Investigation of Zn1−xCdxO films bandgap and Zn1−xCdxO/ZnO heterojunctions band offset by x-ray photoelectron spectroscopy

Investigation of Zn_1−xCd_xO films bandgap and Zn_1−xCd_xO/ZnO heterojunctions band offset by x-ray photoelectron spectroscopy

Chen Jie, Wang Xue-Min, Zhang Ji-Cheng, Yin Hong-Bu, Yu Jian, Zhao Yan^†, Wu Wei-Dong^‡

(color online) XPS pattern of ZnCdO and ZnO thin films (a), Zn 2p (b), and Cd 3d (c) of samples 1–6.