Confinement Effect on Photoluminescence of Nanocrystalline ZnO Thin Films

被引：0

作者：

Arora, Manju ^{[1
]}

Singh, Santosh ^{[1
]}

Singh, Sukhvir ^{[1
]}

机构：

[1] CSIR Natl Phys Lab, New Delhi, India

来源：

16TH INTERNATIONAL WORKSHOP ON PHYSICS OF SEMICONDUCTOR DEVICES | 2012年 / 8549卷

关键词：

Quantum confinement; Photoluminescence; Nanocrystalline; ZnO; Thin films; ULTRAVIOLET PHOTOLUMINESCENCE; QUANTUM DOTS;

D O I：

10.1117/12.927415

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Nanocrystalline ZnO thin films with different morphology were grown on silicon substrate by sol-gel process using different zinc acetate sol concentrations. These films were characterized by high resolution XRD, SEM, EDS, photoluminescence (PL) and UV-VIS spectroscopic techniques to reveal their structural, morphological and optical details. The blueshift in strong free excitons recombination peak is observed as the morphology of the film changes from spindle shape to nanorods to clustering of nanorods with increase in sol concentration due to quantum confinement effect in the nc-ZnO thin films.

引用

收藏

页数：5

相关论文

共 9 条

[1] Photoluminescence properties and quantum size effect of ZnO nanoparticles confined inside a faujasite X zeolite matrix [J].

Bouvy, C. ;

Marine, W. ;

Sporken, R. ;

Su, B. L. .

CHEMICAL PHYSICS LETTERS, 2006, 428 (4-6) :312-316

[2] Temperature-dependent shifts of three emission bands for ZnO nanoneedle arrays [J].

Cao, BQ ;

Cai, WP ;

Zeng, HB .

APPLIED PHYSICS LETTERS, 2006, 88 (16)

[3] Origin of ultraviolet photoluminescence in ZnO quantum dots: Confined excitons versus surface-bound impurity exciton complexes [J].

Fonoberov, VA ;

Balandin, AA .

APPLIED PHYSICS LETTERS, 2004, 85 (24) :5971-5973

[4] Study on the quantum confinement effect on ultraviolet photoluminescence of crystalline ZnO nanoparticles with nearly uniform size [J].

Fu, Z. D. ;

Cui, Y. S. ;

Zhang, S. Y. ;

Chen, J. ;

Yu, D. P. ;

Zhang, S. L. ;

Niu, L. ;

Jiang, J. Z. .

APPLIED PHYSICS LETTERS, 2007, 90 (26)

[5] Oxygen deficiency effects on recombination lifetime and photoluminescence characteristics of ZnO thin films; correlation with crystal structure [J].

Gur, Emre ;

Tuzemen, S. ;

Meral, Kadem ;

Onganer, Y. .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2009, 94 (03) :549-554

[6] Ultraviolet photoluminescence of ZnO quantum dots sputtered at room-temperature [J].

Kiliani, Gillian ;

Schneider, Reinhard ;

Litvinov, Dimitri ;

Gerthsen, Dagmar ;

Fonin, Mikhail ;

Ruediger, Ulrich ;

Leitenstorfer, Alfred ;

Bratschitsch, Rudolf .

OPTICS EXPRESS, 2011, 19 (02) :1641-1647

[7] ZnO: Material, physics and applications [J].

Klingshirn, C. .

CHEMPHYSCHEM, 2007, 8 (06) :782-803

[8] Assorted analytical and spectroscopic techniques for the optimization of the defect-related properties in size-controlled ZnO nanowires [J].

Wong, Kin Mun ;

Fang, Yaoguo ;

Devaux, Andre ;

Wen, Liaoyong ;

Huang, Jian ;

De Cola, Luisa ;

Lei, Yong .

NANOSCALE, 2011, 3 (11) :4830-4839

[9] Synthesis and photoluminescence properties of ZnO powder by solution combustion method [J].

Zhao, Junfeng ;

Han, Zhida ;

Lu, Hongbin ;

Wang, Xuhong ;

Chen, Jianhua .

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2011, 22 (09) :1361-1365