公开(公告)号：US20230223205A1

公开(公告)日：2023-07-13

申请号：US18011059

申请日：2021-06-17

申请人： OXFORD PHOTOVOLTAICS LIMITED

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

IPC分类号： H01G9/20 ,  H10K39/15 ,  H10K71/60 ,  H01G9/00

CPC分类号： H01G9/2027 ,  H10K39/15 ,  H10K71/60 ,  H01G9/0029 ,  H01G9/2031 ,  H01G9/2059

摘要： 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.

公开(公告)号：US20210395279A1

公开(公告)日：2021-12-23

申请号：US17279146

申请日：2019-09-23

申请人： OXFORD PHOTOVOLTAICS LIMITED

发明人： Alice Elizabeth TAYLOR ,  Laura MIRANDA PEREZ

IPC分类号： C07F7/24 ,  B05D1/00 ,  C23C14/00 ,  C23C14/06 ,  C23C14/58 ,  H01L51/00

摘要： The present invention provides a method of forming a crystalline or polycrystalline layer of an organic-inorganic metal halide perovskite material comprising a three-dimensional crystal structure represented by the formula AMX 3, in which A represents an organic cation or a mixture of two or more different cations, at least one of which is an organic cation, M represents a divalent metal cation or a mixture of two or more different divalent metal cations, and X represents halide anions which are the same or different, the method comprising the steps of: (i) forming a first layer on the surface of a substrate, the first layer comprising an organic-inorganic metal halide perovskite material having a planar, layered two-dimensional crystal structure (ii) reacting the first layer with one or more organic halides to form the crystalline or polycrystalline layer comprising an organic-inorganic metal halide perovskite material having the formula AMX 3. Also provided is an optoelectronic or photovoltaic device including an active layer comprising an organic-inorganic metal halide perovskite material comprising a three-dimensional crystal structure represented by the formula AMX 3, wherein the material is obtainable using the above defined method.