中文摘要：

分散水的 CdSe/Bi < 潜水艇 class= “ a-plus-plus ” > 2 Se < 潜水艇 class= “ a-plus-plus ” > 有 27.09% 的一个 photothermal 变换系数的 3 核心 / 壳 QD 被阳离子交换反应综合了。QD 的微观结构和水晶结构，被 TEM 和 XRD 证实，证明部分阳离子交换发生在 CdSe QD 内。二主要机制为优秀 photothermal 变换负责：搬运人的放射的再结合的抑制由于 type-II 半导体 heterostructures，和 QD 的大 surface-to-volume 比率的形成。Photothermal 变换实验显示 CdSe/Bi < 潜水艇 class= “ a-plus-plus ” > 2 Se < 潜水艇 class= “ a-plus-plus ” > 3 QD 显示出高 photothermal 变换效率和优秀 NIR photostability。

英文摘要：

Water-dispersed CdSe/Bi2Se3 core/shell QDs with a photothermal conversion coefficient of 27.09% have been synthesized by a cation exchange reaction. The microstructure and crystal structure of the QDs, which were confirmed by TEM and XRD, showed that partial cation exchange occurred inside the CdSe QDs. Two main mechanisms are responsible for the excellent photothermal conversion： inhibition of radiative recombination of carriers due to the formation of type-II semiconductor heterostructures, and the large surface-to-volume ratio of the QDs. Photothermal conversion experiments indicated that the CdSe/Bi2Se3 QDs showed high photothermal conversion efficiency and excellent NIR photostability.