Amplified Spontaneous Emission Based on 2D Ruddlesden-Popper Perovskites
文献类型：期刊论文
| 作者 | Li, Meili1,2; Gao, Qinggang3; Liu, Peng1,2; Liao, Qing3; Zhang, Haihua4; Yao, Jiannian4; Hu, Wenping1,2; Wu, Yishi4; Fu, Hongbing1,2,3 |
| 刊名 | ADVANCED FUNCTIONAL MATERIALS
 |
| 出版日期 | 2018-04-25 |
| 卷号 | 28期号:17 |
| ISSN号 | 1616-301X |
| 关键词 | 2d-ruddlesden-popper Perovskites Amplified Spontaneous Emission Energy Cascades Energy Transfer Quantum-wells |
| DOI | 10.1002/adfm.201707006 |
| 英文摘要 | 2D Ruddlesden-Popper perovskites (RPPs) are a class of quantum-well (QW) materials, composed of layered perovskite QWs encapsulated between two hydrophobic organic layers. Different from widely investigated 3D-perovskites with free carriers at room temperature, 2D-RPPs exhibit strongly bound electron-hole pairs (excitons) for high-performance solar cells and light emitting diodes (LEDs). Herein, it is reported that self-organized multiple QWs in 2D-RPP thin films naturally form an energy cascade, which enables an ultrafast energy transfer process from higher energy-bandgap QWs to lower energy-bandgap QWs. Therefore, photoexcitations are concentrated on lower-bandgap QWs, facilitating the build-up of population inversion. Room-temperature amplified spontaneous emission (ASE) from 2D-RPP thin films is achieved at dramatically low thresholds, with gain coefficients as high as >300 cm(-1), and stoichiometrically tunable ASE wavelengths from visible to near-infrared spectral range (530-810 nm). In view of the high efficiency reported for LEDs, these solution-processed 2D-RPP thin films may hold the key to realize electrically driven lasers. |
| 语种 | 英语 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| WOS记录号 | WOS:000430658300016 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/46233]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Wu, Yishi; Fu, Hongbing |
| 作者单位 | 1.Tianjin Univ, Sch Sci, Dept Chem, Tianjin Key Lab Mol Optoelect Sci, Tianjin 300072, Peoples R China 2.Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China 3.Capital Normal Univ, Beijing Key Lab Opt Mat & Photon Device, Dept Chem, Beijing 100048, Peoples R China 4.Chinese Acad Sci, BNLMS, Inst Chem, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Meili,Gao, Qinggang,Liu, Peng,et al. Amplified Spontaneous Emission Based on 2D Ruddlesden-Popper Perovskites[J]. ADVANCED FUNCTIONAL MATERIALS,2018,28(17). |
| APA | Li, Meili.,Gao, Qinggang.,Liu, Peng.,Liao, Qing.,Zhang, Haihua.,...&Fu, Hongbing.(2018).Amplified Spontaneous Emission Based on 2D Ruddlesden-Popper Perovskites.ADVANCED FUNCTIONAL MATERIALS,28(17). |
| MLA | Li, Meili,et al."Amplified Spontaneous Emission Based on 2D Ruddlesden-Popper Perovskites".ADVANCED FUNCTIONAL MATERIALS 28.17(2018). |
入库方式： OAI收割
来源：化学研究所
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