硒化镉量子点水相合成及其电化学发光研究

Cadmium Selenide Quantum Dots Synthesized by Aqueous Phase and Investigation of Their Electrochemiluminescence

摘要: 为通过水相合成法制备电化学发光强度高的硒化镉(CdSe)量子点，本文研究了pH、反应时间、反应温度、Cd与Se的摩尔比以及不同表面保护剂等合成条件对CdSe量子点电化学发光性能的影响。pH10、反应10小时、反应温度95℃、Cd和Se的摩尔比为2:1且保护剂为巯基乙酸(TGA)时，水相合成的CdSe量子点电化学发光性能最佳，最适合于电化学发光检测。

Abstract: In order to prepare of cadmium selenide quantum dots with high electrochemical luminescence intensity through aqueous phase synthesis method. This article investigated the effect of synthesis conditions on the electrochemiluminescence performance of CdSe quantum dots, such as, pH, reaction time, reactiontemperature, molar ratio of Se toCd, and different surface protectors. The CdSe quantum dots with the best electrochemical luminescence performanceoptimalwere synthesized in aqueous phase conditions of CdSe were pH = 10, Time = 10 h, T = 95˚C, and thioglycollic acid as surface protectors, and were most suitable for electrochemical luminescence detection.