Method for activating an absorber layer of a thin-film solar cell
AssigneesChina Triumph International Engineering Co., Ltd., Ctf Solar GmbH
InventorsShou Peng, Ganhua Fu, Liyun Ma, Xinjian Yin, Christian Drost
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Abstract
The invention refers to a method for activating an absorber layer of a semi-finished thin-film solar cell. The absorber layer comprises CdSexTe1-x, CdSe, CdS or CdTe. The method comprises the steps of providing a semi-finished thin-film solar cell with an absorber layer comprising a CdSexTe1-x, layer or comprising at least two layers selected from CdS, CdTe, ZnTe, CdSe, forming a polyvinylchloride film on a surface of the absorber layer, and performing a heat treatment of the semi-finished thin-film solar cell with the polyvinylchloride film on it, wherein the temperature is in the range of 300° C. to 500° C.
Claims9
A method for activating an absorber layer of a semi-finished thin-film solar cell, the absorber layer comprising CdSexTe1-x, CdSe, CdS or CdTe, the method comprising the steps of
- providing a semi-finished thin-film solar cell with an absorber layer comprising a CdSexTe1-x, layer or comprising at least two layers selected from CdS, CdTe, ZnTe, CdSe,
- forming a polyvinylchloride film on a surface of the absorber layer, and
- performing a heat treatment of the semi-finished thin-film solar cell with the polyvinylchloride film on it, wherein the temperature is in the range of 300° C. to 500° C.
The method of 1, characterized in that the method further comprises a cleaning step performed after the heat treatment in order to remove organic residuals resulting from the decomposed polyvinylchloride film.
Dependencies are inferred from the claim text.