, aiming at application to Perovskite/Si tandem solar cells. CsPbI_3 layers are deposited through vacuum evaporation on textured c-Si surfaces with various pyramid sizes. Conformal CsPbI_3 layers are formed on the texture c-Si, which is, in principle, difficult to be realized by conventional solution process. We also confirmed a reduction in the optical reflectance of CsPbI3/Si structures by ~10% (absolute) by using textured c-Si compared to the case of flat Si. A co-evaporation method can prevent the aggregation of CsI particles, which are seen when the films are formed by sequential evaporation. These results indicate the feasibility of Perovskite/c-Si tandem cells with textured c-Si, leading to low optical reflectivity and high photocurrent.
Rights: This is the author's version of the work. It is posted here by permission of The Japan Society of Applied Physics. Copyright (C) 2019 The Japan Society of Applied Physics. Keitaro Hamada, Kyosuke Yonezawa, Kohei Yamamoto, Tetsuya Taima, Shuzi Hayase, Noboru Ooyagi, Yuzo Yamamoto and Keisuke Ohdaira, Japanese Journal of Applied Physics, 58(SB), 2019, SBBF06-1-SBBF06-5. http://dx.doi.org/10.7567/1347-4065/aafb56
URI: http://hdl.handle.net/10119/16214
Material Type: author
Appears in Collections:c10-1. 雑誌掲載論文 (Journal Articles)

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