DICP OpenIR
Biexciton Auger recombination in mono-dispersed, quantum-confined CsPbBr3 perovskite nanocrystals obeys universal volume-scaling
Li, Yulu1,2,3; Ding, Tao2,3; Luo, Xiao2,3; Chen, Zongwei2,3; Liu, Xue2,3; Lu, Xin1; Wu, Kaifeng2,3
Corresponding AuthorLu, Xin(xinlu@xmu.edu.cn) ; Wu, Kaifeng(kwu@dicp.ac.cn)
Keywordperovskite nanocrystals Auger recombination biexciton volume-scaling ultrafast spectroscopy
Source PublicationNANO RESEARCH
2019-03-01
ISSN1998-0124
DOI10.1007/s12274-018-2266-7
Volume12Issue:3Pages:619-623
Funding ProjectMinistry of Science and Technology of China[2018YFA028703] ; National Natural Science Foundation of China[21773239]
Funding OrganizationMinistry of Science and Technology of China ; Ministry of Science and Technology of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Ministry of Science and Technology of China ; Ministry of Science and Technology of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Ministry of Science and Technology of China ; Ministry of Science and Technology of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Ministry of Science and Technology of China ; Ministry of Science and Technology of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS KeywordDEPENDENT STOKES SHIFT ; SIZE ; EMISSION ; EXCITONS ; ABSORPTION ; DYNAMICS ; BLINKING ; ORIGIN ; DOTS ; PBSE
AbstractAuger 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.
Language英语
Funding OrganizationMinistry of Science and Technology of China ; Ministry of Science and Technology of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Ministry of Science and Technology of China ; Ministry of Science and Technology of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Ministry of Science and Technology of China ; Ministry of Science and Technology of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Ministry of Science and Technology of China ; Ministry of Science and Technology of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS IDWOS:000458992000020
PublisherTSINGHUA UNIV PRESS
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/165953
Collection中国科学院大连化学物理研究所
Corresponding AuthorLu, Xin; Wu, Kaifeng
Affiliation1.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
Recommended Citation
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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