Exciton dissociation in quantum dots connected with photochromic molecule bridges
Exciton dissociation in quantum dots connected with photochromic molecule bridges
复制标题
与光致变色分子桥连接的量子点中的激子解离
DOI：
10.1039/d1tc04451f
复制
发表时间：
2021
影响因子：
6.4
通讯作者：
Choi, Joshua J.
中科院分区：
文献类型：
--
作者：
Yoon, Lucy U.;Adhikari, Surya B.;Sarabamoun, Ephraiem S.;Bietsch, Jonathan M.;Tsai, Esther H.;Wang, Guijun;Choi, Joshua J.
本文报道了与光致变色分子相连的量子点中激子解离动力学的调制。我们的研究结果表明，开关的光致变色分子的配置改变了量子点间的势垒高度，这对电荷隧穿和激子解离有重大影响。激子衰变的主要途径在辐射复合和激子解离之间的切换导致来自量子点的可切换的光致发光强度。我们的研究结果的光存储器和光计算应用的影响进行了讨论。
We report modulation of exciton dissociation dynamics in quantum dots (QD) connected with photochromic molecules. Our results show that switching the configuration of photochromic molecules changes the inter-QD potential barrier height which has a major impact on the charge tunnelling and exciton dissociation. The switching of the dominant exciton decay pathway between the radiative recombination and exciton dissociation results in switchable photoluminescence intensity from QDs. Implications of our findings for optical memory and optical computing applications are discussed.