A simple and novel route for the synthesis of water soluble ZnSe quantum dots using the Nano-Se as the reaction intermediate

作者：Qin Hongyi; Jian Wenping; Zhang Yinan; Kim Taesung; Jiang Zhenhua; Jiang Dong^*; Sun Dahui

来源：Materials Letters, 2012, 67(1): 28-31.

DOI：10.1016/j.matlet.2011.09.033

• Particles
• Nanosize
• ZnSe quantum dots
• Water soluble
• Nano Se
• Nanocrystalline materials

A new and simple synthesis method for water soluble and low toxic ZnSe QDs is presented in this paper. N-acetyl-L-cysteine (NAC) is chosen as the stabilizer of ZnSe QDs and reducing agent of Na(2)SeO(3) in one reaction system. The reaction intermediate Nano-Se generated by the redox reaction between NAC and Na(2)SeO(3) is used as the Se source. The water soluble ZnSe QDs obtained by our synthesis method show blue-green light emission. The effects of the pH, stabilizer concentration and synthesis time on the photoluminescence (PL) intensity of ZnSe QDs are also investigated. This new synthesis method simplifies the reaction steps, enhances the utilization rate of chemicals and reduces the cost.

• 出版日期2012-1-15
• 单位吉林大学