InGaN/GaN structures: effect of the quantum well number on the cathodoluminescent properties
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F18%3A00492160" target="_blank" >RIV/68378271:_____/18:00492160 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1002/pssb.201700464" target="_blank" >http://dx.doi.org/10.1002/pssb.201700464</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/pssb.201700464" target="_blank" >10.1002/pssb.201700464</a>
Alternative languages
Result language
angličtina
Original language name
InGaN/GaN structures: effect of the quantum well number on the cathodoluminescent properties
Original language description
Luminescence results on InGaN/GaN MQW structures with 10 and 30QWs were obtained. The aim is to increase the intensity of faster blue QW emission and decrease the luminescence of the QW defect band, showing a slower luminescence decay time, which is undesired for fast scintillator applications. We demonstrate that increasing the number of InGaN QWs is an efficient method to reach this goal. The luminescence improvement of the sample with higher number of QWs is explained by the influence of the increased size of V-pits with increased QW number. Thinner QWs on the side wall of V-pits serve as barriers which separate carriers from dislocations penetrating through the V-pit centre, supressing thus the non-radiative and radiative recombination on defects. Based on cathodoluminescence (CL) results, the scintillator structure design is discussed. Scintillator structures with higher number of QWs can take advantage of both, improved luminescence efficiency and thicker active region.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physica Status Solidi B-Basic Solid State Physics
ISSN
0370-1972
e-ISSN
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Volume of the periodical
255
Issue of the periodical within the volume
5
Country of publishing house
DE - GERMANY
Number of pages
5
Pages from-to
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UT code for WoS article
000432028400021
EID of the result in the Scopus database
2-s2.0-85038810143