Defect-related optical bandgap narrowing and visible photoluminescence of hydrothermal-derived SnO2 nanoparticles

被引:13
作者
Chen, Changzhao [1 ]
Zhang, Wuqiong [1 ]
Li, Yang [1 ]
Cai, Chuangbing [2 ]
机构
[1] Anhui Univ Sci & Technol, Sch Mech & Optoelect, Huainan 232001, Peoples R China
[2] Shanghai Univ, Shanghai Key Lab High Temp Superconductors, Shanghai 200444, Peoples R China
基金
中国国家自然科学基金;
关键词
LOW-TEMPERATURE PHOTOLUMINESCENCE; THIN-FILMS; THERMAL EVAPORATION; NANOCRYSTALS; NANOWIRES; SURFACE; LUMINESCENCE; NANOBELTS; NANORODS; SPECTRA;
D O I
10.1007/s10854-017-7809-2
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Tin oxide (SnO2) nanoparticles are fabricated by a novel hydrothermal route using H2O2 as oxidizer without adding any corrosive acids or bases. The morphology, composition, and microstructure are characterized by transmission electron microscopy, X-ray diffraction (XRD) and Raman spectra. XRD analysis reveals the formation of single phase rutile type tetragonal structure of all samples which is further supported by Raman studies. The average crystallite size is observed to vary from 2.8 to 4.2 nm as the reacting temperature increases from 120 to 180 A degrees C, suggesting the promotion of crystal growth with increasing temperature. Raman spectroscopy measurement presents the existence of the defect modes, of which the mode at about 565 cm(-1) is identified to relate to oxygen vacancies as this mode becomes more prominent in the as-grown sample. Unusual optical band gap narrowing and the excitation wavelength dependent visible luminescence are observed, and both are supposed to be induced by the intrinsic defects. The photoluminescence (PL) spectra of all samples consist of two defect-related subbands, i.e., orange and blue luminescence bands. The two subbands are attributed to optical transitions in oxygen vacancies and some intrinsic surface states, respectively. Spectral analysis suggests that the excitation wavelength dependences of the two subbands are due to a distribution of the band gap of the nanoparticles induced by the internal strain, defect concentration as well as the quantum confinement effect. This work provides a feasible route to modulate the band gap and defect emissions and a good understanding of the PL behavior in the present SnO2 nanoparticles.
引用
收藏
页码:18603 / 18609
页数:7
相关论文
共 39 条
[1]   Band gap narrowing and fluorescence properties of nickel doped SnO2 nanoparticles [J].
Ahmed, Arham S. ;
Muhamed, Shafeeq M. ;
Singla, M. L. ;
Tabassum, Sartaj ;
Naqvi, Alim H. ;
Azam, Ameer .
JOURNAL OF LUMINESCENCE, 2011, 131 (01) :1-6
[2]   Effect of Mn doping on the structural and optical properties of SnO2 nanoparticles [J].
Azam, Ameer ;
Ahmed, Arham S. ;
Habib, Sami S. ;
Naqvi, A. H. .
JOURNAL OF ALLOYS AND COMPOUNDS, 2012, 523 :83-87
[3]   The surface and materials science of tin oxide [J].
Batzill, M ;
Diebold, U .
PROGRESS IN SURFACE SCIENCE, 2005, 79 (2-4) :47-154
[4]   Facile synthesis of a crystalline, high-surface-area SnO2 aerogel [J].
Baumann, TF ;
Kucheyev, SO ;
Gash, AE ;
Satcher, JH .
ADVANCED MATERIALS, 2005, 17 (12) :1546-1548
[5]   Optical and structural properties of Nd doped SnO2 powder fabricated by the sol-gel method [J].
Bouras, K. ;
Rehspringer, J. -L. ;
Schmerber, G. ;
Rinnert, H. ;
Colis, S. ;
Ferblantier, G. ;
Balestrieri, M. ;
Ihiawakrim, D. ;
Dinia, A. ;
Slaoui, A. .
JOURNAL OF MATERIALS CHEMISTRY C, 2014, 2 (39) :8235-8243
[6]   Structural, optical and electrical properties of Nd-doped SnO2 thin films fabricated by reactive magnetron sputtering for solar cell devices [J].
Bouras, Karima ;
Schmerber, Guy ;
Rinnert, Herve ;
Aureau, Damien ;
Park, Hyeonwook ;
Ferblantier, Gerald ;
Colis, Silviu ;
Fix, Thomas ;
Park, Chinho ;
Kim, Woo Kyoung ;
Dinia, Aziz ;
Slaoui, Abdelilah .
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2016, 145 :134-141
[7]   Formation mechanism and photoluminescence of AlN nanowhiskers [J].
Chen, H. T. ;
Wu, X. L. ;
Xiong, X. ;
Zhang, W. C. ;
Xu, L. L. ;
Zhu, J. ;
Chu, Paul K. .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2008, 41 (02)
[8]   A novel hydrothermal route to synthesize solid SnO2 nanospheres and their photoluminescence property [J].
Chen, H. T. ;
Wu, X. L. ;
Zhang, Y. Y. ;
Zhu, J. ;
Cheng, Y. C. ;
Chu, Paul K. .
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2009, 97 (03) :581-585
[9]   Photoluminescence of undoped and Ce-doped SnO2 thin films deposited by sol-gel-dip-coating method [J].
Chen, Shuai ;
Zhao, Xiaoru ;
Xie, Haiyan ;
Liu, Jinming ;
Duan, Libing ;
Ba, Xiaojun ;
Zhao, Jianlin .
APPLIED SURFACE SCIENCE, 2012, 258 (07) :3255-3259
[10]   Increasing Solar Absorption for Photocatalysis with Black Hydrogenated Titanium Dioxide Nanocrystals [J].
Chen, Xiaobo ;
Liu, Lei ;
Yu, Peter Y. ;
Mao, Samuel S. .
SCIENCE, 2011, 331 (6018) :746-750