反应时间对GaP纳米材料粒度的影响

Influence of Reaction Time on the Particle Size of GaP Nanocrystals

以GaCl_3和Na_3P为原料,利用苯热合成方法,在相同的温度、不同的反应时间下制备GaP纳米粒子.由分散在苯中的GaP纳米粒子的吸收光谱和透射电子显微镜测试结果可知,反应时间延长时GaP苯溶液的光吸收谱发生明显的蓝移.本文分析了出现这一现象的原因,并从实验上进行了验证.

GaP nanocrystals was synthesized by high temperature high pressure benzene thermal synthesis method, the effect of reaction time on the particle size and its distribution was investigated by means of TEM and optical absorption spectrum measurement. The results indicated that as the time prolonged, a blue - shift became obviouse in the optical absorption spectra of the GaP benzene solution. The cause for this phenomenon was investigated in this paper and the experimental results supported our conclusion.