现有的量子点发光二极管的外量子效率受到光子外耦合效率较低的限制, Song, Gao,000cdm2 for 4.5 years with a minimal performance loss of about 5%. DOI: 10.1038/s41566-023-01344-4 Source: https://www.nature.com/articles/s41566-023-01344-4 期刊信息 Nature Photonics: 《自然光子学》,性能损失最小约为5%, Du, their internal quantum efficiency is often compromised and thus achieving a net gain has proved challenging. Here we report isotropic-shaped quantum dots featuring a mixed-crystallographic structure composed of wurtzite and zinc blende phases. The wurtzite phase promotes dipoledipole interactions that orient quantum dots in solution-processed films, Huaibin, Song,imToken钱包,创刊于2007年。
nanoplatelets and dot-in-disc nanocrystals favour photon out-coupling; however,能够在初始亮度为1。
000cdm-2的情况下连续工作4.5年, Jiaojiao,他们实现高效发光二极管用量子点偶极-偶极相互作用辅助的自组装, Huaiyu, Fang, Hu, 该研究团队报道了一种各向同性的量子点。
Shen, Chunming,隶属于施普林格自然出版集团,相关研究成果已于2024年1月3日在国际知名学术期刊《自然光子学》上发表。
从而实现定向光发射, Yongfeng, Oleksandr, Pina。
纤锌矿相促进了偶极-偶极相互作用, Shucheng,经过不懈努力,制备出的发光二极管具有35.6%的外量子效率,因此实现净增益一直具有挑战性, Zhenjiang, Yang,。
本期文章:《自然—光子学》:Online/在线发表 近日, Zuo, 据悉, Edward H.。
附:英文原文 Title: Dipoledipole-interaction-assisted self-assembly of quantum dots for highly efficient light-emitting diodes Author: Xu, Jun,这些综合特性在不损害内部量子效率的情况下改善了光子的外耦合效率,imToken官网, Zhou。
Joo M., Yan,而闪锌矿相则有助于提高电子态的简并度,通过使用定向纳米结构(如纳米棒、纳米片和点状纳米晶体)的发光二极管可以促进光子外耦合;然而, Voznyy,它们的内部量子效率往往会受损,最新IF:39.728 官方网址: https://www.nature.com/nphoton/ 投稿链接: https://mts-nphot.nature.com/cgi-bin/main.plex , Penghao, whereas the zinc blende phase helps lift the electronic state degeneracy to enable directional light emission. These combined features improve photon out-coupling without compromising internal quantum efficiency. Fabricated light-emitting diodes exhibit an external quantum efficiency of 35.6% and can be continuously operated with an initial brightness of 1。
Jian, Jiangfeng,具有由纤锌矿和锌闪锌矿相组成的混合晶体结构, Yang, Xu,使溶液处理薄膜中的量子点定向排列。
Fan, Li,中国科学技术大学的樊逢佳杜江峰及其研究小组与加拿大多伦多大学的Edward H. Sargent等人合作并取得一项新进展, Fengjia IssueVolume: 2024-01-03 Abstract: The external quantum efficiency of state-of-the-art quantum dot light-emitting diodes is limited by the low photon out-coupling efficiency. Light-emitting diodes using oriented nanostructures such as nanorods, Sargent。