Computer simulated and measured reflection of 3 layers AR-Coating based on photopolymerisable Nanomer after thermal densification at 450 °C for 10 min.

http://www.inm-gmbh.de

Contact:
Dr. M. Mennig,
Physics and Chemistry of Glass
Tel.: ++49 681 9300-394
Fax: ++49 681 9300-223

• Production of Interference optical filter on large-scale glass substrates by cost-saving multilayer sol-gel production

Method

• Synthesis of functionalised nanoparticles with high and low refractive index
• Deposition of thin film of photopolymerisable Nanomer on glass substrate by angle-dependent dip-coating or spin-coating process
• Each layer was deposited with subsequent UV-curing with energy density of 2.5 J/cm², and the layer-stack was thermally densified at 450 °C for 10 min

Results

• Interference filters with high optical quality can be obtained with tailored optical and mechanical properties by dip-coating on large-scale substrates

• AR-Filter with higher angular efficiency by interdiffusion of Ti and Si into the layers during the thermal treatment
• By using the „one step densification" process, reflective interference (with 5 layers) on float glass with wavelength range from 640 nm up to 1500 nm and with reflection of 82 % could be produced
• Abrasion resistance like glass

Applications

• IR-antireflective and reflective filter, color filter, AR- and Reflex-Filter (Visible)
• Solar Cell and collector
• Beam splitters and mirrors
• Colored filters
• Light protection system for detector
• Dichroic, band pass and edge filter