Application of Two-Dimensional MoSe2 Atomic Layers to the Lift-Off Process for Producing Light-Weight and Flexible Bifacial Cu(In, Ga)Se2 Solar Cells

The application of two-dimensional MoSe2 atomic layers to the lift-off process is proposed for the preparation of light-weight and flexible bifacial Cu­(In, Ga)­Se2 (CIGS) solar cells. The results show that CIGS solar cells are successfully peeled from a Mo rear contact when the c-axis of the MoSe2,...

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Published inACS applied energy materials Vol. 3; no. 10; pp. 9504 - 9508
Main Authors Nishimura, Takahito, Hamada, Naoto, Chantana, Jakapan, Mavlonov, Abdurashid, Kawano, Yu, Masuda, Taizo, Minemoto, Takashi
Format Journal Article
LanguageEnglish
Published American Chemical Society 26.10.2020
Subjects
layered growth
flexible
lift-off
two-dimensional material
CIGS
Cu(In, Ga)Se2
MoSe2
bifacial solar cell
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Summary:The application of two-dimensional MoSe2 atomic layers to the lift-off process is proposed for the preparation of light-weight and flexible bifacial Cu­(In, Ga)­Se2 (CIGS) solar cells. The results show that CIGS solar cells are successfully peeled from a Mo rear contact when the c-axis of the MoSe2, formed between the Mo and CIGS layers, is vertically oriented to the Mo surface. In this study, 11.5% efficient lift-off cells are fabricated, indicating a high-performance ratio of 95.0% compared with the 12.1% efficient substrate cells, thereby suggesting the usefulness of layered-grown MoSe2 for the lift-off procedure. Finally, by applying the lift-off process, light-weight and flexible bifacial CIGS solar cells utilizing thin Au and Sn-doped In2O3 back contacts are derived.
ISSN:2574-0962
2574-0962
DOI:10.1021/acsaem.0c01557