Superhydrophobic and Omnidirectional Antireflective Surfaces from Nanostructured Ormosil Colloids

被引：78
作者：
Yildirim, Adem [1 ,2 ]
Khudiyev, Tural [1 ,2 ]
Daglar, Bihter [1 ,2 ]
Budunoglu, Hulya [1 ,2 ]
Okyay, Ali K. [1 ,2 ,3 ]
Bayindir, Mehmet [1 ,2 ,4 ]
机构：
[1] Bilkent Univ, UNAM Natl Nanotechnol Res Ctr, TR-06800 Ankara, Turkey
[2] Bilkent Univ, Inst Mat Sci & Nanotechnol, TR-06800 Ankara, Turkey
[3] Bilkent Univ, Dept Elect & Elect Engn, TR-06800 Ankara, Turkey
[4] Bilkent Univ, Dept Phys, TR-06800 Ankara, Turkey
来源：
ACS APPLIED MATERIALS & INTERFACES | 2013年 / 5卷 / 03期
关键词：
superhydrophobic; self-cleaning; organo-modified silica; antireflection; omnidirectional; functional surfaces; SILICA AEROGEL FILMS; AMBIENT-PRESSURE; POLYMER-FILMS; TRANSPARENT; COATINGS; NANOPARTICLES; ROUGHNESS; TEMPLATE;
D O I：
10.1021/am3024417
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A large-area superhydrophobic and omnidirectional antireflective nanostructured organically modified silica coating has been designed and prepared. The coating mimics the self-cleaning property of superhydrophobic lotus leaves and omnidirectional broad band antireflectivity of moth compound eyes, simultaneously. Water contact and sliding angles of the coating are around 160 and 10, respectively. Coating improves the transmittance of the glass substrate around 4%, when coated on a single side of a glass, in visible and near-infrared region at normal incidence angles. At oblique incidence angles (up to 60) improvement in transmission reaches to around 8%. In addition, coatings are mechanically stable against impact of water droplets from considerable heights. We believe that our inexpensive and durable multifunctional coatings are suitable for stepping out of the laboratory to practical outdoor applications.
引用
收藏
页码：853 / 860
页数：8
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