Article with transparent conductive oxide coating
AssigneeVitro Flat Glass LLC
InventorsJames W. McCamy, Zhixun Ma, Benjamin Kabagambe, Kwaku K. Koram, Cheng-Hung Hung, Gary J. Nelis
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Abstract
A solar cell includes a first substrate having a first surface and a second surface. An underlayer is located over the second surface. A first conductive layer is located over the underlayer. An overlayer is located over the first conductive layer. A semiconductor layer is located over the conductive oxide layer. A second conductive layer is located over the semiconductor layer. The first conductive layer includes a conductive oxide and at least one dopant selected from the group consisting of tungsten, molybdenum, niobium, and/or fluorine.
Claims22
An article, comprising:
- a first glass substrate having a first surface and a second surface;
- a first coating over the first surface;
- and
- a second coating over the second surface,
- wherein the second coating comprises:
- an underlayer located over the second surface;
- a first conductive layer over the underlayer;
- an overlayer over the first conductive layer;
- a semiconductor layer over the overlayer;
- and
- a second conductive layer over the semiconductor layer,
- wherein the first conductive layer comprises a first layer comprising tin oxide and tungsten and a second layer comprising tin oxide and fluorine.
An article, comprising:
- a first glass substrate having a first surface and a second surface;
- a first coating over the first surface;
- and
- a second coating over the second surface,
- wherein the second coating comprises:
- an underlayer located over the second surface;
- a first conductive layer over the underlayer;
- an overlayer over the first conductive layer;
- a semiconductor layer over the overlayer;
- and
- a second conductive layer over the semiconductor layer,
- wherein the first conductive layer comprises a first layer comprising tin oxide and tungsten and a second layer comprising tin oxide and fluorine,
- wherein the first layer is formed using a first tin precursor material and a tungsten precursor material, wherein the tungsten precursor material is tungsten tetrachloride.
A solar cell, comprising:
- a first substrate having a first surface and a second surface, wherein the first substrate comprises glass;
- a first coating over the first surface;
- and
- a second coating over the second surface,
- wherein the second coating comprises:
- an underlayer located over the second surface, wherein the underlayer comprises a bottom optical layer comprising an oxide of tin, zinc, silicon, aluminum, titanium, and/or mixtures thereof;
- a first conductive layer over the underlayer, wherein the first conductive layer comprises a first layer comprising tin oxide and tungsten and a second layer comprising tin oxide and fluorine;
- an overlayer over the first conductive layer, wherein the overlayer comprises a buffer layer comprising tin oxide and at least one of zinc, indium, gallium, magnesium, and nitrogen;
- a semiconductor layer over the overlayer;
- and
- a second conductive layer over the semiconductor layer, wherein the second conductive layer comprises a metallic layer.
Dependencies are inferred from the claim text.