Indium complexes selenides

Indium(III)-selenide exhibits a complex hexagonal structure making it possible for ions to diffuse in and alter the physical properties without substantially altering the host structure [139]. Thus, the compound can be employed as a cathode in microbatteries and as a solid solution electrode in microcapacitors.[139] Indium selenide, IniSe.i, is also a promising candidate for solar energy conversion [139]. The compound can be prepared by the CVD of In(SePh)3 at 550°C [138]. 

The electrodeposition of copper indium selenide and telluride was discussed by Bhattacharya and Rajeshwar (66). The deposition solutions were made in a multistep process. A 0.5 M solution (A) of indium chloride was prepared. The copper solution (B) was prepared from cuprous chloride dissolved in 30 ml of triethanolamine, 40 ml of 30% ammonia and 150 ml of water. The copper concentration was 0.5 M. Solutions A and B were mixed in equal amounts, diluted 10 times and adjusted to pH 1 with HCI. This solution (C) was aged for 24 hrs. The actual deposition bath was made from 20 ml of either 0.1 M selenium oxide or 0.1 M tellurium oxide and 60 ml of solution C. The triethanolamine was added to the copper solution as a complexing agent to shift the deposition potential. Depositions were carried out at -1.0 volt versus a saturated calomel electrode. The initial current density was 12 mA/cm . 

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