GeO2 nanowires and nanoneedles grown by thermal deposition without a catalyst

被引:62
作者
Hidalgo, P [1 ]
Méndez, B [1 ]
Piqueras, J [1 ]
机构
[1] Univ Complutense Madrid, Fac Ciencias Fis, Dept Fis Mat, E-28040 Madrid, Spain
关键词
D O I
10.1088/0957-4484/16/11/010
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Thermal treatment of compacted GeO2 powder under argon flow leads to the growth of a dense distribution of microwires and nanowires on the sample surface. Extended treatment causes the formation of more complex structures, including arrays of nanoneedles. Enhanced cathodoluminescence emission is associated with the wires and needles, which show a component at 2.72 eV not observed. for the untreated material.
引用
收藏
页码:2521 / 2524
页数:4
相关论文
共 17 条
[1]   Nano-scale GeO2 wires synthesized by physical evaporation [J].
Bai, ZG ;
Yu, DP ;
Zhang, HZ ;
Ding, Y ;
Wang, YP ;
Gal, XZ ;
Hang, QL ;
Xiong, GC ;
Feng, SQ .
CHEMICAL PHYSICS LETTERS, 1999, 303 (3-4) :311-314
[2]   The synthesis of metal oxide nanowires by directly heating metal samples in appropriate oxygen atmospheres [J].
Dang, HY ;
Wang, J ;
Fan, SS .
NANOTECHNOLOGY, 2003, 14 (07) :738-741
[3]   Cathodoluminescence of crystalline and amorphous SiO2 and GeO2 [J].
Fitting, HJ ;
Barfels, T ;
Trukhin, AN ;
Schmidt, B .
JOURNAL OF NON-CRYSTALLINE SOLIDS, 2001, 279 (01) :51-59
[4]   Growth and spatially resolved luminescence of low dimensional structures in sintered ZnO [J].
Grym, J ;
Fernández, P ;
Piqueras, J .
NANOTECHNOLOGY, 2005, 16 (06) :931-935
[5]  
Hu JQ, 2002, ADV MATER, V14, P1396, DOI 10.1002/1521-4095(20021002)14:19<1396::AID-ADMA1396>3.0.CO
[6]  
2-U
[7]  
Kim HY, 2003, REV ADV MATER SCI, V5, P220
[8]   Growth and luminescence properties of micro- and nanotubes in sintered tin oxide [J].
Maestre, D ;
Cremades, A ;
Piqueras, J .
JOURNAL OF APPLIED PHYSICS, 2005, 97 (04)
[9]   A laser ablation method for the synthesis of crystalline semiconductor nanowires [J].
Morales, AM ;
Lieber, CM .
SCIENCE, 1998, 279 (5348) :208-211
[10]   Cathodoluminescence from β-Ga2O3 nanowires -: art. no. 113112 [J].
Nogales, E ;
Méndez, B ;
Piqueras, J .
APPLIED PHYSICS LETTERS, 2005, 86 (11) :1-3