The effect of stacked Ga-doped MgxZn1 xO (GMZO) thin films being the n-partner buffer layer and of the transparent conducting oxide (TCO) layer on the performance of CdTe thin film solar cells has been investigated. The diversity of the electrical and optical properties of GMZO films versus Ga and Mg doping concentrations suggested the use of low-Ga-doped MgxZn1 xO (LGMZO) films as a high resistance transparent buffer layer. |