Article | REF: AF3610 V2

Aerogels. Material properties

Author: Thierry WOIGNIER

Publication date: July 10, 2017

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!


Français

1. Optical properties

Because of their transparency, silica aerogels are likely to have optical properties of interest in the visible range.

Aerogels derived from organic cross-linking are, for the most part, opaque. Resorcinol formaldehyde aerogels, with their very low density and red color, are slightly transparent. Melamine formaldehyde gels are transparent, but the evacuation of the solvent during the drying stage results in opacity.

1.1 Transparency

A transparent material is one that transmits light. For good transmission, the material must be non-absorbent in the spectral range under consideration, and scattering must be low. Given the low density of aerogels, the refractive index is relatively low and, to a first approximation, optical losses...

You do not have access to this resource.

Exclusive to subscribers. 97% yet to be discovered!

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!


The Ultimate Scientific and Technical Reference

A Comprehensive Knowledge Base, with over 1,200 authors and 100 scientific advisors
+ More than 10,000 articles and 1,000 how-to sheets, over 800 new or updated articles every year
From design to prototyping, right through to industrialization, the reference for securing the development of your industrial projects

This article is included in

Nanosciences and nanotechnologies

This offer includes:

Knowledge Base

Updated and enriched with articles validated by our scientific committees

Services

A set of exclusive tools to complement the resources

Practical Path

Operational and didactic, to guarantee the acquisition of transversal skills

Doc & Quiz

Interactive articles with quizzes, for constructive reading

Subscribe now!

Ongoing reading
Optical properties