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Growth And Characterization Of Zno For The Front Contact Of Cu(In,Ga)Se2, Rita Bhatt
Growth And Characterization Of Zno For The Front Contact Of Cu(In,Ga)Se2, Rita Bhatt
USF Tampa Graduate Theses and Dissertations
ZnO window layers for CIGS solar cells are grown with a DC sputtering technique instead of a conventional RF sputtering technique. Transparent window layers and buffer layers are sputtered from the Zn target in the presence of Oxygen. The window layer is doped with Aluminum in order to achieve high electrical conductivity and thermal stability. The effect of different sputtering parameters on the electrical and optical properties of the films is elaborately studied. Sets of annealing experiments are also performed. Combinations of different deposition parameters are examined to design the optimum fabrication conditions. We are able to deposit 85% transparent, …