Journal article
Measurement of recombination mechanisms in mid-infrared W-superlattices
Optical materials express, Vol.12(11), pp.4261-4267
11/01/2022
DOI: 10.1364/OME.472068
Abstract
Mid-wave infrared LEDs based on 6.1 angstrom III/V semiconductors have trailed well behind visible LEDs in their wallplug efficiency. One contributing inefficiency is the low internal quantum efficiency (IQE) of emission of such materials, which is attributable to dominating nonradiative Auger and Shockley-Read-Hall recombination. However, recent work within this group has identified a W-superlattice based on 6.1 angstrom III/V semiconductors with a remarkably high IQE of 77% (8%) at 77K (300K). We present in this work two-color pump-probe, differential transmission measurements to measure the ABC recombination coefficients of this superlattice at both 77K and 300K to elucidate physical mechanisms.
Details
- Title: Subtitle
- Measurement of recombination mechanisms in mid-infrared W-superlattices
- Creators
- C. L. Bogh - University of IowaA. J. Muhowski - University of IowaM. D. Nelson - Univ Iowa, Dept Phys & Astron, Iowa CREATES, Iowa City, IA 52242 USAV. G. J. Rodgers - Univ Iowa, Dept Phys & Astron, Iowa CREATES, Iowa City, IA 52242 USAJ. P. Prineas - Univ Iowa, Dept Phys & Astron, Iowa CREATES, Iowa City, IA 52242 USA
- Resource Type
- Journal article
- Publication Details
- Optical materials express, Vol.12(11), pp.4261-4267
- Publisher
- Optica Publishing Group
- DOI
- 10.1364/OME.472068
- ISSN
- 2159-3930
- eISSN
- 2159-3930
- Number of pages
- 7
- Grant note
- Test Resource Management Center (TRMC) , Test and Evaluation/Science & Technology (T&E/S&T) Program through U.S. Army Program Executive Office for Simulation, Training and Instrumentation (PEO STRI) Test and Evaluation/Science & Technology (T&E/S&T) Program through U.S. Army Program Executive Office for Simulation, Training and Instrumentation (PEO STRI) Test Resource Management Center (TRMC)
- Language
- English
- Date published
- 11/01/2022
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984428823402771
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