Effect of thermal pretreatment of metal precursor on the properties of Cu
2
ZnSnS
4
films
*
Wang Wei
a)
, Shen Hong-Lie
a),
b)†
, Jin Jia-Le
a)
, Li Jin-Ze
a)
, Ma Yue
c)
(a) Reflectance and (b) transmittance spectra of CZTS films pretreated at different temperatures.