TY - JOUR
T1 - Preparation and characterization of polyvinyl butyral/silica hybrid antireflective coating
T2 - Effect of PVB on moisture-resistance and hydrophobicity
AU - Zhang, Xinxiang
AU - Cao, Congrui
AU - Xiao, Bo
AU - Yan, Lianghong
AU - Zhang, Qinghua
AU - Jiang, Bo
PY - 2010/1
Y1 - 2010/1
N2 - A new modified antireflective coating was prepared by base catalyzed sol-gel process using tetraethylorthosilicate as precursor and polyvinyl butyral as modifier. The properties of the silica sols and AR coatings were characterized with Fourier-transfer infrared absorption spectroscopy, particle size analyzer, transmission electron microscope, programmable rheometer, UV-Vis spectrophotometry, ellipsometry, atomic force microscope and contact angle measurement. It was found that addition of 4% PVB greatly enhanced moisture-resistance of the AR coating. Optical transmittance of 4% PVB modified AR coating on BK7 substrate was found to be nearly 100%. The water contact angles of normal and 4% PVB modified AR coating were 51 and 53°, respectively, which indicates no significant increase of hydrophobicity of the modified coating. The peak transmittance of 4% PVB modified AR coating was almost unaffected after being exposed to the moist surroundings while that of normal silica coating decreased sharply from 99.8 to 96.5% within 2 weeks. The excellent moisture-resistance of PVB modified AR coating may be attributed to the adsorption of PVB on the surface of AR coating.
AB - A new modified antireflective coating was prepared by base catalyzed sol-gel process using tetraethylorthosilicate as precursor and polyvinyl butyral as modifier. The properties of the silica sols and AR coatings were characterized with Fourier-transfer infrared absorption spectroscopy, particle size analyzer, transmission electron microscope, programmable rheometer, UV-Vis spectrophotometry, ellipsometry, atomic force microscope and contact angle measurement. It was found that addition of 4% PVB greatly enhanced moisture-resistance of the AR coating. Optical transmittance of 4% PVB modified AR coating on BK7 substrate was found to be nearly 100%. The water contact angles of normal and 4% PVB modified AR coating were 51 and 53°, respectively, which indicates no significant increase of hydrophobicity of the modified coating. The peak transmittance of 4% PVB modified AR coating was almost unaffected after being exposed to the moist surroundings while that of normal silica coating decreased sharply from 99.8 to 96.5% within 2 weeks. The excellent moisture-resistance of PVB modified AR coating may be attributed to the adsorption of PVB on the surface of AR coating.
KW - Antireflective coating
KW - Hydrophobicity
KW - Moisture-resistance
KW - Polyvinyl butyral
UR - http://www.scopus.com/inward/record.url?scp=74849115551&partnerID=8YFLogxK
U2 - 10.1007/s10971-009-2058-3
DO - 10.1007/s10971-009-2058-3
M3 - 文章
AN - SCOPUS:74849115551
SN - 0928-0707
VL - 53
SP - 79
EP - 84
JO - Journal of Sol-Gel Science and Technology
JF - Journal of Sol-Gel Science and Technology
IS - 1
ER -