Low-E coating having zinc aluminum oxide based layer doped with yttrium

摘要

Certain example embodiments of this invention relate to an electrode (e.g., front electrode) for use in a photovoltaic device or the like. In certain example embodiments, a transparent conductive oxide (TCO) based front electrode for use in a photovoltaic device is of or includes zinc oxide, or zinc aluminum oxide, doped with yttrium (Y). In certain example embodiments, the addition of the yttrium (Y) to the conductive zinc oxide or zinc aluminum oxide is advantageous in that potential conductivity loss of the electrode can be reduced or prevented. In other example embodiments, a low-E coating may include a layer of or including zinc oxide, or zinc aluminum oxide, doped with yttrium (Y).

主权项

1. A coated article comprising:
a low-E coating supported by a glass substrate; the low-E coating comprises at least one IR reflecting layer, the IR reflecting layer being provided over a dielectric layer comprising zinc aluminum oxide, the layer comprising zinc aluminum oxide being doped with yttrium, wherein the dielectric layer comprising zinc aluminum oxide comprises from about 0.05 to 0.20% yttrium (by wt. %), and wherein the layer comprising zinc aluminum oxide doped with yttrium comprises at least twice as much aluminum as yttrium by weight; and wherein the low-E coating has a sheet resistance of no more than about 10 ohms/square.