Zobrazeno 1 - 10
of 24
pro vyhledávání: '"J. Carlos Rojo"'
Autor:
Francesc Díaz, Oleksandr V. Bilousov, Magdalena Aguiló, J. Carlos Rojo, Joan J. Carvajal, Dominique Drouin
Publikováno v:
Microscopy and Microanalysis. 18:905-911
We present a technique for the direct deposition of nanoporous GaN particles on Si substrates without requiring any post-growth treatment. The internal morphology of the nanoporous GaN particles deposited on Si substrates by using a simple chemical v
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f83312451afbb2112cbb1dbc9836da80
https://doi.org/10.1017/s1431927612001134
https://doi.org/10.1017/s1431927612001134
Autor:
Joan J. Carvajal, J. Carlos Rojo
Publikováno v:
Crystal Growth & Design. 9:320-326
The influence of different parameters, such as temperature, flow rate of NH3, and pressure, in the crystal growth process of GaN micron-size nanoporous particles through the direct reaction of Ga and NH3 has been studied. Temperature influences poros
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::838e49d8c9b9d96c4298428219e70df7
https://doi.org/10.1021/cg800498y
https://doi.org/10.1021/cg800498y
Publikováno v:
Chemistry of Materials. 19:6543-6547
Er-doped GaN submicron rods have been synthesized on silicon (001) by the direct reaction of gallium and ammonia in a CVD system. Green and red emissions at room temperature coming from the rods with excitation below the energy of the bandgap of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b09b2885d7d8dc7030eda49baf54a30
https://doi.org/10.1021/cm702441y
https://doi.org/10.1021/cm702441y
Autor:
Daniel D. Koleske, J. W. Yang, J. Carlos Rojo, R. Gaska, M.A. Khan, Michael Shur, Leo J. Schowalter
Publikováno v:
Journal of Crystal Growth. 240:508-512
A comparative study of epitaxy of AlN, GaN and their alloys, grown on c -axis and off-axis substrates of single-crystal aluminum nitride has been carried out. Growth on off-axis (>30°) substrates appears to result in rough surfaces and the absence o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a36ab7d0dc442882da9494fc012c7e65
https://doi.org/10.1016/s0022-0248(02)01078-3
https://doi.org/10.1016/s0022-0248(02)01078-3
Autor:
Kenneth E. Morgan, J. Carlos Rojo, Michael Dudley, Glen A. Slack, Balaji Raghothamachar, Leo J. Schowalter
Publikováno v:
Journal of Crystal Growth. 231:317-321
High-quality, bulk aluminum nitride crystal grains exceeding 1 cm in dimension have been obtained using a self-seeded sublimation–recondensation growth technique at 0.9 mm/h driving rate. X-ray double crystal diffraction and topography show a full-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c38033ade74999b30e66e893f7c70bf
https://doi.org/10.1016/s0022-0248(01)01452-x
https://doi.org/10.1016/s0022-0248(01)01452-x
Autor:
Leo J. Schowalter, Nikolai Yakolev, Glen A. Slack, Katherine Dovidenko, Ishwara B. Bhat, J. Carlos Rojo, Y. Shusterman, R. Wang
Publikováno v:
MRS Internet Journal of Nitride Semiconductor Research. 5:445-451
Large (up to 10mm diameter) aluminum nitride (AlN) boules have been grown by the sublimation-recondensation method to study the preparation of high-quality single crystal substrates. The growth mechanism of the boules has been studied using AFM. It h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b7695cefe525d8cf6d7dbe54de739d5a
https://doi.org/10.1557/s1092578300004622
https://doi.org/10.1557/s1092578300004622
Publikováno v:
Journal of Crystal Growth. 200:329-334
A modification of the Czochralski growth system consisting of a circular disk attached to the pulling rod has been used during the shouldering of Bi12SiO20 single crystals. Experimental results show significant changes to the melt–crystal interface
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d449d331f65446e12f666329a0c0713
https://doi.org/10.1016/s0022-0248(98)01250-0
https://doi.org/10.1016/s0022-0248(98)01250-0
On the formation of rotational spoke patterns during the Czochralski growth of bismuth silicon oxide
Autor:
Jeffrey J. Derby, J. Carlos Rojo
Publikováno v:
Journal of Crystal Growth. :154-160
High-resolution calculations are performed using a parallel finite element method to simulate combined rotational and buoyant flows of molten bismuth silicon oxide during Czochralski crystal growth. For the first time, spoke patterns are predicted al
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5582b66b2cee29d5d8d55df5694e8d41
https://doi.org/10.1016/s0022-0248(98)01084-7
https://doi.org/10.1016/s0022-0248(98)01084-7
Publikováno v:
Experts@Minnesota
Scopus-Elsevier
Scopus-Elsevier
We describe massively parallel finite element compulations of fluid dynamics for several crystal growth systems. Examples are presented of how large-scale numerical simulations have been used to gain insights to the workings of several processes, spe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8bbc41dae9a1be8a42f15e5be431822d
https://doi.org/10.1080/10618569908940827
https://doi.org/10.1080/10618569908940827
Autor:
J. Carlos Rojo, Douglas M. Ruthven
Publikováno v:
The Canadian Journal of Chemical Engineering. 68:795-798
A simple analytic solution has been derived for the temperature response of a non-isothermal adsorption column in which a small concentration of an irreversibly adsorbed species is removed. The model is shown to provide a reasonable representation of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a1c7f8b696997878cfd78fd257cad28
https://doi.org/10.1002/cjce.5450680509
https://doi.org/10.1002/cjce.5450680509