SOLAR CELL OR TANDEM SOLAR CELL AND METHOD OF FORMING SAME
First Claim
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1. A solar cell, comprising:
- an absorber layer;
a buffer layer on the absorber layer;
a front contact layer, wherein a glass substrate, a back contact layer on the glass substrate, the absorber layer on the back contact layer, the buffer layer, and the front contact layer are manufactured as a first module at a temperature exceeding 500 degrees Celsius;
an extracted portion from the first module, the extracted portion comprising the absorber layer, the buffer layer, and the front contact layer; and
a flexible substrate or other substrate, wherein the extracted portion is applied to the flexible substrate or other substrate.
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Abstract
A solar cell includes an absorber layer, a buffer layer on the absorber layer, a front contact layer where a glass substrate, a back contact layer on the glass substrate, the absorber layer on the back contact layer, the buffer layer, and the front contact layer are manufactured as a first module at a temperature exceeding 500 degrees Celsius. The solar further includes an extracted portion from the first module where the extracted portion includes the absorber layer, the buffer layer, and the front contact layer, and where the extracted portion is applied to a flexible substrate or other substrate.
23 Citations
20 Claims
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1. A solar cell, comprising:
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an absorber layer; a buffer layer on the absorber layer; a front contact layer, wherein a glass substrate, a back contact layer on the glass substrate, the absorber layer on the back contact layer, the buffer layer, and the front contact layer are manufactured as a first module at a temperature exceeding 500 degrees Celsius; an extracted portion from the first module, the extracted portion comprising the absorber layer, the buffer layer, and the front contact layer; and a flexible substrate or other substrate, wherein the extracted portion is applied to the flexible substrate or other substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of making a solar cell, comprising
forming a back contact layer on a glass substrate; -
forming an absorber layer on the back contact layer; forming a buffer layer on the absorber layer; forming a front contact layer above the buffer layer, the glass substrate, the back contact layer, the absorber layer, the buffer layer, and the front contact layer forming a first module; extracting from the first module an extracted portion comprising the absorber layer, the buffer layer, and the front contact layer; and applying the extracted portion above a flexible substrate or other substrate. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A method of making a solar cell, comprising
forming a back contact layer on a glass substrate by sputtering molybdenum on the glass substrate; -
forming an absorber layer on the back contact layer by sputtering or co-evaporating combination s of copper, indium, gallium, and selenium on the back contact layer; forming a buffer layer on the absorber layer by chemical bath deposition of cadmium sulfide or zinc sulfide on the absorber layer; forming a front contact layer above the buffer layer, wherein the glass substrate, the back contact layer, the absorber layer, the buffer layer, and the front contact layer form a first module formed at temperatures exceeding 500 degrees Celsius; transferring or delaminating from the first module an extracted portion comprising the absorber layer, the buffer layer, and the front contact layer; and applying the extracted portion above a flexible substrate or other substrate.
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Specification