钙钛矿量子点色转换Micro-LEDs:稳定性与图案化研究进展  

Perovskite quantum dot color conversion Micro-LEDs:progress in stability and patterning

作　　者：严梓峻 刘众 杨晓 赖寿强 颜丰裕 林宗民 林岳 吕毅军 郭浩中 陈忠 吴挺竹 Yan Zijun;Liu Zhong;Yang Xiao;Lai Shouqiang;Yan Fengyu;Lin Zongmin;Lin Yue;Lv Yijun;Kuo Haochung;Chen Zhong;Wu Tingzhu(School of Electronic Science and Engineering,Xiamen University,Xiamen,Fujian 361000,China;Fujian HeYi IOT Technology Co.,Zhangzhou,Fujian 363000,China;Quanzhou Sanan Semiconductor Technology Co.,Quanzhou,Fujian 362000,China;Department of Photonics and Graduate Institute of Electro-Optical Engineering,Yang Ming Chiao Tung University,Hsinchu,Taiwan 30010,China;Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province(IKKEM),Xiamen,Fujian 361000,China)

机构地区：[1]厦门大学电子科学与技术学院,福建厦门361000 [2]福建和宜物联科技有限公司,福建漳州363000 [3]泉州三安半导体科技有限公司,福建泉州362000 [4]阳明交通大学光电工程学系,中国台湾新竹30010 [5]福建省能源材料科学与技术创新实验室,福建厦门361000

出　　处：《光电工程》2024年第7期1-26,共26页Opto-Electronic Engineering

基　　金：国家自然科学基金面上项目(62274138);福建省杰出青年基金资助项目(2023J06012);福建省科技计划引导性项目(2021H0011);中央高校基本科研业务费专项资金项目(20720230029);福厦泉自创区化合物半导体协同创新平台项目(3502ZCQXT2022005)。

摘　　要：微型发光二极管(Micro light-emitting diode,Micro-LED)显示具有优异的显示性能和光电性质,被称为“下一代”终极显示技术。为了满足近眼显示需求,Micro-LED需要进一步微缩与集成化。随着微纳级图案化技术的不断革新,荧光色转换层法表现出低制造成本等显著优势,相较于三色芯片法,更适合应用于对色域、分辨率有更高要求的虚拟/增强现实显示应用。钙钛矿量子点是最有前景的荧光色转换材料,然而自身晶格固有的不稳定性和外界环境因素刺激共同导致的结构降解是一大问题。另外,如何制备与Micro-LED芯片阵列相匹配的微米级荧光阵列图案是至关重要的。为此,本文首先讲述了造成钙钛矿量子点结构不稳定性的原因,其次,总结了配体交换、离子掺杂、表面包覆和化学交联等方案在提升钙钛矿量子点稳定性方面的应用,最后,总结了光刻技术和喷墨打印技术在制备高分辨率钙钛矿量子点荧光阵列的最新研究进展。Micro light-emitting diode(Micro-LED)display is considered the"next-generation"ultimate display technology due to its excellent display performance and optoelectronic properties.In order to meet the requirements of near-eye display applications,further miniaturization and integration of Micro-LED are necessary.With the continuous innovation of micro/nanopatterning technology,the fluorescent color conversion layer method has significant advantages such as low manufacturing cost.Compared to the three-color chip method,it is more suitable for virtual/augmented reality display applications that demand higher color gamut and resolution.Perovskite quantum dots(PQDs)are the most promising fluorescent color conversion materials.However,the inherent lattice instability of PQDs and degradation caused by external environmental factors pose significant challenges.Furthermore,it is crucial to develop micro-scale fluorescent array patterns that match the Micro-LED chip array.Therefore,this paper first discusses the factors that affect the structural instability of perovskite quantum dots.Then,it summarizes the applications of strategies such as ligand exchange,ion doping,surface coating,and chemical cross-linking in enhancing the stability of perovskite quantum dots.Finally,the latest research progress for fabricating high-resolution perovskite quantum dot fluorescent arrays using photolithography and inkjet printing techniques is summarized.

关 键 词：Micro-LED 荧光色转换层法 钙钛矿量子点 稳定性 图案化技术 

分 类 号：TN27[电子电信—物理电子学] TB34[一般工业技术—材料科学与工程]