Zobrazeno 1 - 9
of 9
pro vyhledávání: '"M. B. Ullah"'
Autor:
M. B. Ullah, Nastassja Lewinski, Ümit Özgür, Vitaliy Avrutin, Lynn E. Secondo, Hadis Morkoç, Erdem Topsakal, Tanin Izadi
Publikováno v:
Toxicology Research. 7:754-759
This study evaluated the cytocompatibility of single- and poly-crystalline ZnO thin films using extract and direct contact methods. Exposure to poly-crystalline ZnO extract resulted in reduced cell viability, on average 82%/70% as measured by MTS/LDH
Publikováno v:
Journal of Crystal Growth. 467:145-149
Owing to its large bandgap covering the UV region of the optical spectrum, the quaternary BeMgZnO is of interest, particularly the collective effect Be and Mg fluxes on the solid composition. Incorporation of Be, Mg, and Zn in the wurtzite BeMgZnO qu
Autor:
M. B. Ullah, Ümit Özgür, Hadis Morkoç, Ryan B. Green, Mykyta Toporkov, Vitaliy Avrutin, Erdem Topsakal
Publikováno v:
Microwave and Optical Technology Letters. 59:773-777
Quaternary BeMgZnO by plasma-enhanced molecular beam epitaxy for BeMgZnO/ZnO heterostructure devices
Publikováno v:
SPIE Proceedings.
We investigated the crystal structure, growth kinetics and electrical properties of BeMgZnO/ZnO heterostructures grown by Molecular Beam Epitaxy (MBE). Transmission Electron Microscopy (TEM) studies revealed that incorporation of Mg into the BeZnO so
Autor:
Morteza Monavarian, Mykyta Toporkov, Si Qian Li, Vitaliy Avrutin, Saikat Das, Ümit Özgür, Hadis Morkoç, M. B. Ullah, Pierre Ruterana
Publikováno v:
physica status solidi (RRL) - Rapid Research Letters. 10
Autor:
Hadis Morkoç, Tanner A. Nakagawara, Mykyta Toporkov, Shopan Hafiz, Vitaliy Avrutin, M. B. Ullah, Ümit Özgür
Publikováno v:
Oxide-based Materials and Devices VII.
Owing to wide range bandgap tunability to more than 5 eV, the quaternary (Be,Mg)ZnO solid solutions are attractive for a variety of UV optoelectronic applications, inclusive of solar blind photodetectors, and intersubband transition devices. The mutu
Autor:
Julius Kurniawan Tang, M. B. Ullah
Publikováno v:
Architectural Science Review. 46:411-418
The daylight factor approach, based the assumption of uniform sky luminance distribution, has served the purpose of daylighting design in buildings for a long time. With the availability of cheaper and abundant computing powers, it is now possible to
Publikováno v:
Applied Physics Letters. 111:182101
Zn-polar BeMgZnO/ZnO heterostructures grown by molecular beam epitaxy on high resistivity GaN templates producing high-density two-dimensional electron gas (2DEG) are investigated. This is motivated by the need to reach plasmon-longitudinal optical (
Autor:
Shopan Hafiz, Hadis Morkoç, Ümit Özgür, Ismail Altuntas, M. B. Ullah, Vitaliy Avrutin, Tanner A. Nakagawara
Publikováno v:
Journal of Applied Physics. 121:185704
WOS: 000401364700031
We studied the effect of the substrate temperature, in the range from 450 degrees C to 500 degrees C, on the required Zn to (Be + Mg) flux ratio for plasma-assisted molecular beam epitaxy growth of O-polar BexMgyZn1-x-yO on
We studied the effect of the substrate temperature, in the range from 450 degrees C to 500 degrees C, on the required Zn to (Be + Mg) flux ratio for plasma-assisted molecular beam epitaxy growth of O-polar BexMgyZn1-x-yO on