Gallium - a versatile element for tuning the photoluminescence properties of InP quantum dots.
Gallium - a versatile element for tuning the photoluminescence properties of InP quantum dots.
复制标题
DOI：
10.1039/c8cc09740b
复制
发表时间：
2019-01
影响因子：
4.9
通讯作者：
K. D. Wegner;S. Pouget;W. Ling;M. Carrière;P. Reiss
中科院分区：
文献类型：
--
作者：
K. D. Wegner;S. Pouget;W. Ling;M. Carrière;P. Reiss
为了调节胶体InP量子点的发射性质，探索了Ga的掺入。出乎意料的是，根据镓前体的性质，光致发光要么转变为红色（油酸镓），要么转变为蓝色（乙酰丙酮镓）。在第一种情况下，形成了较大尺寸的InP/GaP核/壳纳米晶体，而在第二种情况下，InGaP合金结构的形成使得能够获得蓝色范围的发射（475 nm）。
With the goal to tune the emission properties of colloidal InP quantum dots, the incorporation of Ga was explored. Unexpectedly, depending on the nature of the gallium precursor, the photoluminescence shifted either to the red (gallium oleate) or to the blue (gallium acetylacetonate). In the first case, larger-sized InP/GaP core/shell nanocrystals were formed, while in the second case the formation of an InGaP alloy structure enabled the blue range of emission (475 nm) to be accessed.