Low-temperature phase transformation of CZTS thin films

Zhao Wei^{1, 2}, Du Lin-Yuan¹, Liu Lin-Lin¹, Sun Ya-Li¹, Liu Zhi-Wei¹, Teng Xiao-Yun¹, Xie Juan², Liu Kuang³, Yu Wei^{1, †}, Fu Guang-Sheng^{1, ‡}, Gao Chao^{4, §}

(color online) (a) The Raman spectra of sample at different temperatures, (b) the variation of position of A mode with different temperatures.