Effects of reaction temperature on size and optical properties of CdSe nanocrystals |
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| Authors: | Shutang Chen Xiaoling Zhang Yanbing Zhao Qiuhua Zhang |
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| Affiliation: | (1) Institute of Applied Chemistry, Xinjiang University, Urumqi, 830046, People’s Republic of China;(2) Physics and Chemistry Test Centre, Xinjiang University, Urumqi, 830046, People’s Republic of China; |
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| Abstract: | We report experimental results on the reaction temperature dependence of luminescence properties in size-controlled CdSe nanocrystals. Such reaction temperature dependent property is also sizedependent. The diameter of the CdSe nanocrystals is tuned from 4–11.0 nm by varying the reaction temperatures. The growth process and characterization of CdSe nanocrystals are determined by photoluminescence (PL) spectroscopy, ultraviolet-visible (UV-Vis) spectroscopy, X-ray photoelectron spectrometry (XPS), X-ray powder diffraction (XRD), transmission electron microscopy (TEM) and high-resolution transmission electron microscopy (HRTEM). The influence of reaction conditions on the growth of CdSe nanocrystals demonstrates that low reaction temperature is favourable for the formation of high quality CdSe nanocrystals. |
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