Bi- and tri-layer interfacial layers in perovskite material devices

摘要

Photovoltaic devices such as solar cells, hybrid solar cell-batteries, and other such devices may include an active layer disposed between two electrodes. The active layer may have perovskite material and other material such as mesoporous material, interfacial layers, thin-coat interfacial layers, and combinations thereof. The perovskite material may be photoactive. The perovskite material may be disposed between two or more other materials in the photovoltaic device. Inclusion of these materials in various arrangements within an active layer of a photovoltaic device may improve device performance. Other materials may be included to further improve device performance, such as, for example: additional perovskites, and additional interfacial layers.

主权项

1. A photovoltaic device comprising:
a first electrode; a second electrode; an active layer disposed at least partially between the first and second electrodes, the active layer comprising:
photoactive material comprising a perovskite material;a first interfacial layer disposed adjacent to and in contact with a second interfacial layer; anda third interfacial layer disposed adjacent to and in contact with the second interfacial layer, wherein the first interfacial layer and the third interfacial layer comprises a different material than the second interfacial layer.