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Researchers at Shanghai University of Electric Power have designed and fabricated a "thermochromic solar cell" device for the first time in the world
.
The device combines the characteristics of photovoltaic power generation and thermochromic to make the application of smart photovoltaic glass possible
.
The study was recently published online in Nature Materials
.
Smart photovoltaic glass is developed on the basis of photovoltaic glass and is a green technology
with great application prospects.
It can not only sense the intensity of sunlight in the external environment, spontaneously change its color to achieve adjustable visible light transmittance, but also generate electric energy for indoor loads at the same time, with dual functions
.
Dr.
Lin Jia and his collaborators found that there is a class of pure inorganic perovskite materials in the hottest new solar cell material - halide perovskite, which can achieve stable reversible structural phase transition
.
Molecular dynamics simulations revealed the phase transition mechanism assisted by vacancies in the perovskite lattice
.
This phase change can lead to a huge change in its crystal structure, so that inorganic perovskites have two distinct states, one of which has a high visible light transmittance, ensuring that most of the visible light transmits as ordinary glass; The other state has strong light absorption, light transmittance is reduced, and photovoltaic glass can generate electricity
.
By selecting the appropriate device structure and electrode material, the environmental stability
of the entire device during repeated phase transition cycles can be maintained.
This type of smart photovoltaic glass provides an ideal solution for future smart buildings - it can control the transmittance of light and make reasonable use of the energy of sunlight, which is expected to be used as glass and roof of buildings, as well as mobile communication equipment, display elements, automotive glass and car roofs
.
Researchers at Shanghai University of Electric Power have designed and fabricated a "thermochromic solar cell" device for the first time in the world
.
The device combines the characteristics of photovoltaic power generation and thermochromic to make the application of smart photovoltaic glass possible
.
The study was recently published online in Nature Materials
.
Smart photovoltaic glass is developed on the basis of photovoltaic glass and is a green technology
with great application prospects.
It can not only sense the intensity of sunlight in the external environment, spontaneously change its color to achieve adjustable visible light transmittance, but also generate electric energy for indoor loads at the same time, with dual functions
.
Dr.
Lin Jia and his collaborators found that there is a class of pure inorganic perovskite materials in the hottest new solar cell material - halide perovskite, which can achieve stable reversible structural phase transition
.
Molecular dynamics simulations revealed the phase transition mechanism assisted by vacancies in the perovskite lattice
.
This phase change can lead to a huge change in its crystal structure, so that inorganic perovskites have two distinct states, one of which has a high visible light transmittance, ensuring that most of the visible light transmits as ordinary glass; The other state has strong light absorption, light transmittance is reduced, and photovoltaic glass can generate electricity
.
By selecting the appropriate device structure and electrode material, the environmental stability
of the entire device during repeated phase transition cycles can be maintained.
This type of smart photovoltaic glass provides an ideal solution for future smart buildings - it can control the transmittance of light and make reasonable use of the energy of sunlight, which is expected to be used as glass and roof of buildings, as well as mobile communication equipment, display elements, automotive glass and car roofs
.
