| 题名 | Mixed Spacer Cation Stabilization of Blue-Emitting n = 2 Ruddlesden–Popper Organic–Inorganic Halide Perovskite Films |
| 作者 | |
| 通讯作者 | Popović，Jasminka |
| 发表日期 | 2019
|
| DOI | |
| 发表期刊 | |
| ISSN | 21951071
|
| EISSN | 2195-1071
|
| 卷号 | 8期号:4 |
| 摘要 | Ruddlesden–Popper halide perovskite (RPP) materials are of significant interest for light-emitting devices since their emission wavelength can be controlled by tuning the number of layers n, resulting in improved spectral stability compared to mixed halide devices. However, RPP films typically contain phases with different n, and the low n phases tend to be unstable upon exposure to humidity, irradiation, and/or elevated temperature which hinders the achievement of pure blue emission from n = 2 films. In this work, two spacer cations are used to form an RPP film with mixed cation bilayer and high n = 2 phase purity, improved stability, and brighter light emission compared to a single spacer cation RPP. The stabilization of n = 2 phase is attributed to favorable formation energy, reduced strain, and reduced electron–phonon coupling compared to the RPP films with only one type of spacer cation. Using this approach, pure blue light-emitting diodes (LEDs) with Commission Internationale de l'éclairage (CIE) coordinates of (0.156, 0.088) and excellent spectral stability are achieved. |
| 关键词 | |
| 相关链接 | [Scopus记录] |
| 收录类别 | |
| 语种 | 英语
|
| 学校署名 | 其他
|
| 资助项目 | European Commission[KK.01.1.1.06]
; University of Hong Kong[]
; [JCYJ20160530184523244]
|
| WOS研究方向 | Materials Science
; Optics
|
| WOS类目 | Materials Science, Multidisciplinary
; Optics
|
| WOS记录号 | WOS:000502988800001
|
| 出版者 | |
| EI入藏号 | 20195207901411
|
| EI主题词 | Perovskite
; Stabilization
|
| EI分类号 | Minerals:482.2
|
| Scopus记录号 | 2-s2.0-85076740530
|
| 来源库 | Scopus
|
| 引用统计 |
被引频次[WOS]：55
|
| 成果类型 | 期刊论文 |
| 条目标识符 | http://sustech.caswiz.com/handle/2SGJ60CL/61350 |
| 专题 | 理学院_物理系 工学院_材料科学与工程系 |
| 作者单位 | 1.Department of Physics,The University of Hong Kong,Pokfulam Road,Hong Kong 2.Department of Physics,Southern University of Science and Technology,Shenzhen,No. 1088, Xueyuan Road,518055,China 3.Department of Chemistry,The University of Hong Kong,Pokfulam Road,Hong Kong 4.Department of Materials Science and Engineering,Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG),Southern University of Science and Technology,Shenzhen,No. 1088, Xueyuan Road,518055,China 5.Division of Theoretical Physics,Condensed Matter and Statistical Physics Group,Ruđer Bošković Institute,Zagreb,Bijenička 54,10000,Croatia 6.Department of Physics,The Hong Kong University of Science and Technology,Clearwater Bay,Hong Kong 7.Department of Physics,Research Centre of Excellence for Organic Electronics and Institute of Advanced Materials,Hong Kong Baptist University,Kowloon Town,Hong Kong 8.Department of Physics,Faculty of Science,University of Zagreb,Zagreb,Bijenička 32,10000,Croatia 9.Division of Materials Physics,Laboratory for Synthesis and Crystallography of Functional Materials,Ruđer Bošković Institute,Zagreb,Bijenička 54,10000,Croatia |
| 推荐引用方式 GB/T 7714 |
Leung，Tik Lun,Tam，Ho Won,Liu，Fangzhou,等. Mixed Spacer Cation Stabilization of Blue-Emitting n = 2 Ruddlesden–Popper Organic–Inorganic Halide Perovskite Films[J]. Advanced Optical Materials,2019,8(4).
|
| APA |
Leung，Tik Lun.,Tam，Ho Won.,Liu，Fangzhou.,Lin，Jingyang.,Ng，Alan Man Ching.,...&Djurišić，Aleksandra B..(2019).Mixed Spacer Cation Stabilization of Blue-Emitting n = 2 Ruddlesden–Popper Organic–Inorganic Halide Perovskite Films.Advanced Optical Materials,8(4).
|
| MLA |
Leung，Tik Lun,et al."Mixed Spacer Cation Stabilization of Blue-Emitting n = 2 Ruddlesden–Popper Organic–Inorganic Halide Perovskite Films".Advanced Optical Materials 8.4(2019).
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