Efficient Perovskite Light-Emitting Diodes via Tuning Nanoplatelet Distribution and Crystallinity Orientation
文献类型：期刊论文
| 作者 | Zou, YT; Huang, Q; Yang, YG; Ban, MY; Li, SY; Han, YJ; Wu, T; Tan, YS; Gao, XY; Song, T |
| 刊名 | ADVANCED MATERIALS INTERFACES
 |
| 出版日期 | 2018 |
| 卷号 | 5期号:20页码:- |
| 关键词 | CSPBX3 NANOCRYSTALS I NANOCRYSTALS CS4PBX6 X HALIDE TRANSFORMATION BR SEMICONDUCTORS CONFINEMENT CL |
| ISSN号 | 2196-7350 |
| DOI | 10.1002/admi.201801030 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Quasi-2D Ruddlesden-Popper (RP) perovskites with quantum-size-tuned nanoplatelet crystallites are particularly attractive for light-emitting diode (LED) applications because of their excellent charge transport, bandgap tunability, and narrow emission peaks. Favorable energy cascade structure in 2D RP perovskites can funnel the photoexcitation from large-bandgap nanoplatelets to the lowest bandgap ones, which promises efficient radiative recombination. However, how to rationally control the nanoplatelet distribution as well as the crystallization characteristics to ensure efficient energy transfer and charge transport in perovskite films is still challenging. Here, a simple path to facilely tune the nanoplatelet distribution as well as the crystal orientation via carefully controlling postannealing condition is provided. With optimizing the thermal annealing time, compact and flat perovskite films with high photoluminescence quantum yield are obtained. Based on the optimized perovskite films, green LED with a current efficiency of 43.7 cd A(-1), corresponding to an external quantum efficiency of 13.9%, is achieved. This work provides a simple path to target highly efficient perovskite LED devices. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/30923]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Soochow Univ, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Inst Funct Nano & Soft Mat FUNSOM, 199 Renai Rd, Suzhou 215123, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, 239 Zhangheng Rd, Shanghai 201204, Peoples R China 3.Soochow Univ, Collaborat Innovat Ctr Suzhou Nano Sci & Technol, 199 Renai Rd, Suzhou 215123, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zou, YT,Huang, Q,Yang, YG,et al. Efficient Perovskite Light-Emitting Diodes via Tuning Nanoplatelet Distribution and Crystallinity Orientation[J]. ADVANCED MATERIALS INTERFACES,2018,5(20):-. |
| APA | Zou, YT.,Huang, Q.,Yang, YG.,Ban, MY.,Li, SY.,...&Sun, BQ.(2018).Efficient Perovskite Light-Emitting Diodes via Tuning Nanoplatelet Distribution and Crystallinity Orientation.ADVANCED MATERIALS INTERFACES,5(20),-. |
| MLA | Zou, YT,et al."Efficient Perovskite Light-Emitting Diodes via Tuning Nanoplatelet Distribution and Crystallinity Orientation".ADVANCED MATERIALS INTERFACES 5.20(2018):-. |
入库方式： OAI收割
来源：上海应用物理研究所
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