Zobrazeno 1 - 7
of 7
pro vyhledávání: '"A. M. Hosalli"'
Autor:
Pavel Frajtag, Nadia A. El-Masry, Tanja Paskova, A. M. Hosalli, Salah M. Bedair, Joshua P. Samberg, Peter C. Colter
Publikováno v:
Journal of Crystal Growth. 352:203-208
We report on the generation of GaN nanowires (NWs) using mask-less reactive ion etching (RIE). The NWs are believed to be the result of a high etching rate in regions where a high dislocation density is present in the GaN films grown on sapphire subs
Publikováno v:
SPIE Newsroom.
Publikováno v:
Applied Physics Letters. 105:031107
InGaN/GaN multiple quantum well (MQW) structures suffer from a high amount of compressive strain in the InGaN wells and the accompanied piezoelectric field resulting in both a blue shift in emission and a reduction of emission intensity. We report th
Autor:
Guanjun You, Jie Liu, Nadia A. El-Masry, Li Wang, A. M. Hosalli, Jian Xu, Salah M. Bedair, Zhenyu Jiang
Publikováno v:
Optics Letters. 39:1501
The mechanism behind the improved light emission properties of semipolar and nonpolar InGaN/GaN multiple quantum wells (MQWs) conformally grown over n-GaN nanowires (NWs) was studied using variable-temperature photoluminescence and time-resolved phot
Publikováno v:
Applied Physics Letters. 103:231108
We demonstrate a metalorganic chemical vapor deposition growth approach for inverting N-polar to Ga-polar GaN by using a thin inversion layer grown with high Mg flux. The introduction of this inversion layer allowed us to grow p-GaN films on N-polar
Autor:
A. M. Hosalli, D. M. Van Den Broeck, Joshua P. Samberg, Nadia A. El-Masry, D. Bharrat, Salah M. Bedair
Publikováno v:
Applied Physics Letters. 103:082106
We demonstrate gallium nitride (GaN) nanowires formation by controlling the selective and anisotropic etching of N-polar GaN in hot phosphoric acid. Nanowires of ∼109/cm,2 total height of ∼400 nm, and diameters of 170–200 nm were obtained. Thes
Autor:
Pavel Frajtag, Geoffrey K. Bradshaw, Neeraj Nepal, Salah M. Bedair, A. M. Hosalli, Nadia A. El-Masry
Publikováno v:
Applied Physics Letters. 98:143104
We demonstrate a light-emitting diode (LED) structure with multiple quantum wells (MQWs) conformally grown on semipolar and nonpolar plane facets of n-GaN nanowires (NWs), followed by deposition of fully coalesced p-GaN on these nanowires. Overgrowth