Heterojunction solar cell based on metal oxides achieves 23.3% efficiency

TU Delft scientists used plasma treatment with boron (PTB) to build heterojunction solar cells relying on a hole transport layer made of transition metal oxide (TMO) thin films. The device showed significant equilibrium between the quantity of defects and carrier transport and achieved remarkable efficiency levels. Scientists at Delft University of Technology in the Netherlands have fabricated an n-type silicon heterojunction (SHJ) solar cell based on a hole-transport layer (HTL) made with transition metal oxide (TMO) thin films. In the paper "Universal interface engineering method for applying ...

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