Effect of particle size on the UV absorbance of zinc oxide nanoparticles

被引：205

作者：

Goh, E. G. ^{[1
]}

Xu, X. ^{[1
]}

McCormick, P. G. ^{[1
]}

机构：

[1] Univ Western Australia, Sch Mech & Chem Engn, Nedlands, WA 6009, Australia

来源：

SCRIPTA MATERIALIA | 2014年 / 78-79卷

关键词：

Nanostructured materials; Zinc oxide; Modeling; Simulation; UV absorbance; ZNO QUANTUM DOTS;

D O I：

10.1016/j.scriptamat.2014.01.033

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The effect of particle size on the UV absorption of zinc oxide nanoparticles has been investigated in the size range above the quantum limit. The results show that the absorbance increases with increasing size for particle sizes of 15-40 nm. The results are evaluated in terms of intrinsic particle absorption and the number concentration of particles. It is shown that the particles become opaque for particle sizes greater than 70 nm. For larger sizes the absorbance decreases with increasing size due to the decrease in particle concentration. (C) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：49 / 52

页数：4

共 12 条

[1] PREPARATION AND CHARACTERIZATION OF QUANTUM SIZE ZINC-OXIDE - A DETAILED SPECTROSCOPIC STUDY [J].

BAHNEMANN, DW ;

KORMANN, C ;

HOFFMANN, MR .

JOURNAL OF PHYSICAL CHEMISTRY, 1987, 91 (14) :3789-3798

[2] Band gap variation of size-controlled ZnO quantum dots synthesized by sol-gel method [J].

Lin, KF ;

Cheng, HM ;

Hsu, HC ;

Lin, LJ ;

Hsieh, WF .

CHEMICAL PHYSICS LETTERS, 2005, 409 (4-6) :208-211

[3] Rapid synthesis of stable ZnO quantum dots [J].

Mädler, L ;

Stark, WJ ;

Pratsinis, SE .

JOURNAL OF APPLIED PHYSICS, 2002, 92 (11) :6537-6540

[4] Synthesis and growth of ZnO nanoparticles [J].

Meulenkamp, EA .

JOURNAL OF PHYSICAL CHEMISTRY B, 1998, 102 (29) :5566-5572

[5]

Palmer B.R., 2000, J COATING TECHNOL, V62, P789

[6] Effect of particle size on the reactivity of quantum size ZnO nanoparticles and charge-transfer dynamics with adsorbed catechols [J].

Ramakrishna, G ;

Ghosh, HN .

LANGMUIR, 2003, 19 (07) :3006-3012

[7] Analysis of Optical Absorbance Spectra for the Determination of ZnO Nanoparticle Size Distribution, Solubility, and Surface Energy [J].

Segets, Doris ;

Gradl, Johannes ;

Taylor, Robin Klupp ;

Vassilev, Vassil ;

Peukert, Wolfgang .

ACS NANO, 2009, 3 (07) :1703-1710

[8] Optical characterization of ZnO nanoparticles capped with various surfactants [J].

Singla, M. L. ;

Shafeeq, Muhamed M. ;

Kumar, Manish .

JOURNAL OF LUMINESCENCE, 2009, 129 (05) :434-438

[9] OPTICAL PROPERTIES AND ELECTRONIC STRUCTURE OF AMORPHOUS GERMANIUM [J].

TAUC, J ;

GRIGOROVICI, R ;

VANCU, A .

PHYSICA STATUS SOLIDI, 1966, 15 (02) :627-+

[10] ZnO nanoparticles synthesised by mechanochemical processing [J].

Tsuzuki, T ;

McCormick, PG .

SCRIPTA MATERIALIA, 2001, 44 (8-9) :1731-1734

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