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Bifacial Color‐Tunable Transparent Photovoltaics for Application as Building‐Integrated Photovoltaics
Author(s) -
Kim Sangho,
Yi Junsin,
Kim Joondong
Publication year - 2021
Publication title -
solar rrl
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.544
H-Index - 37
ISSN - 2367-198X
DOI - 10.1002/solr.202100162
Subject(s) - building integrated photovoltaics , photovoltaics , materials science , transmittance , optoelectronics , photovoltaic system , indium tin oxide , fabrication , optics , nanotechnology , thin film , electrical engineering , physics , engineering , medicine , alternative medicine , pathology
Transparent photovoltaics (TPVs) have attracted enormous attention due to their potential to be applied as building‐integrated photovoltaics (BIPV). Transparent and semitransparent photovoltaics have achieved a high level of efficiency, but there are still a number of issues that limit their application, such as their device size, lack of stability, and transmittance in the visible wavelength region. The excellent color implementation of a bifacial color‐tunable (BCT) TPV by tuning the indium tin oxide (ITO) thickness is demonstrated. The BCT TPV has a bifacial factor of 97.2% while maintaining an average visible transmittance (AVT) of 41.6%. The use of a 16 cm 2 large‐scale TPV device using a dry plasma fabrication process is also demonstrated. This dry process enables large‐scale device production and ensures long‐term device stability. The efficiency improvement with various background colors (blue 14%, red 25%, and white 35%) without any additional installation on the device is also confirmed. The BCT TPV is a promising candidate for BIPV applications due to its wide range of color tunability and excellent double‐sided photovoltaic operation, even under an indoor artificial light.