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Seo, Kwanyong
The SEO Group
Research Interests
  • Flexible solar cell, transparent solar cell, PV-battery hybrid system, hetero-junction solar cell

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Neutral-Colored Transparent Crystalline Silicon Photovoltaics

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Title
Neutral-Colored Transparent Crystalline Silicon Photovoltaics
Author
Lee, KangminKim, NamwooKim, KwangjinUm, Han-DonJin, WonjooChoi, DeokjaePark, JeonghwanPark, Kyung JinLee, SeungwooSeo, Kwanyong
Issue Date
2020-01
Publisher
CELL PRESS
Citation
JOULE, v.4, no.1, pp.235 - 246
Abstract
Crystalline silicon (c-Si) is not used for developing transparent photovoltaics, owing to its opaque nature. Furthermore, adding optical transparency to a conventional c-Si wafer is one of the most challenging problems in this field. Here, we demonstrate the development of a neutral-colored transparent c-Si substrate using a 200-μm-thick c-Si wafer, which is known to be intrinsically opaque. Transparent c-Si substrates were fabricated by placing microhole-shaped light transmission windows on a bare c-Si wafer. These windows were designed to enable the transmission of all incident visible light through the substrate, resulting in a colorless substrate. A light absorption area was also designed on the wafer to efficiently absorb incident light. As a representative application, solar cells fabricated using the neutral-colored transparent c-Si substrate showed a power conversion efficiency of up to 12.2%. Therefore, our transparent c-Si solar cells present a unique opportunity to develop next-generation colorless transparent photovoltaics.
URI
https://scholarworks.unist.ac.kr/handle/201301/30654
URL
https://www.sciencedirect.com/science/article/pii/S2542435119305380?via%3Dihub
DOI
10.1016/j.joule.2019.11.008
ISSN
2542-4351
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