Template assisted growth of microporous structures of CdSe_xTe_{1 −x}and thin film photocurrent studies

Ternary alloyed II?VI group semiconducting CdSe x Te1???x thin films (x?=?0.1 to 1) have been fabricated using electrodeposition technique for detailed photoelectrochemical study and to eventually grow their two-dimensional microporous photonic structures using self-assembled template for optoelectronic devices. Band gap tuning is achieved by controlling Se:Te ratio and the ratio of Se:Te has been controlled using appropriate precursors ratios and their respective concentrations, electrolyte pH etc. Extensive structural and photonic studies have been explored for alloyed CdSe x Te1???x thin films (x?=?0.1 to 1) to establish correlation between structural and optical properties for the series of x. The photoelectrochemical studies have shown a stable photocurrent response and confirmed the n-type semiconducting behaviour of CdSe x Te1???x thin films with photocurrent densities up to 0.6 mA cm?2.