Electrochromic properties of Rhodium oxide (cas 12680-36-3) thin films prepared by reactive sputtering under an O2 or H2O vapor atmosphere

Add time:08/23/2019    Source:sciencedirect.com

Rhodium (Rh) oxide thin films were prepared by reactive sputtering at different substrate temperatures under an oxygen or water (H2O) vapor atmosphere, and their crystal structure, density, optical properties, and electrochromic properties were investigated. The film density decreased with decreasing substrate temperature, and the lowest density of 4.2 g/cm3 was obtained for the film deposited at −20 °C under a H2O vapor atmosphere. The Rh oxide films deposited at −20 °C under a H2O vapor atmosphere showed anodic electrochromism between light yellow and olive i.e., bleached and colored states, respectively using an aqueous 1 M potassium hydroxide as the electrolyte; these films also exhibited the largest transmittance change, of 26%, at a wavelength of 600 nm.

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