title: Controlled in situ fabrication of Ag2O/AgO thin films by a dry chemical route at room temperature for hybrid solar cells.
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.
authors.affiliation: Key Laboratory for Micro-Nano Energy Storage and Conversion Materials of Henan Province, Institute of Surface Micro and Nano Materials, Xuchang University, Henan 461000, P. R. China. zhengzhi99999@gmail.com.
authors.forename: Jie
authors.initials: J
authors.lastname: Wei
authors.forename: Yan
authors.initials: Y
authors.lastname: Lei
authors.forename: Huimin
authors.initials: H
authors.lastname: Jia
authors.forename: Jiamei
authors.initials: J
authors.lastname: Cheng
authors.forename: Hongwei
authors.initials: H
authors.lastname: Hou
authors.forename: Zhi
authors.initials: Z
authors.lastname: Zheng