Sol–Gel Preparation of Hydrophobic Silica Antireflective Coatings with Low Refractive Index by Base/Acid Two-Step Catalysis

2014 ◽  
Vol 6 (14) ◽  
pp. 11470-11475 ◽  
Author(s):  
Shuang Cai ◽  
Yulu Zhang ◽  
Hongli Zhang ◽  
Hongwei Yan ◽  
Haibing Lv ◽  
...  
Keyword(s):  
Refractive Index ◽  
Sol Gel ◽  
Antireflective Coatings ◽  
Hydrophobic Silica ◽  
Gel Preparation ◽  
Low Refractive Index

Sol-gel Preparation of Graded-refractive-index Antireflective Coatings for GaInP/GaAs/Ge Triple-junction Solar Cells

2016 ◽  
Vol 45 (8) ◽  
pp. 831001
Author(s):  
田冰涛 TIAN Bing-tao ◽  
王晓栋 WANG Xiao-dong ◽  
牛彦彦 NIU Yan-yan ◽  
曹媛媛 CAO Yuan-yuan ◽  
冯建斌 FENG Jian-bin ◽  
...  
Keyword(s):  
Refractive Index ◽  
Solar Cells ◽  
Triple Junction ◽  
Sol Gel ◽  
Antireflective Coatings ◽  
Gel Preparation

Sol–Gel Preparation of Ultralow Refractive Index Magnesium Fluoride Optical Films for Broadband Antireflective Coatings

2012 ◽  
Vol 4 (4) ◽  
pp. 441-444 ◽  
Author(s):  
Fangting Chi ◽  
Lianghong Yan ◽  
Haibing Lv ◽  
Hongwei Yan ◽  
Xiaodong Yuan ◽  
...  
Keyword(s):  
Refractive Index ◽  
Sol Gel ◽  
Magnesium Fluoride ◽  
Antireflective Coatings ◽  
Optical Films ◽  
Gel Preparation

scholarly journals Preparation of ultra-broadband antireflective coatings for amplifier blast shields by a sol–gel method

2017 ◽  
Vol 5 ◽  
Author(s):  
Huai Xiong ◽  
Bin Shen ◽  
Zhiya Chen ◽  
Xu Zhang ◽  
Haiyuan Li ◽  
...  
Keyword(s):  
Refractive Index ◽  
Sol Gel ◽  
High Refractive Index ◽  
Dip Coating ◽  
Scratch Resistance ◽  
Fused Silica ◽  
Antireflective Coating ◽  
Antireflective Coatings ◽  
Average Residual ◽  
Low Refractive Index

A type of $\unicode[STIX]{x1D706}/4$–$\unicode[STIX]{x1D706}/4$ ultra-broadband antireflective coating has been developed using modified low refractive silica and high refractive silica layers by a sol–gel dip coating method for amplifier blast shields of the Shen Guang II high power laser facility (SG-II facility). Deposition of the first layer (high refractive index silica) involves baking at $200\,^{\circ }\text{C}$ in the post-treatment step. The second layer (low refractive index, $n=1.20$) uses low refractive index silica sol modified by acid catalysis. Thermal baking at temperatures no less than $500\,^{\circ }\text{C}$ for 60 min offers chemical stability, ethanol scratch resistance, and resistance to washing with water. The average residual reflection of dual-side-coated fused silica glass was less than 1% in the spectral range from 450 to 950 nm. Transmission gain has been evaluated by taking into account angular light, and the results show that the transmission gain increases with increasing light incidence. Even at $60^{\circ }$, the transmission spectrum of the broadband antireflective coating effectively covered the main absorption peak of Nd:glass.

