DICP OpenIR
Subject Area物理化学
Visualizing Carrier Diffusion in Individual Single-Crystal Organolead Halide Perovskite Nanowires and Nanoplates
Tian, Wenming1; Zhao, Chunyi1,2; Leng, Jing1; Gui, Rongrong1; Jin, Shenge1; Jin SY(金盛烨)
Source PublicationJOURNAL OF THE AMERICAN CHEMICAL SOCIETY
2015-10-07
DOI10.1021/jacs.5b08045
Volume137Issue:39Pages:12458-12461
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Multidisciplinary
WOS Research AreaChemistry
WOS KeywordSOLAR-CELLS ; CHARGE-CARRIERS ; EFFICIENCY ; CH3NH3PBI3 ; TRANSPORT ; LENGTHS ; GROWTH ; PHOTOLUMINESCENCE ; RECOMBINATION ; PASSIVATION
AbstractSingle-crystal CH3NH3PbX3 (X = I-, Cl-, Br-) perovskite nanowires (NWs) and nanoplates (NPs), which demonstrate ultracompact sizes and exceptional photophysical properties, offer promises for applications in nanoscale photonics and optoelectronics. However, traditional electronic and transient techniques are limited by the dimensions of the samples, and characterizations of the carrier behavior (diffusion coefficient, charge mobility and diffusion length) in these NWs and NPs are extremely difficult. Herein, we report the direct visualization of the carrier diffusion process in individual single-crystal CH3NH3PbI3 and CH3NH3PbBr3 NWs and NPs using time-resolved and photoluminescence-scanned imaging microscopy. We report the diffusion coefficient (charge motility), which varies significantly between different NWs and NPs, ranging from 1.59 to 2.41 cm(2) s(-1) (56.4 to 93.9 cm(2) V-1 s(-1)) for CH3NH3PbI3 and 0.50 to 1.44 cm(2) s(-1) (19.4 to 56.1 cm(2) V-1 s(-1)) for CH3NH3PbBr3 and find this variation is independent of the shape and size of the sample. The average diffusion length is 14.0 +/- 5.1 mu m for CH3NH3PbI3 and 6.0 +/- 1.6 mu m for CH3NH3PbBr3. These results provide information that is essential for the practical applications of the single-crystal perovskite NWs and NPs, and the imaging microscopy may also be applicable to other optoelectronic materials.
Language英语
WOS IDWOS:000362628300010
Citation statistics
Cited Times:104[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/143732
Collection中国科学院大连化学物理研究所
Corresponding AuthorJin SY(金盛烨)
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
2.Dalian Univ Technol, Sch Phys & Optoelect Engn, Dalian 116024, Peoples R China
Recommended Citation
GB/T 7714
Tian, Wenming,Zhao, Chunyi,Leng, Jing,et al. Visualizing Carrier Diffusion in Individual Single-Crystal Organolead Halide Perovskite Nanowires and Nanoplates[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2015,137(39):12458-12461.
APA Tian, Wenming,Zhao, Chunyi,Leng, Jing,Gui, Rongrong,Jin, Shenge,&金盛烨.(2015).Visualizing Carrier Diffusion in Individual Single-Crystal Organolead Halide Perovskite Nanowires and Nanoplates.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,137(39),12458-12461.
MLA Tian, Wenming,et al."Visualizing Carrier Diffusion in Individual Single-Crystal Organolead Halide Perovskite Nanowires and Nanoplates".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 137.39(2015):12458-12461.
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