Light-induced reversible hydrophilicity of ZnO structures grown by aqueous chemical growth

被引：74

作者：

Kenanakis, G. ^{[1
,2
,3
]}

Stratakis, E. ^{[1
,4
,5
,6
]}

Vlachou, K. ^{[6
]}

Vernardou, D. ^{[1
,3
,6
]}

Koudoumas, E. ^{[1
,4
]}

Katsarakis, N. ^{[1
,3
,5
]}

机构：

[1] Technol Educ Inst Crete, Ctr Mat Technol & Laser, Sch Appl Technol, Iraklion 71004, Crete, Greece

[2] Univ Crete, Dept Chem, Iraklion 71003, Crete, Greece

[3] Technol Educ Inst Crete, Dept Sci, Sch Appl Technol, Iraklion 71004, Crete, Greece

[4] Technol Educ Inst Crete, Dept Elect Engn, Iraklion 71004, Crete, Greece

[5] Fdn Res & Technol Hellas, Inst Elect Struct & Laser, Iraklion 71110, Crete, Greece

[6] Univ Crete, Dept Mat Sci & Technol, Iraklion 71003, Crete, Greece

来源：

APPLIED SURFACE SCIENCE | 2008年 / 254卷 / 18期

关键词：

ZnO; microstructures; aqueous chemical growth; wettability;

D O I：

10.1016/j.apsusc.2008.03.055

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

ZnO wurtzite microrods and flowerlike structures were deposited on glass and ITO substrates by the aqueous chemical growth (ACG) technique at mild temperature (95 degrees C). Wettability studies revealed that the as-deposited structures are hydrophilic and super-hydrophilic for short and long growth times, respectively. The hydrophilic ZnO surfaces could be reversibly switched to super-hydrophilic by alternation of UV illumination and dark storage. Our results demonstrate that ACG at low temperatures can be efficiently employed to deposit transparent photosensitive ZnO structures exhibiting reversible wettability changes. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：5695 / 5699

页数：5

共 18 条

[1] Self-cleaning surfaces - virtual realities [J].

Blossey, R .

NATURE MATERIALS, 2003, 2 (05) :301-306

[2] Wettability of porous surfaces. [J].

Cassie, ABD ;

Baxter, S .

TRANSACTIONS OF THE FARADAY SOCIETY, 1944, 40 :0546-0550

[3] Super-hydrophobic surfaces: From natural to artificial [J].

Feng, L ;

Li, SH ;

Li, YS ;

Li, HJ ;

Zhang, LJ ;

Zhai, J ;

Song, YL ;

Liu, BQ ;

Jiang, L ;

Zhu, DB .

ADVANCED MATERIALS, 2002, 14 (24) :1857-1860

[4] Design and creation of superwetting/antiwetting surfaces [J].

Feng, Xinjian ;

Jiang, Lei .

ADVANCED MATERIALS, 2006, 18 (23) :3063-3078

[5] Superhydrophobic zinc oxide surface by differential etching and hydrophobic modification [J].

Hou, Xianming ;

Zhou, Feng ;

Yu, Bo ;

Liu, Weimin .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2007, 452 :732-736

[6] Ozone sensing properties of ZnO nanostructures grown by the aqueous chemical growth technique [J].

Kenanakis, George ;

Vernardou, Dimitra ;

Koudoumas, Emmanuel ;

Kiriakidis, George ;

Katsarakis, Nikos .

SENSORS AND ACTUATORS B-CHEMICAL, 2007, 124 (01) :187-191

[7] Superhydrophobic surfaces [J].

Ma, Minglin ;

Hill, Randal M. .

CURRENT OPINION IN COLLOID & INTERFACE SCIENCE, 2006, 11 (04) :193-202

[8] Recent studies on super-hydrophobic films [J].

Nakajima, A ;

Hashimoto, K ;

Watanabe, T .

MONATSHEFTE FUR CHEMIE, 2001, 132 (01) :31-41

[9] Rough ideas on wetting [J].

Quéré, D .

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 2002, 313 (1-2) :32-46

[10] Effect of visible light on the water contact angles on illuminated oxide semiconductors other than TiO2 [J].

Rico, V. ;

Lopez, C. ;

Borras, A. ;

Espinos, J. P. ;

Gonzalez-Elipe, A. R. .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2006, 90 (17) :2944-2949

← 1 2 →