Flexible smart photovoltaic foil for energy generation and conservation in buildings
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...
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| Main Authors: | , , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
2021
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/152956 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | 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. |
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