Study on low-refractive-index sol-gel SiO2 antireflective coatings

2016 ◽  
Vol 14 (8) ◽  
pp. 083101-83103 ◽  
Author(s):  
Bin Shen Bin Shen ◽  
Haiyuan Li Haiyuan Li ◽  
Huai Xiong Huai Xiong ◽  
Xu Zhang Xu Zhang ◽  
and Yongxing Tang and Yongxing Tang
Keyword(s):  
Refractive Index ◽  
Sol Gel ◽  
Antireflective Coatings ◽  
Low Refractive Index

Sol–gel preparation of antireflective coatings at 351 nm with different thickness and improved moisture-resistance

2011 ◽  
Vol 58 (1) ◽  
pp. 340-344 ◽  
Author(s):  
Xinxiang Zhang ◽  
Yulu Zhang ◽  
Haiping Ye ◽  
Bo Xiao ◽  
Lianghong Yan ◽  
...  
Keyword(s):  
Sol Gel ◽  
Moisture Resistance ◽  
Antireflective Coatings ◽  
Gel Preparation ◽  
Different Thickness

New Transparent Substrate with Silica Aerogel Film for Surface-Emissive Devices

2000 ◽  
Vol 660 ◽  
Author(s):  
H. Yokogawa ◽  
K. Kawano ◽  
M. Yokoyama ◽  
T. Tsutsui ◽  
M. Yahiro ◽  
...  
Keyword(s):  
Refractive Index ◽  
Glass Substrate ◽  
Silica Aerogel ◽  
Sol Gel ◽  
Supercritical Drying ◽  
Transparent Electrode ◽  
Light Sources ◽  
Photoluminescence Intensity ◽  
Transparent Substrate ◽  
Low Refractive Index

ABSTRACTSilica aerogels prepared by sol-gel methods with supercritical drying process have transparency and extremely low refractive index which is not available in any other materials. This extraordinary refractivity is expected to present some new features as an optical material. Ordinarily, coupling-out efficiency of surface-emissive light sources has been assumed to be low. It is due to the losses organized from internal reflection of emitted light at the air-glass interface and dissipation during wave-guiding propagation within the substrate.However, when material that has extremely low refractive index is inserted between a thin luminescence layer and glass substrate, almost all the light from the luminescence layer can efficiently couple out to air passing through the glass substrate. In this report, we introduce a silica aerogel film as a low refractive index material for surface-emissive devices, such as photoluminescent and electroluminescent device. In the experiments, the photoluminescence intensity of Alq3 through the silica aerogel layer was twice as large as that of the glass substrate without the silica aerogel film. Moreover, we formed a new substrate which contained a transparent electrode on the silica aerogel film. Using this substrate, we fabricated the OLED and observed the disappearance of wave-guiding propagation within the glass substrate.

Role of Catalyst on Refractive Index Tunability of Porous Silica Antireflective Coatings by Sol−Gel Technique

2007 ◽  
Vol 111 (23) ◽  
pp. 8291-8298 ◽  
Author(s):  
Abhilash Vincent ◽  
Suresh Babu ◽  
Erik Brinley ◽  
Ajay Karakoti ◽  
Sameer Deshpande ◽  
...  
Keyword(s):  
Refractive Index ◽  
Sol Gel ◽  
Porous Silica ◽  
Antireflective Coatings ◽  
Gel Technique

A hydrophobic and abrasion-resistant MgF2coating with an ultralow refractive index for double-layer broadband antireflective coatings

2017 ◽  
Vol 5 (12) ◽  
pp. 3088-3096 ◽  
Author(s):  
Xinmin Cui ◽  
Ruimin Ding ◽  
Mengchao Wang ◽  
Conghui Wang ◽  
Jing Zhang ◽  
...  
Keyword(s):  
Refractive Index ◽  
Double Layer ◽  
Abrasion Resistance ◽  
Sol Gel ◽  
Antireflective Coatings

A novel sol–gel route was proposed in order to prepare an ultralow-index MgF2coating with both hydrophobicity and good abrasion-resistance.

Hydrophobic, ultra-low refractive index films prepared by sol-gel process

2016 ◽  
Vol 184 ◽  
pp. 305-307 ◽  
Author(s):  
Ye Yuan ◽  
Genghua Yan ◽  
Shaozhe Liu ◽  
Xiaodi Lu ◽  
Ruijiang Hong
Keyword(s):  
Refractive Index ◽  
Sol Gel ◽  
Sol Gel Process ◽  
Low Refractive Index
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