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Neutral-Colored Semitransparent Perovskite Solar Cells with Aperture Ratios Controlled via Laser Patterning

Authors
Lee, Hyong JoonPark, Jin KyoungLee, David SunghwanChoi, SeongyunHong, Seok YeongHeo, Jin HyuckIm, Sang Hyuk
Issue Date
28-3월-2022
Publisher
AMER CHEMICAL SOC
Keywords
organic-inorganic halide perovskite; BIPV; neutral color; semitransparent; aperture ratio; laser pattern
Citation
ACS APPLIED ENERGY MATERIALS, v.5, no.3, pp.3660 - 3667
Indexed
SCIE
SCOPUS
Journal Title
ACS APPLIED ENERGY MATERIALS
Volume
5
Number
3
Start Page
3660
End Page
3667
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/143120
DOI
10.1021/acsaem.2c00081
ISSN
2574-0962
Abstract
Aesthetics is just as important as efficiency when it 2 comes to designing solar cells for building-integrated photovoltaic applications such as solar windows, thus recently instigating a great interest in the development of neutral-colored semitransparent solar cells. Organic-inorganic halide perovskites (OIHPs) are of particular interest due to their unique properties as solar cell materials. Her; we demonstrate a laser patterning process of the OIHP film to control aperture ratios, which in turn can produce a neutral color for view. Through careful aperture control and by using indium tin oxide as the top electrode, we are able to fabricate neutral-colored semitransparent OIHP solar cells with high efficiency. Furthermore, we show that the involvement of a LiF Voltagi interlayer at the OIHP and electron transporting layer interface is necessary, since the LiF interlayer plays a bifunctional role of interface passivation and current flow rectification, in order to more closely simulate an ideal diode. As a result, we successfully demonstrate a high efficiency of 12.83% for a 2.00 cm(2) area and 9.30% for a 36.00 cm(2) area, while achieving an average visible range transmittance of 21.74%.
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