基于受激辐射损耗技术的量子点的原位分辨研究  

In-situ Resolution of Quantum Dots Based on STED

作　　者：陈昱翰 徐钦峰 CHEN Yuhan;XU Qinfeng(School of Physics and Optoelectronic Engineering,Ludong University,Yantai 264039,China)

机构地区：[1]鲁东大学物理与光电工程学院,山东烟台264039

出　　处：《鲁东大学学报（自然科学版）》2022年第1期69-76,82,共9页Journal of Ludong University:Natural Science Edition

摘　　要：钙钛矿量子点具有超窄发射线宽、波长可调谐以及超高量子产率等优点,目前已经广泛应用在光电器件中。掌握器件中相邻量子点间的作用机制及其动力学光学特性对提高器件的整体性能至关重要。目前由于受到衍射极限的影响,很难通过传统光学系统研究钙钛矿量子点器件纳米尺度下的光学特性。而STED技术与钙钛矿量子点结合能够实现器件中纳米尺度下量子点原位光学特性研究。本文通过STED超分辨技术研究了器件中纳米尺度下钙钛矿量子点的光学性质变化及动力学特性,对改善钙钛矿量子点纳米器件的性能具有重要意义。Perovskite quantum dots have been widely used in optoelectronic devices due to their ultra narrow emission linewidth,tunable wavelength and ultra-high quantum yield.It is very important to master the interaction mechanism and dynamic optical properties between adjacent quantum dots in the device to improve the overall performance of the device.At present,due to the influence of diffraction limit,it is difficult to study the optical properties of perovskite quantum dot devices in nano scale by traditional optical system.The combination of STED technology and perovskite quantum dots can realize the in-situ optical properties of quantum dots in nano scale.In this paper,the optical properties and dynamic characteristics of perovskite quantum dots in nano scale were studied by STED super-resolution technology,which is of great significance to improve the performance of nano devices.

关 键 词：超分辨技术 钙钛矿量子点 受激辐射损耗技术 

分 类 号：O472[理学—半导体物理]