采用微反应器技术,在低毒性的非配位有机溶剂十八烯(ODE)/配体十八烯酸(OA)反应体系中对CdSe量子点进行了尺寸可控合成.详细探讨了制备条件对生成的CdSe量子点的粒子数及粒子尺寸的影响.结果表明,反应温度对生成的粒子数不产生显著影响,但相对较高的温度有利于具有较强荧光性的CdSe量子点生成.在固定其他反应条件下,过量的Se有利于生成大量的小粒子,当n(Cd):n(Se)=1:5时,产率可接近100％.反应物中配体的量直接影响到单体的浓度,通过控制配体OA浓度和反应时间,成功地制备了一系列显示从蓝色到红色荧光,粒径在2.2～4.3nm的CdSe量子点.
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