Sol–Gel Based Hydrophobic Antireflective Coatings on Organic Substrates: A Detailed Investigation of Ammonia Vapor Treatment (AVT)

2014 ◽  
Vol 26 (5) ◽  
pp. 1822-1833 ◽  
Author(s):  
Mickael Boudot ◽  
Vincent Gaud ◽  
Mélanie Louarn ◽  
Mohamed Selmane ◽  
David Grosso
Keyword(s):  
Sol Gel ◽  
Organic Substrates ◽  
Ammonia Vapor ◽  
Antireflective Coatings ◽  
Vapor Treatment

Development of High Permeability Core Materials for Embeddable Inductors in Flexible Organic Substrates

2003 ◽  
Vol 769 ◽  
Author(s):  
C. K. Liu ◽  
P. L. Cheng ◽  
S. Y. Y. Leung ◽  
T. W. Law ◽  
D. C. C. Lam
Keyword(s):  
Low Temperature ◽  
Sol Gel ◽  
Circuit Board ◽  
Organic Substrates ◽  
Circuit Boards ◽  
High Permeability ◽  
Electrical Measurements ◽  
Different Temperatures ◽  
Spiral Inductors ◽  
Ceramic Tape

AbstractCapacitors, resistors and inductors are surface mounted components on circuit boards, which occupy up to 70% of the circuit board area. For selected applications, these passives are packaged inside green ceramic tape substrates and sintered at temperatures over 700°C in a co-fired process. These high temperature processes are incompatible with organic substrates, and low temperature processes are needed if passives are to be embedded into organic substrates. A new high permeability dual-phase Nickel Zinc Ferrite (DP NZF) core fabricated using a low temperature sol-gel route was developed for use in embedded inductors in organic substrates. Crystalline NZF powder was added to the sol-gel precursor of NZF. The solution was deposited onto the substrates as thin films and heat-treated at different temperatures. The changes in the microstructures were characterized using XRD and SEM. Results showed that addition of NZF powder induced low temperature transformation of the sol-gel NZF phase to high permeability phase at 250°C, which is approximately 350°C lower than transformation temperature for pure NZF sol gel films. Electrical measurements of DP NZF cored two-layered spiral inductors indicated that the inductance increased by three times compared to inductors without the DP NZF cores. From microstructural observations, the increase is correlated with the changes in microstructural connectivity of the powder phase.

Environment-resistant fluoro-containing antireflective coatings for high-powered laser systems

RSC Advances ◽  
2014 ◽  
Vol 4 (90) ◽  
pp. 48872-48875 ◽  
Author(s):  
Xinxiang Zhang ◽  
Mengyun Zhuang ◽  
Xia Miao ◽  
Wenmu Su ◽  
Mingyue Lin ◽  
...  
Keyword(s):  
Sol Gel ◽  
Antireflective Coatings ◽  
Sol Gel Process ◽  
Laser Systems

Environment-resistant fluoro-containing antireflective coatings was prepared by a sol–gel process by the co-condensation of tetraethylorthosilicate and 1H,1H,2H,2H-perfluoroalkyltriethoxysilanes (POTS).

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

Sol-Gel-Derived Tri-Layer Antireflective Coatings for Blast Shields

2019 ◽  
Vol 46 (7) ◽  
pp. 0703001
Author(s):  
熊怀 Huai Xiong ◽  
唐永兴 Yongxing Tang ◽  
胡丽丽 Lili Hu ◽  
沈斌 Bin Shen ◽  
李海元 Haiyuan Li
Keyword(s):  
Sol Gel ◽  
Antireflective Coatings

scholarly journals Fluorolytic Sol–Gel Synthesis of Nanometal Fluorides: Accessing New Materials for Optical Applications

Inorganics ◽  
2018 ◽  
Vol 6 (4) ◽  
pp. 128 ◽  
Author(s):  
Kerstin Scheurell ◽  
Erhard Kemnitz
Keyword(s):  
Alkaline Earth ◽  
Sol Gel ◽  
Earth Metal ◽  
Alkaline Earth Metal ◽  
Antireflective Coatings ◽  
Cubic Crystal ◽  
Metal Fluorides ◽  
Optical Applications ◽  
Sol Gel Synthesis ◽  
Synthesis Approach

The potential of fluorolytic sol–gel synthesis for a wide variety of applications in the field of optical materials is reviewed. Based on the fluorolytic sol–gel synthesis of nanometal fluorides, sols of complex fluorometalates have become available that exhibit superior optical properties over known classical binary metal fluorides as, for instance, magnesium fluoride, calcium fluoride, or strontium fluoride, respectively. The synthesis of transparent sols of magnesium fluoroaluminates of the general composition MgxAlFy, and fluoroperovskites, [K1−xNax]MgF3, is reported. Antireflective coatings fabricated from MgF2, CaF2, MgxAlFy, and [K1−xNax]MgF3 sols and their relevant properties are comprehensively described. Especially the heavier alkaline earth metal fluorides and the fluorperovskites crystallizing in a cubic crystal structure are excellent hosts for rare earth (RE) metals. Thus, the second chapter reflects the synthesis approach and the properties of luminescent systems based on RE-doped alkaline earth metal fluorides and [K1−xNax]MgF3 phases.

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.

Sol-Gel Synthesis of thin Films for use as Planar Waveguides

1990 ◽  
Vol 180 ◽  
Author(s):  
G.W. Dale ◽  
H.H. Fox ◽  
Brian J.J. Zelinski ◽  
Laura Weller-Brophy
Keyword(s):  
Thin Films ◽  
Heat Treatment ◽  
Sol Gel ◽  
Planar Waveguides ◽  
Antireflective Coatings ◽  
Synthesis Techniques ◽  
Prism Coupler ◽  
University Of Arizona ◽  
The University ◽  
Sol Gel Synthesis

SiO2-TiO2 sol-gel solutions and synthesis techniques have been developed to produce thin films of proper index, thickness and quality for use as planar waveguides. The composition of the synthesized films ranged from 50 to 68 mole % TiO2 and produced layers with indices ranging from 1.7 to 1.8. Final film thicknesses ranged from 1000 to 3000 A and varied as a function of the coating chemistry and conditions. Also, changes in film shrinkage and index with heat treatment were determined and compared to literature data on similar films used as antireflective coatings. Finally, confirmation of the waveguiding qualities of these films was made through prism coupler measurements conducted by the University of Arizona Optical Sciences Center.

Sol-gel derived contamination resistant antireflective coatings

2010 ◽  
Author(s):  
Jun Shen ◽  
Yuan Liu ◽  
Guangming Wu ◽  
Bin Zhou ◽  
Zhihua Zhang ◽  
...  
Keyword(s):  
Sol Gel ◽  
Antireflective Coatings
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