Fabrication and temperature-dependent band gap shrinkage of α-phase Bi2O3 thin films grown by atomic layer deposition methodYude Shen, Yawei Li, Kai Jiang, Jinzhong Zhang, Zhihua Duan, Zhigao Hu and Junhao ChuEur. Phys. J. Appl. Phys., 62 2 (2013) 20303DOI: https://doi.org/10.1051/epjap/2012130133