Interfacial chemistry as a controlling element in photoinduced charge transfer in n-type cadmium chalconide/Fe(CN)6 4-/3- cells (Invited Paper)

Gayatri Seshadri; Jonathan K.M. Chun; Andrew B. Bocarsly

doi:10.1117/12.130577

9 December 1992 Interfacial chemistry as a controlling element in photoinduced charge transfer in n-type cadmium chalconide/Fe(CN)₆^4-/3- cells (Invited Paper)

Gayatri Seshadri, Jonathan K.M. Chun, Andrew B. Bocarsly

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Proceedings Volume 1729, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XI: Photovoltaics, Photochemistry, Photoelectrochemistry; (1992) https://doi.org/10.1117/12.130577
Event: Optical Materials Technology for Energy Efficiency and Solar Energy, 1992, Toulouse-Labege, France

Abstract

The CdS(Se)-electrolyte interface provides a relatively efficient means of converting optical energy into electricity. A [Cd(Fe(CN)₆]^2-/1- overlayer is demonstrated to stabilize these semiconductors against photodecomposition processes. In the presence of such cyanometalate layers, the kinetics of interfacial charge transfer are greatly dependent on the nature of intercalated alkali cations. These cations interact not only with the overlayer but also with the semiconductor itself. The effect of specific adsorption by soft cations such as Cs⁺ and Hg²⁺ has also been investigated. n- CdS/[Cd(Fe(CN)₆]^2-/1- interfaces allow for the addition of electroactive species to the electrolyte which provide opportunities to generate useful products using solar energy.

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Gayatri Seshadri, Jonathan K.M. Chun, and Andrew B. Bocarsly "Interfacial chemistry as a controlling element in photoinduced charge transfer in n-type cadmium chalconide/Fe(CN)₆^4-/3- cells (Invited Paper)", Proc. SPIE 1729, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XI: Photovoltaics, Photochemistry, Photoelectrochemistry, (9 December 1992); https://doi.org/10.1117/12.130577

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KEYWORDS

Cesium

Electrodes

Semiconductors

Interfaces

Cadmium sulfide

Cadmium

Ions

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