胶体量子点激光器研究现状和展望(特邀)  

Status of Research on Colloidal Quantum Dot Lasers and Their Prospects(Invited)

作　　者：王跃 司墨凡 张浩 Wang Yue;Si Mofan;Zhang Hao(College of Materials Science and Engineering,Nanjing University of Science and Technology,Nanjing 210094,Jiangsu,China)

机构地区：[1]南京理工大学材料科学与工程学院/格莱特研究院,江苏南京210094

出　　处：《中国激光》2024年第1期124-144,共21页Chinese Journal of Lasers

基　　金：国家自然科学基金(62274090,11904172);中央高校基本科研业务费专项资金资助项目(30923010101)。

摘　　要：2023年诺贝尔化学奖颁发给了Moungi G.Bawendi、Louis E.Brus和Alexei I.Ekimov,以表彰其在量子点领域的开创性研究工作。虽然量子点为基础物理研究提供了理想的平台,但在应用方面还远未展现其天赋。其中,量子点独特的电子结构和可溶液加工特性,使其在低成本、高性能激光领域具有广阔的前景。经过20余年的研究,胶体量子点激光器取得了令人瞩目的进展,然而,目前的胶体量子点激光器仍未实现商业化,这说明人们对胶体量子点激光器基础物理的理解以及对关键制备技术的掌握仍有欠缺。基于此,笔者对胶体量子点激光器在近年来的工作进展进行了梳理,并提出了胶体量子点激光领域所面临的挑战,以及克服这些挑战的研究思路。最后,对胶体量子点激光器的未来前景和潜在应用进行了展望。Significance Colloidal quantum dots exhibit a unique electronic structure and solution-processing characteristics,making them suitable for the development of low-cost and high-performance lasers.However,colloidal quantum dot lasers have not yet been commercialized,indicating a lack of understanding of the fundamental physics and a failure to master the key fabrication technologies.In recent years,significant progress has been made in CdSe-based colloidal quantum dot lasers,including the achievement of continuous wave-pumped lasers and electrical injection light amplification.These recently achieved milestones suggest that colloidal quantum dot lasers may become practical instruments in our daily lives in the near future.On this basis,this article reviews the various types of colloidal quantum dot lasers developed in recent years and discusses the inherent challenges.Then,we propose feasible solutions for the issues and summarize the technological advancements in this field.We highlight the essential need to investigate the fundamental physics and key technologies to develop electrically pumped quantum dot lasers.Moreover,this review provides insights for future research directions,such as developing new theories,disruptive technologies,novel gain mechanisms,and unprecedented cavity structures.The article suggests the necessity of utilizing state-of-the-art simulation techniques to predict the physical properties and performance of quantum dot lasers.Finally,we emphasize the need to investigate potential applications of colloidal quantum dot lasers,such as integrating them with flexible substrates to create bendable and foldable laser devices and exploring new application areas in displays and sensors.Progress This article provides a summary of the recent progress in research on semiconductor lasers based on colloidal quantum dots,along with their prospects(Fig.1).First,the advantages of colloidal quantum dots as gain materials for lasers are introduced.Then,we focus on the study of electrically pumped colloidal q

关 键 词：激光器 半导体激光器 胶体量子点 连续波激光 溶液激光 电泵浦激光 

分 类 号：TN248.4[电子电信—物理电子学]