采用高导热金刚石基底的高效散热钙钛矿激光  

Efficient heat dissipation perovskite lasers using a high-thermal-conductivity diamond substrate

作　　者：李国辉 侯缜 魏衍福 赵若凡 冀婷 王文艳 温荣 郑凯波 于盛旺 崔艳霞 Guohui Li;Zhen Hou;Yanfu Wei;Ruofan Zhao;Ting Ji;Wenyan Wang;Rong Wen;Kaibo Zheng;Shengwang Yu;Yanxia Cui(College of Physics and Optoelectronics,Key Laboratory of Interface Science and Engineering in Advanced Materials,Key Lab of Advanced Transducers and Intelligent Control System of Ministry of Education,Taiyuan University of Technology,Taiyuan 030024,China;Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering,Taiyuan 030024,China;Division of Chemical Physics and NanoLund,Lund University,Box 124,22100,Lund,Sweden)

机构地区：[1]College of Physics and Optoelectronics,Key Laboratory of Interface Science and Engineering in Advanced Materials,Key Lab of Advanced Transducers and Intelligent Control System of Ministry of Education,Taiyuan University of Technology,Taiyuan 030024,China [2]Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering,Taiyuan 030024,China [3]Division of Chemical Physics and NanoLund,Lund University,Box 124,22100,Lund,Sweden

出　　处：《Science China Materials》2023年第6期2400-2407,共8页中国科学（材料科学（英文版）

基　　金：supported by the National Natural Science Foundation of China(U21A20496,61922060,61775156,61805172,12104334,62174117,and 61905173);the Key Research and Development Program of Shanxi Province(202102150101007);Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering Program(2022SX-TD020);the Natural Science Foundation of Shanxi Province(20210302123154 and 20210302123169);the Research Project Supported by Shanxi Scholarship Council of China(2021-033);the Research Project Supported by Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering(2021SXFR008);the Introduction of Talents Special Project of Lvliang City(Rc2020206 and Rc2020207);support from China Scholarship Council(202006935009)。

摘　　要：具有低温升的高效散热方案是实现电泵浦激光的关键因素之一.高导热金刚石有望克服钙钛矿激光的散热限制.本文中,我们展示了一种可以将光泵浦过程中产生热量高效耗散的金刚石基底钙钛矿纳米片激光.此外,紧密光学束缚可以通过在纳米片和金刚石基底之间引入一层薄SiO_(2)间隔层而实现.该激光的品质因子高达~1962,激光阈值为52.19μJ cm^(-2).受益于金刚石基底,其泵浦能量密度相关温度灵敏度较低(~0.56±0.01 K cm~2μJ^(-1)).本工作有望促进电泵浦钙钛矿激光的发展.Efficient heat dissipation that can minimize temperature increases in device is critical in realizing electrical injection lasers.High-thermal-conductivity diamonds are promising for overcoming heat dissipation limitations for perovskite lasers.In this study,we demonstrate a perovskite nanoplatelet laser on a diamond substrate that can efficiently dissipate heat generated during optical pumping.Tight optical confinement is also realized by introducing a thin SiO_(2)gap layer between nanoplatelets and the diamond substrate.The demonstrated laser features a Q factor of~1962,a lasing threshold of 52.19μJ cm^(-2),and a low pump-density-dependent temperature sensitivity(~0.56±0.01 K cm~2μJ^(-1))through the incorporation of the diamond substrate.We believe our study could inspire the development of electrically driven perovskite lasers.

关 键 词：金刚石 钙钛矿 温度灵敏度 高效散热 品质因子 高导热 激光阈值 光泵浦 

分 类 号：TB34[一般工业技术—材料科学与工程] TN248.4[电子电信—物理电子学]