Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1126/science.aax3489 |
Sub-single-exciton lasing using charged quantum dots coupled to a distributed feedback cavity | |
Kozlov, Oleg V.1; Park, Young-Shin1,2; Roh, Jeongkyun1; Fedin, Igor1; Nakotte, Tom1,3; Klimov, Victor I.1 | |
2019-08-16 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2019 |
卷号 | 365期号:6454页码:672-+ |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Colloidal semiconductor quantum dots (QDs) are attractive materials for realizing highly flexible, solution-processable optical gain media, but they are difficult to use in lasing because of complications associated with extremely short optical-gain lifetimes limited by nonradiative Auger recombination. By combining compositional grading of the QD's interior for hindering Auger decay with postsynthetic charging for suppressing parasitic ground-state absorption, we can reduce the lasing threshold to values below the single-exciton-per-dot limit. As a favorable departure from traditional multi-exciton-based lasing schemes, our approach should facilitate the development of solution-processable lasing devices and thereby help to extend the reach of lasing technologies into areas not accessible with traditional, epitaxially grown semiconductor materials. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000481688700042 |
WOS关键词 | OPTICAL GAIN ; EMISSION |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/202088 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Los Alamos Natl Lab, Chem Div, C PCS, Los Alamos, NM 87545 USA; 2.Univ New Mexico, Ctr High Technol Mat, Albuquerque, NM 87131 USA; 3.New Mexico State Univ, Dept Chem & Mat Engn, Las Cruces, NM 88003 USA |
推荐引用方式 GB/T 7714 | Kozlov, Oleg V.,Park, Young-Shin,Roh, Jeongkyun,et al. Sub-single-exciton lasing using charged quantum dots coupled to a distributed feedback cavity[J]. SCIENCE,2019,365(6454):672-+. |
APA | Kozlov, Oleg V.,Park, Young-Shin,Roh, Jeongkyun,Fedin, Igor,Nakotte, Tom,&Klimov, Victor I..(2019).Sub-single-exciton lasing using charged quantum dots coupled to a distributed feedback cavity.SCIENCE,365(6454),672-+. |
MLA | Kozlov, Oleg V.,et al."Sub-single-exciton lasing using charged quantum dots coupled to a distributed feedback cavity".SCIENCE 365.6454(2019):672-+. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论