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Moth-eye Structured Polydimethylsiloxane Films for High-Efficiency Perovskite Solar Cells

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Authors
Kim, Min-cheol; Jang, Segeun; Choi, Jiwoo; Kang, Seong Min; Choi, Mansoo
Issue Date
2019-06-25
Publisher
Springer Link
Citation
Nano-Micro Letters. 11(1):53
Keywords
Polydimethylsiloxane flmsMoth-eyePhotolithographyPerovskite solar cellsPhotovoltaic
Abstract
Highlights
Moth-eye structured polydimethylsiloxane (PDMS) films with different sizes were fabricated to improve the efficiency of perovskite solar cells.
The PDMS with 300-nm moth-eye films significantly reduced light reflection at the front of the glass and therefore enhanced the solar cell efficiency of ~ 21%.
The PDMS with 1000-nm moth-eye films exhibited beautiful coloration.
Large-area polydimethylsiloxane (PDMS) films with variably sized moth-eye structures were fabricated to improve the efficiency of perovskite solar cells. An approach that incorporated photolithography, bilayer PDMS deposition and replication was used in the fabrication process. By simply attaching the moth-eye PDMS films to the transparent substrates of perovskite solar cells, the optical properties of the devices could be tuned by changing the size of the moth-eye structures. The device with 300-nm moth-eye PDMS films greatly enhanced power conversion efficiency of ~ 21% due to the antireflective effect of the moth-eye structure. Furthermore, beautiful coloration was observed on the 1000-nm moth-eye PDMS films through optical interference caused by the diffraction grating effect. Our results imply that moth-eye PDMS films can greatly enhance the efficiency of perovskite solar cells and building-integrated photovoltaics.
ISSN
2311-6706
Language
English
URI
http://hdl.handle.net/10371/156090
DOI
https://doi.org/10.1007/s40820-019-0284-y
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Mechanical Aerospace Engineering (기계항공공학부)Journal Papers (저널논문_기계항공공학부)
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