Broadband Antireflective Superhydrophilic Thin Films with Outstanding Mechanical Stability on Glass Substrates  

作　　者：Lin Yao Junhui He 

机构地区：[1]Functional Nanomaterials Laboratory and Key Laboratory of Photochemical Conversion and Optoelectronic Materials,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100190,China [2]Graduate University of Chinese Academy of Sciences,Beijing 100864,China

出　　处：《Chinese Journal of Chemistry》2014年第6期507-512,共6页中国化学（英文版）

基　　金：This work was supported by the National High Technology Research and Development Program(“863”Program)of China(Grant No.2011AA050525);the Knowledge Innovation Program of the Chinese Academy of Sciences(CAS)(Grant Nos.KGCX2-YW-370 and KGCX2-EW-304-2);the National Natural Science Foundation of China(Grant no.21271177).

摘　　要：A facile approach was developed to fabricate visible/near-infrared antireflective(AR),superhydrophilic and anti-fogging thin films on glass substrates.Glass substrate was first etched by H_(2)SiF_(6)-based vapor and then dip-coated sequentially in a base-catalyzed 20 nm SiO_(2)nanoparticles sol and an acid-catalyzed SiO_(2)sol.After an-nealing,the prepared thin film(named E/BSiO_(2)/ASiO_(2))not only showed good optical and wetting properties,but also exhibited excellent mechanical properties.The thin film has enhanced transmittance in the spectral range of UV to near-infrared.The maximum transmittance of E/BSiO_(2)/ASiO_(2)thin film coated glass substrate is 98.4%in 400-1200 nm and 96.1%in 1200-2500 nm,respectively.Comparing with blank glass substrate,the average transmittance increases by 5%in the wavelength range of 300-2500 nm.Meanwhile,the film showed good anti-fogging performance.SEM and AFM were employed to characterize the morphology of the thin film.The pre-pared thin film has potential application in various areas,like solar cells,windowpanes and eyeglasses,and may also find applications in membrane-based separation,selective catalysis and sensors.

关 键 词：ETCHING ANTIREFLECTION SUPERHYDROPHILICITY ANTI-FOGGING mechanical properties 

分 类 号：TB3[一般工业技术—材料科学与工程]