THIN FILM PHOTOVOLTAIC MODULE WITH STABILIZED POLYMER

摘要

The present invention provides a photovoltaic device comprising metal and a poly(vinyl butyral) layer that incorporates a suitable amount of 1H-benzotriazole. When electrical bias is applied to the photovoltaic device, 1H-benzotriazole forms a barrier layer at the metal/poly(vinyl butyral) interface, which, for example, unexpectedly virtually eliminated the yellowing of poly(vinyl butyral) in photovoltaic devices comprising silver components.

主权项

1. A photovoltaic module, comprising:
a base substrate; a photovoltaic device disposed in contact with said base substrate, wherein said photovoltaic device comprises a metal component; a poly(vinyl butyral) layer disposed in contact with said photovoltaic device, wherein said poly(vinyl butyral) layer comprises 1H-benzotriazole or 1H-benzotriazole salt; and, a protective substrate disposed in contact with said poly(vinyl butyral) layer; wherein the yellowness index of a standard laminate produced with said poly(vinyl butyral) layer is about 61 or less.