NTU Singapore Develops Ultrathin Transparent Solar Cells for Urban Energy Generation
NTU Singapore researchers have created ultrathin perovskite solar cells, 10,000 times thinner than human hair, achieving high power conversion efficiency. This innovation enables integration into windows and façades, potentially transforming urban architecture into energy-generating surfaces.
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Researchers at Nanyang Technological University (NTU) have developed ultrathin perovskite solar cells, which are about 10,000 times thinner than a human hair and significantly more efficient than conventional solar cells. These devices can operate under indirect sunlight, making them suitable for urban environments like Singapore.
The solar cells can be incorporated into buildings and vehicles without altering their aesthetics, potentially generating hundreds of megawatt-hours of electricity annually from large glass facades. The manufacturing process utilizes thermal evaporation, allowing for large-scale production and reduced environmental impact.
Current efficiencies for opaque devices range from 7% to 12%, while semi-transparent cells achieve 7.6% efficiency. This advancement may enable buildings to become energy producers rather than consumers, addressing the growing demand for clean energy in dense urban areas.
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