New kesterite solar cell design promises 29.37% efficiency

Researchers in China and Malaysia simulated a new structure for copper zinc tin sulphide (CZTS) cells featuring a tungsten oxide buffer layer and a back surface field kesterite layer. A device simulated with this configuration achieved an open circuit voltage of 1. 2?V and a fill factor of 83. 37%. A group of researchers from China and Malaysia has proposed a new structure for copper zinc tin sulphide (CZTS) thin film solar cells in a bid to improve efficiency and use more environmentally-friendly materials. The team chose tungsten oxide (WO3) as a buffer layer based on its properties and performance ...

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