Oxford Photovoltaics Limited

Helmholtz-zentrum Berlin Für Materialien Und Energie Gmbh

Simon Kirner

Henry James Snaith

Laura Miranda Perez

Christopher Case

Sascha Hoch

Artjom Maljusch

Rutger Schlatmann

Immo Koetschau

Edward Crossland

Alan Sharp

Patrick Borowski

Ines Elkemann

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.

Multijunction photovoltaic devices with metal oxynitride layer

There is provided a multi junction photovoltaic device comprising a first sub-cell comprising a photoactive region comprising a layer of perovskite material, a second sub-cell comprising a photoactive silicon absorber. and an intermediate region disposed between and connecting the first sub-cell and the second sub-cell. The intermediate region comprises an interconnect layer, the interconnect layer comprising a two-phase material comprising elongate (i.e. filament like) silicon nanocrystals embedded in a silicon oxide matrix.

Multijunction photovoltaic device

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Oxfordshire, United Kingdom

Simon Kirner