{"title":"Free-standing perovskites for micro-LEDs","authors":"Matthew Parker","doi":"10.1038/s41928-025-01359-5","DOIUrl":null,"url":null,"abstract":"<p>The researchers — who are based at the Chinese Academy of Sciences, University of Science and Technology of China and Jilin University — grew the perovskite using chemical vapour deposition on a sapphire substrate with a graphene interlayer. Because of the small lattice mismatch with sapphire, perovskite with an area of 4 cm<sup>2</sup> can be grown without observable defects or grain boundaries and then exfoliated due to the weak binding of the graphene interlayer to create a free-standing film. This film can then be integrated into micro-LEDs that have a pixel size down to 4 μm and exhibit an external quantum efficiency of 16.7% and brightness of 4 × 10<sup>5</sup> cd m<sup>–2</sup>.</p><p><b>Original reference:</b> <i>Nat. Nanotechnol</i>. https://doi.org/10.1038/s41565-024-01841-9 (2025)</p>","PeriodicalId":19064,"journal":{"name":"Nature Electronics","volume":"29 1","pages":""},"PeriodicalIF":33.7000,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nature Electronics","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1038/s41928-025-01359-5","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
The researchers — who are based at the Chinese Academy of Sciences, University of Science and Technology of China and Jilin University — grew the perovskite using chemical vapour deposition on a sapphire substrate with a graphene interlayer. Because of the small lattice mismatch with sapphire, perovskite with an area of 4 cm2 can be grown without observable defects or grain boundaries and then exfoliated due to the weak binding of the graphene interlayer to create a free-standing film. This film can then be integrated into micro-LEDs that have a pixel size down to 4 μm and exhibit an external quantum efficiency of 16.7% and brightness of 4 × 105 cd m–2.
Original reference:Nat. Nanotechnol. https://doi.org/10.1038/s41565-024-01841-9 (2025)
期刊介绍：
Nature Electronics is a comprehensive journal that publishes both fundamental and applied research in the field of electronics. It encompasses a wide range of topics, including the study of new phenomena and devices, the design and construction of electronic circuits, and the practical applications of electronics. In addition, the journal explores the commercial and industrial aspects of electronics research.
The primary focus of Nature Electronics is on the development of technology and its potential impact on society. The journal incorporates the contributions of scientists, engineers, and industry professionals, offering a platform for their research findings. Moreover, Nature Electronics provides insightful commentary, thorough reviews, and analysis of the key issues that shape the field, as well as the technologies that are reshaping society.
Like all journals within the prestigious Nature brand, Nature Electronics upholds the highest standards of quality. It maintains a dedicated team of professional editors and follows a fair and rigorous peer-review process. The journal also ensures impeccable copy-editing and production, enabling swift publication. Additionally, Nature Electronics prides itself on its editorial independence, ensuring unbiased and impartial reporting.
In summary, Nature Electronics is a leading journal that publishes cutting-edge research in electronics. With its multidisciplinary approach and commitment to excellence, the journal serves as a valuable resource for scientists, engineers, and industry professionals seeking to stay at the forefront of advancements in the field.
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