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Issue 29, 2014
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Controlled in situ fabrication of Ag2O/AgO thin films by a dry chemical route at room temperature for hybrid solar cells

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Abstract

Silver oxides (Ag2O and AgO) have attracted increasing attention as potential solar cell materials for photovoltaic devices due to their ideal bandgap and non-toxicity. In order to eliminate the complicated synthesis and harsh reaction conditions (e.g. high temperature, high vacuum, high energy input, electron beam instrumentation) required by most synthetic strategies, we developed a very facile dry chemical approach to directly prepare AgxO species on the ITO substrate by taking advantage of a UV-O3 surrounding in a controlled way. We systematically investigated the effects of relative humidity, reaction temperature, and the silver deposition technique on the formation of silver oxide (AgO or Ag2O) thin films. A possible synthetic mechanism for the formation of AgO and Ag2O is proposed. More importantly, we have designed and successfully fabricated novel inorganic hybrid Ag2O/Bi2O3 heterojunction thin films for the first time which exhibit significantly improved photocurrent compared with pure Bi2O3 films.

Graphical abstract: Controlled in situ fabrication of Ag2O/AgO thin films by a dry chemical route at room temperature for hybrid solar cells

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Publication details

The article was received on 19 Mar 2014, accepted on 15 May 2014 and first published on 16 May 2014


Article type: Paper
DOI: 10.1039/C4DT00827H
Citation: Dalton Trans., 2014,43, 11333-11338
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    Controlled in situ fabrication of Ag2O/AgO thin films by a dry chemical route at room temperature for hybrid solar cells

    J. Wei, Y. Lei, H. Jia, J. Cheng, H. Hou and Z. Zheng, Dalton Trans., 2014, 43, 11333
    DOI: 10.1039/C4DT00827H

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