Facile synthesis of CuSe nanoparticles and high-quality single-crystal two-dimensional hexagonal nanoplatelets with tunable near-infrared optical absorption

Yimin Wu (1) , Ilia Korolkov (2) , Xvsheng Qiao (1) , Xianghua Zhang (2) , Jun Wan (1) , Xianping Fan (1)

1 Department of Materials Science and Engineering
2 ISCR - Institut des Sciences Chimiques de Rennes

A rapid injection approach is used to synthesize the copper selenide nanoparticles and two-dimensional single crystal nanoplates. This technique excludes the use of toxic or expensive materials, increasing the availability of two-dimentional binary chalcogenide semicondutors. The structure of the nanocrystals has been studied and the possible formation mechanism of the nanoplates has been proposed. The optical absorption showed that the nanoplates demonstrated wide and tuneable absorption band in the visible and near infrared region. These nanoplates could be interesting for converting solar energy and for nanophotonic devices operating in the near infrared

Keywords: copper selenide; nanoparticles and nanoplates; optical absorption; rapid injection approach

Domains: Chemical Sciences; Material chemistry

Yimin Wu, Ilia Korolkov, Xvsheng Qiao, Xianghua Zhang, Jun Wan, et al.. Facile synthesis of CuSe nanoparticles and high-quality single-crystal two-dimensional hexagonal nanoplatelets with tunable near-infrared optical absorption. Journal of Solid State Chemistry, 2016, 238, pp.279-283. ⟨10.1016/j.jssc.2016.03.048⟩. ⟨hal-01296811⟩