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Flexible smart photovoltaic foil for energy generation and conservation in buildings

Authors :
Yi Long
Shancheng Wang
Xin Li
Yun Meng
ChooiKim Lau
Yujie Ke
Hebing Hu
Junyou Yang
Gang Tan
School of Materials Science and Engineering
Campus for Research Excellence and Technological Enterprise (CREATE)
Publication Year :
2021

Abstract

Building-integrated solar cells not only generate electricity but also impact the envelope thermal characteristics, thus changing the micro-climate of buildings. Therefore, the collective effects of energy conservation and generation on buildings should be considered in one design. In this work, a smart photovoltaic window foil with near-infrared (NIR) modulation and low long-wavelength IR emissivity has been fabricated by combining organic perovskite and inorganic tungsten doped vanadium dioxide nanoparticles (W-VO2 NPs). The W-VO2 offers solar modulation and promotes extraction and transport of photogenerated charges, giving peak power conversion efficiency of 15.4% at 25 ℃ and 16.1% at 45 ℃ and average visible transmission of 25.5%, comparable to the best reported semitransparent perovskite solar cell with an additional favorable NIR modulation of 10.7%. This new strategy to integrate energy-saving functionality into photovoltaic foil initiates a new design rule for smart window development. Ministry of Education (MOE) National Research Foundation (NRF) This work was supported by National Research Foundation, Prime Minister’s Office, Singapore under its Campus for Research Excellence and Technological Enterprise (CREATE) program and Singapore Ministry of Education (MOE) Academic Research Fund Tier 1 RG103/19 and RG86/20. This work was co-financed by National Natural Science Foundation of China (Grant Nos. 51572098 and 51632006), National Basic Research Program of China (Grant No. 2013CB632500), Natural Science Foundation of Hubei Province (Grant No. 2015CFB432), Open Fund of State Key Laboratory of Advanced Techology (No. 2016-KF-5).

Details

Language :
English
Database :
OpenAIRE
Accession number :
edsair.doi.dedup.....73e8f6cf39085833692186eb9184a7ee