Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Ej Thrush"'
Publikováno v:
Microscopy of Semiconducting Materials 2003 ISBN: 9781351074636
Microscopy of Semiconducting Materials 2003
Microscopy of Semiconducting Materials 2003
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e4b4d04fb6c620a35f33b86f6190dad
https://doi.org/10.1201/9781351074636-65
https://doi.org/10.1201/9781351074636-65
Publikováno v:
2017 14th China International Forum on Solid State Lighting: International Forum on Wide Bandgap Semiconductors China (SSLChina: IFWS).
In this study, the degradation mechanism of InGaN/GaN laser diodes has been investigated using cross-sectional electron beam induced current (EBIC) imaging, combined with scanning electron microscopy (SEM). By comparing the EBIC images of an untested
Publikováno v:
physica status solidi c. 9:765-769
EL measurements have been made on a number of commercial LEDs as a function of drive current density “J” and temperature “T”. For one type of LED, (sample A), the magnitude of the peak in quantum efficiency (QE) is almost independent of tempe
Modelling of group-III nitride MOVPE in the closed coupled showerhead reactor and Planetary Reactor®
Autor:
Conor Martin, A.V. Kondratyev, M. Dauelsberg, E.V. Yakovlev, H. Protzmann, Roman Talalaev, Ej Thrush, Adam Boyd, Michael Heuken
Publikováno v:
Journal of Crystal Growth. 303:318-322
The modelling and subsequent experimental validation of nitride growth processes in commercial, production scale multi-wafer reactors is investigated with focus on group-III nitride compounds GaN and InGaN. The paper also deals with the development o
Autor:
Philip Dawson, N. P. Hylton, Dandan Zhu, Darren M. Graham, Menno J. Kappers, Colin J. Humphreys, G. R. Chabrol, Ej Thrush, Clifford McAleese
Publikováno v:
Journal of Crystal Growth. 298:504-507
We have studied the optical properties of a series of InGaN/AlInGaN 10-period multiple quantum wells (MQW) with differing well thickness grown by metal-organic vapor-phase epitaxy that emit at around 380 nm. The aim of this investigation was to optim
Autor:
Michael Heuken, J. Käppeler, Adam Boyd, Conor Martin, Ej Thrush, E.V. Yakovlev, H. Protzmann, Roman Talalaev, A.V. Kondratyev, M. Dauelsberg
Publikováno v:
Journal of Crystal Growth. 298:418-424
The metalorganic vapor-phase epitaxy (MOVPE) growth of GaN from TMGa and NH3 at higher process pressures up to near-atmospheric pressure in commercial production scale multi-wafer reactors is investigated. The Planetary Reactor® and close coupled sh
Publikováno v:
physica status solidi c. 3:2145-2148
A methodology of temperature current-voltage characterisation for blue GaN-based LED is described, with emphasis on artefacts arising from self-heating at high forward currents and voltage transients at low forward currents. Examples of LEDs with Al2
Autor:
M. J. Godfrey, Menno J. Kappers, Philip Dawson, Colin J. Humphreys, Mary E. Vickers, Ej Thrush, Ranjan Datta, Darren M. Graham, P. M. F. J. Costa
Publikováno v:
physica status solidi c. 3:1970-1973
We present a study of the optical properties of a series of InGaN/GaN multiple quantum well structures, with room temperature peak emission wavelengths of 540 nm. By adopting a two-temperature growth method and designing structures to have short radi
Autor:
Ej Thrush, Menno J. Kappers, Jonathan S. Barnard, Philip Dawson, Darren M. Graham, Colin J. Humphreys, M. J. Godfrey
Publikováno v:
physica status solidi c. 3:2001-2004
The optical properties of InGaN/GaN single quantum well structures, with indium fractions of 0.15 and 0.25, have been studied under resonant excitation conditions. The low temperature (T = 6 K) photoluminescence spectra show a broad recombination fea
Autor:
Jack Mullins, Ranjan Datta, Philip Dawson, Darren M. Graham, P. M. F. J. Costa, Ej Thrush, Colin J. Humphreys, M. J. Godfrey, Menno J. Kappers, Mary E. Vickers
Publikováno v:
physica status solidi (a). 203:1729-1732
Strain relaxation has been studied for the 10-period quantum well (QW) heterostructures grown by MOVPE, In 0.16 Ga 0.84 N/GaN and In 0.2 Ga 0.8 N/GaN, both emitting with high efficiency in the blue and green regions, respectively. Additionally, a set