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 the sample illuminated with different laser powers, (b) the intensity variation of the peak at 339 cm as a function of the laser powers.