公开(公告)号：WO2021255468A1

公开(公告)日：2021-12-23

申请号：PCT/GB2021/051548

申请日：2021-06-17

Applicant: OXFORD PHOTOVOLTAICS LIMITED

Inventor： KIRNER, Simon ,  MIRANDA PEREZ, Laura ,  KOETSCHAU, Immo ,  SNAITH, Henry ,  CROSSLAND, Edward ,  CASE, Christopher ,  SHARP, Alan

IPC: H01L31/043 ,  H01L51/42 ,  H01L51/4206

Abstract: A multi-junction photovoltaic device comprising a layer of metal oxynitride between a first sub-cell and a second sub-cell is disclosed, the first sub-cell having a layer comprising a perovskite light absorber material. In addition, a method of manufacturing said multi-junction photovoltaic device is disclosed. The metal oxynitride is preferably titanium oxynitride. Advantageously, the device may be produced in a simple, fast, consistent and inexpensive manner, whilst the properties of the titanium oxynitride layer may be tuned to avoid the occurrence of local shunt paths and to reduce reflection losses.