Journal article
Synthesis of Type I PbSe/CdSe Dot-on-Plate Heterostructures with Near-Infrared Emission
Journal of the American Chemical Society, v 141(13), pp 5092-5096
03 Apr 2019
PMID: 30882213
Abstract
Zero-dimensional PbSe quantum dots are heterogeneously nucleated and grown onto two-dimensional zincblende CdSe nanoplatelets. Electron microscopy shows ad-grown dots predominantly decorate edges and corners of the nanoplatelets. Spectroscopic characterizations relate type I electronic alignment as demonstrated via photoluminescence excitation spectroscopy enhancement of near-infrared emission. Transient photoluminescence and absorption convey ultrafast transfer of excitons to the lower energy semiconductor dots. These structures combine benefits of large absorption cross sections of nanoplatelets and efficient near-infrared emission of PbSe with quantum confinement tuning of energy gap.
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Details
- Title
- Synthesis of Type I PbSe/CdSe Dot-on-Plate Heterostructures with Near-Infrared Emission
- Creators
- Kali R Williams - Northwestern UniversityBenjamin T Diroll - Argonne National LaboratoryNicolas E Watkins - Northwestern UniversityXue Rui - Department of PhysicsAlexandra Brumberg - Northwestern UniversityRobert F Klie - University of Illinois Urbana-ChampaignRichard D Schaller - Northwestern UniversityArgonne National Laboratory (ANL), Argonne, IL (United States)
- Publication Details
- Journal of the American Chemical Society, v 141(13), pp 5092-5096
- Publisher
- American Chemical Society
- Number of pages
- 5
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemistry
- Web of Science ID
- WOS:000463843700005
- Scopus ID
- 2-s2.0-85063391193
- Other Identifier
- 991022053795704721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Chemistry, Multidisciplinary