Journal article
Material Dimensionality Effects on Electron Transfer Rates Between CsPbBr3 and CdSe Nanoparticles
Nano letters, v 18(8), pp 4771-4776
08 Aug 2018
PMID: 29944381
Abstract
Films containing mixtures of zero- or two-dimensional nanostructures (quantum dots or nanoplatelets) were prepared in order to investigate the impacts of dimensionality on electronic interactions. Electron transfer from CsPbBr3 to CdSe was observed in all of the mixtures, regardless of particle dimensionality, and characterized via both static and transient absorption and photoluminescence spectroscopies. We find that mixtures containing nanoplatelets as the electron acceptor (CdSe) undergo charge transfer more rapidly than those containing quantum dots. We believe the faster charge transfer observed with nanoplatelets may arise from the extended spatial area of the CdSe nanoplatelets and/ or the continuous density of acceptor states that are present in nanoplatelets. These results bolster the use of one- or two-dimensional nanomaterials in the place of zero-dimensional quantum dots in the design of related optoelectronic devices such as solar cells, light-emitting diodes, and photocatalysts and further offer the prospect of fewer required hopping events to transport carriers due to the larger spatial extent of the particles.
Metrics
Details
- Title
- Material Dimensionality Effects on Electron Transfer Rates Between CsPbBr3 and CdSe Nanoparticles
- Creators
- Alexandra Brumberg - Northwestern UniversityBenjamin T. Diroll - Argonne National LaboratoryGeorgian Nedelcu - ETH ZurichMatthew E. Sykes - Argonne National LaboratoryYuzi Liu - Argonne National LaboratorySamantha M. Harvey - Northwestern UniversityMichael R. Wasielewski - Northwestern UniversityMaksym V. Kovalenko - Swiss Federal Laboratories for Materials Science and TechnologyRichard D. Schaller - Northwestern UniversityArgonne National Lab. (ANL), Argonne, IL (United States)
- Publication Details
- Nano letters, v 18(8), pp 4771-4776
- Publisher
- Amer Chemical Soc
- Number of pages
- 6
- Grant note
- 18614.1 PFNM-NM / Swiss Federal Commission for Technology and Innovation 306733 / European Union through the FP7 (ERC Starting Grant NANOSOLID, GA) Scientific Center for Optical and Electron Microscopy (ETH Zurich); ETH Zurich DE-AC02-06CH11357 / U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences; United States Department of Energy (DOE) DMREF-1629383 / National Science Foundation; National Science Foundation (NSF) DE-FG02-99ER14999 / Chemical Sciences, Geosciences, and Biosciences Division, Office of Basic Energy Sciences, DOE; United States Department of Energy (DOE) DGE-1324585 / National Science Foundation Graduate Research Fellowship Program; National Science Foundation (NSF)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemistry
- Web of Science ID
- WOS:000441478300021
- Scopus ID
- 2-s2.0-85049245832
- Other Identifier
- 991022053795504721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Multidisciplinary
- Chemistry, Physical
- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology
- Physics, Applied
- Physics, Condensed Matter