Biexciton auger recombination in mono-dispersed, quantum-confined cspbbr3 perovskite nanocrystals obeys universal volume-scaling
文献类型：期刊论文
| 作者 | Li, Yulu1,2,3; Ding, Tao2,3; Luo, Xiao2,3; Chen, Zongwei2,3; Liu, Xue2,3; Lu, Xin1; Wu, Kaifeng2,3 |
| 刊名 | Nano research
 |
| 出版日期 | 2019-03-01 |
| 卷号 | 12期号:3页码:619-623 |
| 关键词 | Perovskite nanocrystals Auger recombination Biexciton Volume-scaling Ultrafast spectroscopy |
| ISSN号 | 1998-0124 |
| DOI | 10.1007/s12274-018-2266-7 |
| 通讯作者 | Lu, xin(xinlu@xmu.edu.cn) ; Wu, kaifeng(kwu@dicp.ac.cn) |
| 英文摘要 | Auger recombination has been a long-standing obstacle to many prospective applications of colloidal quantum dots (qds) ranging from lasing, light-emitting diodes to bio-labeling. as such, understanding the physical underpinnings and scaling laws for auger recombination is essential to these applications. previous studies of biexciton auger recombination in various qds established a universal scaling of biexciton lifetime ((xx)) with qd volume (v ): (xx) = v. however, recent measurements on perovskite nanocrystals (ncs), an emerging class of enablers for light harvesting and emitting applications, showed significant deviations from this universal scaling law, likely because the measured ncs are weakly-confined and also have relatively broad size-distributions. here we study biexciton auger recombination in mono-dispersed (size distributions within 1.7%-9.0%), quantum-confined cspbbr3 ncs (with confinement energy up to 410 mev) synthesized using a latest approach based on thermodynamic equilibrium control. our measurements clearly reproduce the volume-scaling of (xx) in confined cspbbr3 qds. however, the scaling factor (0.085 +/- 0.001 ps/nm(3)) is one order of magnitude lower than that reported for cdse and pbse qds (1.00 +/- 0.05 ps/nm(3)), suggesting unique mechanisms enhancing auger recombination rate in perovskite ncs. |
| WOS关键词 | DEPENDENT STOKES SHIFT ; SIZE ; EMISSION ; EXCITONS ; ABSORPTION ; DYNAMICS ; BLINKING ; ORIGIN ; DOTS ; PBSE |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS类目 | Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied |
| 语种 | 英语 |
| WOS记录号 | WOS:000458992000020 |
| 出版者 | TSINGHUA UNIV PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2372745 |
| 专题 | 大连化学物理研究所 |
| 通讯作者 | Lu, Xin; Wu, Kaifeng |
| 作者单位 | 1.Xiamen Univ, Coll Chem & Chem Engn, Dept Chem, Xiamen 361005, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, Dynam Res Ctr Energy & Environm Mat, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Yulu,Ding, Tao,Luo, Xiao,et al. Biexciton auger recombination in mono-dispersed, quantum-confined cspbbr3 perovskite nanocrystals obeys universal volume-scaling[J]. Nano research,2019,12(3):619-623. |
| APA | Li, Yulu.,Ding, Tao.,Luo, Xiao.,Chen, Zongwei.,Liu, Xue.,...&Wu, Kaifeng.(2019).Biexciton auger recombination in mono-dispersed, quantum-confined cspbbr3 perovskite nanocrystals obeys universal volume-scaling.Nano research,12(3),619-623. |
| MLA | Li, Yulu,et al."Biexciton auger recombination in mono-dispersed, quantum-confined cspbbr3 perovskite nanocrystals obeys universal volume-scaling".Nano research 12.3(2019):619-623. |
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来源：大连化学物理研究所
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