Thin film solar cell electrode and preparation method thereof
A technology of solar cells and thin films, applied in the field of solar cells, can solve problems such as effective methods and technical means that have not been mentioned, and achieve the effects of improving transfer efficiency, solving binding force, and reducing resistance
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[0020] The present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not have any limitation on the protection scope of the present invention.
[0021] Such as figure 1 Compared with the structure of the traditional thin-film solar battery electrode, the molybdenum thin film on the glass substrate 1 of the product of the present invention is composed of two layers of molybdenum crystal grains: coarse particles with a diameter of 12-16nm. The molybdenum crystal grain layer 21 and the fine molybdenum crystal grain layer 22 with a particle size of 2-6 nm, in which the coarse molybdenum crystal grain layer 21 is in contact with the glass substrate 1.
[0022] In the above-mentioned two molybdenum metal crystal grain layers, the thickness of the fine crystal grain layer 22 is 1.6-3.3 times the thickness of the coarse molybdenum crystal grain layer 21, preferably 2 times.
[0023]
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