Sökning: id:"swepub:oai:DiVA.org:liu-46119" >
Influence of disloc...
Influence of dislocation density on photoluminescence intensity of GaN
-
Falth, JF (författare)
-
Gurusinghe, MN (författare)
-
Liu, XY (författare)
-
visa fler...
-
Andersson, TG (författare)
-
- Ivanov, Ivan Gueorguiev (författare)
- Linköpings universitet,Tekniska högskolan,Halvledarmaterial
-
- Monemar, Bo (författare)
- Linköpings universitet,Tekniska högskolan,Halvledarmaterial
-
Yao, HH (författare)
-
Wang, SC (författare)
-
visa färre...
-
(creator_code:org_t)
- Elsevier BV, 2005
- 2005
- Engelska.
-
Ingår i: Journal of Crystal Growth. - : Elsevier BV. - 0022-0248 .- 1873-5002. ; 278:01-Apr, s. 406-410
- Relaterad länk:
-
https://urn.kb.se/re...
-
visa fler...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- The influence of dislocation density on photoluminescence intensity is investigated experimentally and compared to a model. GaN samples were grown by molecular beam epitaxy and metal-organic chemical vapour deposition. Different growth parameters and thicknesses of the layers resulted in different dislocation densities. The threading dislocation density, measured by atomic force microscopy, scanning electron microscopy and X-ray diffraction, covered a range from 5 x 10(8) to 3 x 10(10) cm(-2). Carrier concentration was measured by capacitance-voltage-, and Hall effect measurements and photoluminescence at 2 K was recorded. A model which accounts for the photoluminescence intensity as a function of dislocation density and carrier concentration in GaN is developed. The model shows good agreement with experimental results for typical GaN dislocation densities, 5 x 10(8)-1 x 10(10) cm(-2), and carrier concentrations 4 x 10(16)-1 x 10(18) cm(-3). ©, 2005 Elsevier B.V. All rights reserved.
Nyckelord
- molecular beam epitaxy
- nitrides
- defects
- photoluminescence
- capacitance-voltage measurement
- atomic force microscopy
- TECHNOLOGY
- TEKNIKVETENSKAP
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas