New solvothermal routes for GaN nanocrystals

被引:76
作者
Sardar, K
Rao, CNR [1 ]
机构
[1] Jawaharlal Nehru Ctr Adv Sci Res, Chem & Phys Mat Unit, Bangalore 560064, Karnataka, India
[2] Indian Inst Sci, Solid State & Struct Chem Unit, Bangalore 560012, Karnataka, India
关键词
D O I
10.1002/adma.200306050
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
GaN nanocrystals (see Figure) of hexagonal structure and varying diameters have been prepared by the reaction of hexamethyldisilazane (HMDS) with gallium cupferron or GaCl3 under solvothermal conditions. The nanocrystals show a size-dependent photoluminescence band in the 260-320 nm region, characteristic of quantum confinement.
引用
收藏
页码:425 / +
页数:6
相关论文
共 20 条
[1]   Influence of precursor route on the photoluminescence of bulk nanocrystalline gallium nitride [J].
Coffer, JL ;
Johnson, MA ;
Zhang, LB ;
Wells, RL ;
Janik, JF .
CHEMISTRY OF MATERIALS, 1997, 9 (12) :2671-+
[2]   The investigation of properties of silicon nitride films obtained by RPECVD from hexamethyldisilazane [J].
Fainer, NI ;
Rumyantsev, YM ;
Kosinova, ML ;
Yurjev, GS ;
Maximovskii, EA ;
Kuznetsov, FA .
APPLIED SURFACE SCIENCE, 1997, 113 :614-617
[3]   Detonations of gallium azides: A simple route to hexagonal GaN nanocrystals [J].
Frank, AC ;
Stowasser, F ;
Sussek, H ;
Pritzkow, H ;
Miskys, CR ;
Ambacher, O ;
Giersig, M ;
Fischer, RA .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1998, 120 (14) :3512-3513
[4]  
Frank AC, 1998, PHYS STATUS SOLIDI A, V165, P239, DOI 10.1002/(SICI)1521-396X(199801)165:1<239::AID-PSSA239>3.0.CO
[5]  
2-M
[6]   Optical and microstructural characterization of chemically synthesized gallium nitride nanopowders [J].
Gonsalves, KE ;
Rangarajan, SP ;
Carlson, G ;
Kumar, J ;
Yang, K ;
Benaissa, M ;
JoseYacaman, M .
APPLIED PHYSICS LETTERS, 1997, 71 (15) :2175-2177
[7]   Solvothermal azide decomposition route to GaN nanoparticles, nanorods, and faceted crystallites [J].
Grocholl, L ;
Wang, JJ ;
Gillan, EG .
CHEMISTRY OF MATERIALS, 2001, 13 (11) :4290-4296
[8]   Gallium nitride synthesis from sodium azide using iodine as a heat sink and diluent [J].
Hu, JQ ;
Deng, B ;
Zhang, WX ;
Tang, KB ;
Qian, YT .
CHEMICAL PHYSICS LETTERS, 2002, 351 (3-4) :229-234
[9]   Observation of quantum confined excited states of GaN nanocrystals [J].
Leppert, VJ ;
Zhang, CJ ;
Lee, HWH ;
Kennedy, IM ;
Risbud, SH .
APPLIED PHYSICS LETTERS, 1998, 72 (23) :3035-3037
[10]  
Manz A, 2000, ADV MATER, V12, P569, DOI 10.1002/(SICI)1521-4095(200004)12:8<569::AID-ADMA569>3.0.CO