A Comprehensive Review of Group-III Nitride Light-Emitting Diodes: From Millimeter to Micro-Nanometer Scales.

IF 3 3区工程技术 Q2 CHEMISTRY, ANALYTICAL Micromachines Pub Date : 2024-09-25 DOI:10.3390/mi15101188

Xinye Fan, Jiawang Shi, Yiren Chen, Guoqing Miao, Hong Jiang, Hang Song

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Abstract

This review describes the development history of group-III nitride light-emitting diodes (LEDs) for over 30 years, which has achieved brilliant achievements and changed people's lifestyles. The development process of group-III nitride LEDs is the sum of challenges and solutions constantly encountered with shrinking size. Therefore, this paper uses these challenges and solutions as clues for review. It begins with reviewing the development of group-III nitride materials and substrates. On this basis, some key technological breakthroughs in the development of group-III nitride LEDs are reviewed, mainly including substrate pretreatment and p-type doping in material growth, the proposal of new device structures such as nano-LED and quantum dot (QD) LED, and the improvement in luminous efficiency, from the initial challenge of high-efficiency blue luminescence to current challenge of high-efficiency ultraviolet (UV) and red luminescence. Then, the development of micro-LEDs based on group-III nitride LEDs is reviewed in detail. As a new type of display device, micro-LED has drawn a great deal of attention and has become a research hotspot in the current international display area. Finally, based on micro-LEDs, the development trend of nano-LEDs is proposed, which is greener and energy-saving and is expected to become a new star in the future display field.

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全面回顾第三类氮化物发光二极管：从毫米到微纳米尺度。

本综述介绍了第三族氮化物发光二极管（LED）30 多年的发展历程，它取得了辉煌的成就，改变了人们的生活方式。第 III 族氮化物发光二极管的发展过程是在体积不断缩小的同时不断遇到挑战和解决方案的总和。因此，本文以这些挑战和解决方案为线索进行回顾。本文首先回顾了 III 族氮化物材料和衬底的发展历程。在此基础上，回顾了第三族氮化物 LED 发展过程中的一些关键技术突破，主要包括衬底预处理和材料生长过程中的 p 型掺杂、纳米 LED 和量子点 (QD) LED 等新型器件结构的提出，以及发光效率的提高，从最初的高效蓝色发光挑战到目前的高效紫外线 (UV) 和红色发光挑战。然后，详细回顾了基于 III 族氮化物 LED 的微型 LED 的发展。作为一种新型显示器件，微型 LED 备受关注，已成为当前国际显示领域的研究热点。最后，在微型 LED 的基础上，提出了纳米 LED 的发展趋势，纳米 LED 更环保、更节能，有望成为未来显示领域的一颗新星。

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来源期刊

Micromachines NANOSCIENCE & NANOTECHNOLOGY-INSTRUMENTS & INSTRUMENTATION

CiteScore

5.20

自引率

14.70%

发文量

1862

审稿时长

16.31 days

期刊介绍： Micromachines (ISSN 2072-666X) is an international, peer-reviewed open access journal which provides an advanced forum for studies related to micro-scaled machines and micromachinery. It publishes reviews, regular research papers and short communications. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced.