tʃˈeɪndʒɪŋ ðə tˈɛmpɹɪtʃɚɹ æt wˌɪtʃ ðə kˈɛmɪkəlz ɑːɹ dᵻpˈɑːzɪɾᵻd ænd ðɪ ˈɪn:ˈɛs ɹˈeɪʃɪˌoʊ kæn ɐfˈɛkt ðɪ ˈɑːptɪkəl bˈænd ɡˈæp ʌvðə fˈɪlm.
Changing the temperature at which the chemicals are deposited and the In:S ratio can affect the optical band gap of the film.