A novel hydrothermal route to synthesize solid SnO2 nanospheres and their photoluminescence property

被引：26

作者：

Chen, H. T. ^{[1
,2
]}

Wu, X. L. ^{[1
,2
]}

Zhang, Y. Y. ^{[1
,2
]}

Zhu, J. ^{[1
,2
]}

Cheng, Y. C. ^{[1
,2
]}

Chu, Paul K. ^{[3
]}

机构：

[1] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China

[2] Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China

[3] City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R China

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2009年 / 97卷 / 03期

关键词：

NANOWIRES; NANOBELTS; NANORODS; CRYSTALLINE; GROWTH; DEPOSITION; NANOTUBES; SURFACE; SPHERES; ANODES;

D O I：

10.1007/s00339-009-5257-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Solid tin oxide (SnO2) nanospheres were fabricated via one-step hydrothermal treatment of tin foil in aqueous alkaline solutions at 180A degrees C. Based on the time-dependent experiments, the evolution behavior of Ostwald ripening is proposed to explain the formation mechanism. Besides a broad emission band at 600 nm, the SnO2 nanospheres, synthesized for 24 h, show an additional emission band at 490 nm that has a great sensitivity to the content of oxygen. Spectral examinations and analyses reveal that the two emission bands originate from the electronic states determined by the oxygen interstitials, intrinsic surface states, and oxygen vacancies.

引用

页码：581 / 585

页数：5

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