Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Dirk Ehrentraut"'
Autor:
Dirk Ehrentraut, Jonathan D. Cook, Rajeev T. Pakalapati, Wenkan Jiang, Derrick S. Kamber, Mark P. D'Evelyn
Publikováno v:
physica status solidi (b). 252:1069-1074
A novel, highly scalable apparatus has been employed to perform high temperature ammonothermal growth of (0001) GaN bulk crystals up to 52 mm in diameter and to a thickness of greater than 2 mm. X-ray characterization of the crystals shows excellent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56c20c3fe6661c4588b9080f1fe868cf
https://doi.org/10.1002/pssb.201451587
https://doi.org/10.1002/pssb.201451587
Autor:
Dirk Ehrentraut, Mark P. D'Evelyn, Hak Do Yoo, Rajeev T. Pakalapati, Derrick S. Kamber, Wenkan Jiang, Bradley C. Downey
Publikováno v:
Journal of Crystal Growth. 403:18-21
A novel apparatus has been employed to grow ammonothermal (0001) gallium nitride (GaN) with diameters up to 2 in. The crystals have been characterized by x-ray diffraction rocking-curve (XRC) analysis, optical and scanning electron microscopy (SEM),
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e17a3585f3d182570d1f23a240db36cd
https://doi.org/10.1016/j.jcrysgro.2014.06.002
https://doi.org/10.1016/j.jcrysgro.2014.06.002
Autor:
Yuantao Zhang, Tsuguo Fukuda, Chin Chun Ooi, Masataka Kano, Katsushi Fujii, Dirk Ehrentraut, Gregory K. L. Goh, Le Hong Quang, Takashi Matsuoka
Publikováno v:
Journal of Solid State Chemistry. 214:96-100
The aqueous synthesis of uniform single crystalline homoepitaxial zinc oxide, ZnO, and magnesium zinc oxide, Mg x Zn 1− x O, films under very low temperature conditions at T =90 °C and ambient pressure has been explored. A maximum Mg content of 1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be706897c5b9b67c87a638b5ac6dacd1
https://doi.org/10.1016/j.jssc.2013.10.008
https://doi.org/10.1016/j.jssc.2013.10.008
Autor:
Mark P. D'Evelyn, Derrick S. Kamber, Hak Do Yoo, Wenkan Jiang, Dirk Ehrentraut, Rajeev T. Pakalapati, Bradley C. Downey
Publikováno v:
ECS Transactions. 58:287-294
Soraa has developed a novel ammonothermal approach for growth of high quality, true bulk GaN crystals at a greatly reduced cost, known as SCoRA (Scalable Compact Rapid Ammonothermal). SCoRA GaN growth has been performed on seed crystals with diameter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ee536a8ba66ef742890ae53eb1b7c75
https://doi.org/10.1149/05804.0287ecst
https://doi.org/10.1149/05804.0287ecst
Autor:
Keerthiraj Namratha, I. A. Ibrahim, Kullaiah Byrappa, Masahiro Yoshimura, V. Ravishankar Rai, Jamuna Bai, Dirk Ehrentraut
Publikováno v:
Materials Focus. 2:136-142
Organics assisted ZnO nanoparticles doped with Pd (1 - 5 × 10 -7 mmol) were synthesized using novel solution processing routes. In situ surface modification was carried out by using gluconic acid as a modifier to assist the nanoparticles synthesis.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eddb189f01b6c137930094f23682a1d1
https://doi.org/10.1166/mat.2013.1065
https://doi.org/10.1166/mat.2013.1065
Autor:
Marilou Cadatal-Raduban, Yuki Minami, Hiroshi Azechi, Kohei Yamanoi, Dirk Ehrentraut, Momoko Tanaka, Nobuhiko Sarukura, T. Shimizu, Kohei Takeda, Tomoharu Nakazato, T. Fukuda, Hiroaki Nishimura, K. Sakai, Tetsuya Kawachi, Masaharu Nishikino, Ryosuke Nishi
Publikováno v:
IEEE Transactions on Nuclear Science. 59:2294-2297
We show that a hydrothermal method-grown ZnO is a potential material of an imaging device for soft X-ray laser diagnostics. The beam profile of a soft X-ray laser was evaluated by characterizing the exciton emission patterns of ZnO. The single shot i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ae7d572240b70f248f22b6fd09b4874
https://doi.org/10.1109/tns.2012.2190095
https://doi.org/10.1109/tns.2012.2190095
Autor:
Martin Nikl, Tsuguo Fukuda, Katsushi Fujii, Kullaiah Byrappa, Juergen Riegler, Dirk Ehrentraut
Publikováno v:
Progress in Crystal Growth and Characterization of Materials. 58:51-59
Crystalline zinc oxide (ZnO) has been fabricated by solvothermal techniques under quite different temperature and pressure environment stretching from sub- to supercritical conditions. Among them, one-step processing of inorganic–inorganic hybrid Z
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f8fe0cad367f30d947382ccaa566dd0
https://doi.org/10.1016/j.pcrysgrow.2011.10.001
https://doi.org/10.1016/j.pcrysgrow.2011.10.001
Publikováno v:
Journal of Crystal Growth. 320:18-22
Zinc oxide (ZnO) crystals were grown by the hydrothermal method under significantly improved conditions. Careful adjustment of critical growth conditions led the way towards ZnO crystals with extremely low ( 14 cm −3 ) lithium and potassium content
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb40ad198c48657696e01dd9abe33a6e
https://doi.org/10.1016/j.jcrysgro.2011.01.005
https://doi.org/10.1016/j.jcrysgro.2011.01.005
Autor:
Kohei Yamanoi, Dirk Ehrentraut, Tsuguo Fukuda, Nobuhiko Sarukura, Masaharu Nishikino, Tetsuya Kawachi, Momoko Tanaka, Toshihiko Shimizu, Tomoharu Nakazato, Kohei Sakai
Publikováno v:
The Review of Laser Engineering. 39:193-196
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::418b5a84ada275fe687a50b08cbf8e29
https://doi.org/10.2184/lsj.39.193
https://doi.org/10.2184/lsj.39.193
Autor:
Dirk Ehrentraut, Tsuguo Fukuda
Publikováno v:
Journal of Crystal Growth. 312:2514-2518
The acidic ammonothermal technique is used to develop a technology for production of free-standing gallium nitride (GaN) crystals to match the demand driven by the device technology for the wide-band-gap semiconductor group-III element nitrides. Here
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd0df9929a5109aa2229085b53f178a9
https://doi.org/10.1016/j.jcrysgro.2010.04.004
https://doi.org/10.1016/j.jcrysgro.2010.04.004