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Journal article
A Noble-Transition Alloy Excels at Hot-Carrier Generation in the Near Infrared
Advanced materials (Weinheim), v 32(23), pp e1906478-n/a
01 Jun 2020
PMID: 32347620
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Above-equilibrium "hot"-carrier generation in metals is a promising route to convert photons into electrical charge for efficient near-infrared optoelectronics. However, metals that offer both hot-carrier generation in the near-infrared and sufficient carrier lifetimes remain elusive. Alloys can offer emergent properties and new design strategies compared to pure metals. Here, it is shown that a noble-transition alloy, AuxPd1-x, outperforms its constituent metals concerning generation and lifetime of hot carriers when excited in the near-infrared. At optical fiber wavelengths (e.g., 1550 nm), Au50Pd50 provides a 20-fold increase in the number of approximate to 0.8 eV hot holes, compared to Au, and a threefold increase in the carrier lifetime, compared to Pd. The discovery that noble-transition alloys can excel at hot-carrier generation reveals a new material platform for near-infrared optoelectronic devices.
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Details
- Title
- A Noble-Transition Alloy Excels at Hot-Carrier Generation in the Near Infrared
- Creators
- Sara K. F. Stofela - Louisiana State UniversityOrhan Kizilkaya - Center for Advanced Microstructures and Devices, Louisiana State University, Baton Rouge, LA 70806, USA.Benjamin T. Diroll - Argonne National LaboratoryTiago R. Leite - Louisiana State UniversityMohammad M. Taheri - Drexel UniversityDaniel E. Willis - Louisiana State UniversityJason B. Baxter - Drexel UniversityWilliam A. Shelton - Louisiana State UniversityPhillip T. Sprunger - Louisiana State UniversityKevin M. McPeak - Louisiana State University
- Publication Details
- Advanced materials (Weinheim), v 32(23), pp e1906478-n/a
- Publisher
- Wiley
- Number of pages
- 8
- Grant note
- DE-AC02-06CH11357 / U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences; United States Department of Energy (DOE) 210025/2014-0 / Brazilian National Council for Scientific and Technological Development (CNPq) organization; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPQ) DMR-1507988; CHE-1708991 / National Science Foundation; National Science Foundation (NSF)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemical and Biological Engineering
- Web of Science ID
- WOS:000529166700001
- Scopus ID
- 2-s2.0-85083999011
- Other Identifier
- 991019169000804721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Chemistry, Multidisciplinary
- Chemistry, Physical
- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology
- Physics, Applied
- Physics, Condensed Matter