基于非辐射能量传递机制的量子点微型led研究进展

IF 15.3 1区物理与天体物理 Q1 OPTICS

Opto-Electronic Advances Pub Date : 2021-04-06 DOI:10.29026/OEA.2021.210022

X. Fan, Tingzhu Wu, Bin Liu, Rong-Xia Zhang, H. Kuo, Zhong Chen

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引用次数: 17

摘要

对于微型发光二极管(micro- led)而言，其出色的亮度、低能耗和超高分辨率是显著的优势。然而，传统无机荧光粉的大尺寸和大量的侧缺陷限制了小尺寸微型led的实际应用。近年来，人们提出了量子点(QD)和非辐射能量传递(NRET)来解决存在的问题。量子点具有纳米级的尺寸和较高的发光效率，能够与微型led芯片近距离接触，适合用于NRET。量子点与微型led芯片之间的NRET进一步提高了全彩微型led器件的颜色转换效率(CCE)和有效量子产率(EQY)。在本文中，我们讨论了量子点微LED器件的NRET机制，然后详细介绍了纳米柱LED、纳米孔LED和纳米环LED。这些结构有利于量子点与微型LED，特别是纳米环LED之间的NRET。最后，还描述了挑战和未来的设想。

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Recent developments of quantum dot based micro-LED based on non-radiative energy transfer mechanism

With regard to micro-light-emitting diodes (micro-LEDs), their excellent brightness, low energy consumption, and ultra-high resolution are significant advantages. However, the large size of traditional inorganic phosphors and the number of side defects have restricted the practical applications of small sized micro-LEDs. Recently, quantum dot (QD) and non-radiative energy transfer (NRET) have been proposed to solve existing problems. QDs possess nanoscale dimensions and high luminous efficiency, and they are suitable for NRET because they are able to nearly contact the micro-LED chip. The NRET between QDs and micro-LED chip further improves the color conversion efficiency (CCE) and effective quantum yield (EQY) of full-color micro-LED devices. In this review, we discuss the NRET mechanism for QD micro-LED devices, and then nano-pillar LED, nano-hole LED, and nano-ring LED are introduced in detail. These structures are be-neficial to the NRET between QD and micro-LED, especially nano-ring LED. Finally, the challenges and future envisions have also been described.

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来源期刊

Opto-Electronic Advances OPTICS-

CiteScore

19.30

自引率

7.10%

发文量

128

期刊介绍： Opto-Electronic Advances (OEA) is a distinguished scientific journal that has made significant strides since its inception in March 2018. Here's a collated summary of its key features and accomplishments: Impact Factor and Ranking: OEA boasts an impressive Impact Factor of 14.1, which positions it within the Q1 quartiles of the Optics category. This high ranking indicates that the journal is among the top 25% of its field in terms of citation impact. Open Access and Peer Review: As an open access journal, OEA ensures that research findings are freely available to the global scientific community, promoting wider dissemination and collaboration. It upholds rigorous academic standards through a peer review process, ensuring the quality and integrity of the published research. Database Indexing: OEA's content is indexed in several prestigious databases, including the Science Citation Index (SCI), Engineering Index (EI), Scopus, Chemical Abstracts (CA), and the Index to Chinese Periodical Articles (ICI). This broad indexing facilitates easy access to the journal's articles by researchers worldwide. Scope and Purpose: OEA is committed to serving as a platform for the exchange of knowledge through the publication of high-quality empirical and theoretical research papers. It covers a wide range of topics within the broad area of optics, photonics, and optoelectronics, catering to researchers, academicians, professionals, practitioners, and students alike.