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According to the website of the Australian National University (ANU), the university and the University of California, Berkeley have collaborated to develop a nanometamaterial with strange properties, which can emit light
in an unusual way when heated.
This achievement is expected to revolutionize the solar cell industry, bringing thermal photovoltaic cells that can convert radiant heat into electricity, collecting heat in the dark to generate electricity
.
Sergey Crook of ANU's Institute of Physics and Engineering said the new metamaterials overcome some technical hurdles and could help unlock the potential of thermal photovoltaic cells, which are expected to make them more efficient than traditional solar cells
.
Thermal photovoltaic cells generate electricity that does not require direct sunlight, but collects heat
in the form of infrared radiation from the surrounding environment.
They can recover heat radiated by the engine or generate electricity on demand in combination with burners
.
The new metamaterials have nanoscale microstructures, composed of gold and magnesium fluoride, which can emit radiation in specific directions and can change shape to emit special light, while conventional materials can only generate heat
in the form of all-round, extensive infrared light waves.
This material is therefore ideal
for emitters that match thermal photovoltaic cells.
The material's extraordinary performance comes from its novel physical properties, with its magnetic properties distributed in a hyperbolic shape, indicating that electromagnetic radiation propagates
in different directions.
Natural materials such as glass or crystal have a simple spherical or ellipsoidal radiation shape, while metamaterials have a very different radiation form due to the strong interaction
between the material and the photomagnetic element.
Crook predicted these surprising properties of the new material, and his team, in collaboration with the University of California, Berkeley, which specializes in making such materials, used cutting-edge technology to create the material, which is basically less than 12,000th
of the cross-section of a human hair.
The researchers say that if the distance between transmitter and receiver can reach the nanometer level, the efficiency of thermal photovoltaic cells based on this metamaterial can be further improved
.
In this construction, radiant heat is transferred between the two 10 times more efficiently than conventional materials
.
According to the website of the Australian National University (ANU), the university and the University of California, Berkeley have collaborated to develop a nanometamaterial with strange properties, which can emit light
in an unusual way when heated.
This achievement is expected to revolutionize the solar cell industry, bringing thermal photovoltaic cells that can convert radiant heat into electricity, collecting heat in the dark to generate electricity
.
Sergey Crook of ANU's Institute of Physics and Engineering said the new metamaterials overcome some technical hurdles and could help unlock the potential of thermal photovoltaic cells, which are expected to make them more efficient than traditional solar cells
.
Thermal photovoltaic cells generate electricity that does not require direct sunlight, but collects heat
in the form of infrared radiation from the surrounding environment.
They can recover heat radiated by the engine or generate electricity on demand in combination with burners
.
The new metamaterials have nanoscale microstructures, composed of gold and magnesium fluoride, which can emit radiation in specific directions and can change shape to emit special light, while conventional materials can only generate heat
in the form of all-round, extensive infrared light waves.
This material is therefore ideal
for emitters that match thermal photovoltaic cells.
The material's extraordinary performance comes from its novel physical properties, with its magnetic properties distributed in a hyperbolic shape, indicating that electromagnetic radiation propagates
in different directions.
Natural materials such as glass or crystal have a simple spherical or ellipsoidal radiation shape, while metamaterials have a very different radiation form due to the strong interaction
between the material and the photomagnetic element.
Crook predicted these surprising properties of the new material, and his team, in collaboration with the University of California, Berkeley, which specializes in making such materials, used cutting-edge technology to create the material, which is basically less than 12,000th
of the cross-section of a human hair.
The researchers say that if the distance between transmitter and receiver can reach the nanometer level, the efficiency of thermal photovoltaic cells based on this metamaterial can be further improved
.
In this construction, radiant heat is transferred between the two 10 times more efficiently than conventional materials
.
