Hydroxyl-oriented adsorption on concaved spherical MCM-48 particles for the formation of GaN nanorings

Hydroxyl-oriented adsorption on concaved spherical MCM-48 particles for the formation of GaN nanorings

GaN nanorings are obtained at low temperature via a MCM-48-templated solvothermal approach. A hydroxyl-oriented adsorption mechanism for the formation of nanorings on the concaved surface of spherical MCM-48 particles is suggested. Room-temperature photoluminescence (PL) spectrum of the GaN samples...

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Veröffentlicht in:Materials letters 2006-12, Vol.60 (29), p.3678-3681
Hauptverfasser: Gai, Ligang, Yu, Lili, Tian, Yan, Yang, Yongliang, Wang, Qilong, Cui, Deliang
Format: Artikel
Sprache:eng
Schlagworte:
GaN nanorings
Hydroxyl-oriented adsorption
MCM-48-templated
PL spectrum
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Zusammenfassung:GaN nanorings are obtained at low temperature via a MCM-48-templated solvothermal approach. A hydroxyl-oriented adsorption mechanism for the formation of nanorings on the concaved surface of spherical MCM-48 particles is suggested. Room-temperature photoluminescence (PL) spectrum of the GaN samples shows a broad BL band centered at 397 nm (3.13 eV), which is ascribed to the defects or surface states.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2006.03.105