Enhanced Size Selection in Two-Photon Excitation for CsPbBr3 Perovskite Nanocrystals
文献类型：期刊论文
| 作者 | Messing, Maria E.5,6; Chen, Junsheng2,3,4; Chabera, Pavel2,3; Pascher, Torbjorn2,3; Schaller, Richard7,8; Canton, Sophie9,10; Zheng, Kaibo1,2,3; Pullerits, Tonu2,3 |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY LETTERS
 |
| 出版日期 | 2017-10-19 |
| 卷号 | 8期号:20页码:5119-5124 |
| 英文摘要 | Cesium lead bromide (CsPbBr3) perovskite nanocrystals (NCs), with large two-photon absorption (TPA) cross-section and bright photoluminescence (PL), have been demonstrated as stable two-photon-pumped lasing medium. With two-photon excitation, red-shifted PL spectrum and increased PL lifetime is observed compared with one-photon excitation. We have investigated the origin of such difference using time resolved laser spectroscopies. We ascribe the difference to the enhanced size selection of NCs by two-photon excitation. Because of inherent nonlinearity, the size dependence of absorption cross-section under TPA is stronger. Consequently, larger size NCs are preferably excited, leading to longer excited-state lifetime and red-shifted PL emission. In a broad view, the enhanced size selection in two-photon excitation of CsPbBr3 NCs is likely a general feature of the perovskite NCs and can be tuned via NC size distribution to influence their performance within NC-based nonlinear optical materials and devices. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Atomic, Molecular & Chemical |
| 研究领域[WOS] | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 关键词[WOS] | SHELL QUANTUM DOTS ; ABSORPTION CROSS-SECTION ; OPTICAL-DATA STORAGE ; STIMULATED-EMISSION ; FLUORESCENT-PROBE ; LIVE CELLS ; PHOTOLUMINESCENCE ; PHOTOSTABILITY ; EVOLUTION ; SHIFT |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000413798300024 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/149770]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Qatar Univ, Coll Engn, Gas Proc Ctr, POB 2713, Doha, Qatar 2.Lund Univ, Dept Chem Phys, POB 124, S-22100 Lund, Sweden 3.Lund Univ, NanoLund, POB 124, S-22100 Lund, Sweden 4.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China 5.Lund Univ, Solid State Phys, Box 118, S-22100 Lund, Sweden 6.Lund Univ, NanoLund, Box 118, S-22100 Lund, Sweden 7.Argonne Natl Lab, Ctr Nanoscale Mat, 9700 Cass Ave, Argonne, IL 60439 USA 8.Northwestern Univ, Dept Chem, 2145 Sheridan Rd, Evanston, IL 60208 USA 9.ELI HU Nonprofit Ltd, ELI ALPS, Dugon Ter 13, H-6720 Szeged, Hungary 10.Deutsch Elektronen Synchrotron DESY, Attosci Grp, Notkestr 85, D-22607 Hamburg, Germany |
| 推荐引用方式 GB/T 7714 | Messing, Maria E.,Chen, Junsheng,Chabera, Pavel,et al. Enhanced Size Selection in Two-Photon Excitation for CsPbBr3 Perovskite Nanocrystals[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2017,8(20):5119-5124. |
| APA | Messing, Maria E..,Chen, Junsheng.,Chabera, Pavel.,Pascher, Torbjorn.,Schaller, Richard.,...&Pullerits, Tonu.(2017).Enhanced Size Selection in Two-Photon Excitation for CsPbBr3 Perovskite Nanocrystals.JOURNAL OF PHYSICAL CHEMISTRY LETTERS,8(20),5119-5124. |
| MLA | Messing, Maria E.,et al."Enhanced Size Selection in Two-Photon Excitation for CsPbBr3 Perovskite Nanocrystals".JOURNAL OF PHYSICAL CHEMISTRY LETTERS 8.20(2017):5119-5124. |
入库方式： OAI收割
来源：大连化学物理研究所
浏览0
下载0
收藏0
其他版本
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。