Home
Resources
Publications
On the Unusual Amber Coloration of Nanoporous Sol-Gel Processed Al-doped Silica Glass: An Experimental Study

On the Unusual Amber Coloration of Nanoporous Sol-Gel Processed Al-doped Silica Glass: An Experimental Study

Alvin Chang, Yujuan He, Maria A Torres Arango, Maoyu Wang, Yang Ren, Zhenxing Feng, Chih-Hung Chang, Konstantinos A Sierros

Sci Rep. 2019 Aug 28;9(1):12474.

PMID: 31462702

Abstract:

Silica is the most abundant component on the earth's surface. It plays an important role in many natural processes. Silica is also a critical material for a wide range of technical applications such as in optics and electronics. In this work, we discuss our recent experimental observation of the unusual amber coloration of aluminum doped sol-gel glass that has not been reported in the past. We characterized Al-doped sol-gel glasses, prepared at different sintering temperature, using a plethora of techniques to investigate the origin of this unusual coloration and to understand their structural and chemical properties. We used these experimental results to test a number of possible coloring mechanisms. The results suggested this coloring is likely caused by temperature-dependent aluminum-associated defect centers associated with different amorphous-to-crystalline ratios of the annealed sol-gel silica glass structures.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
LS76522	Aluminum doped silica			Price

As a specialist in analytical chemical Products, Alfa Chemistry offers consumers a wealth of raw materials and a full range of technologies and services.

QUICK LINKS

HEADQUARTERS

Tel:

Fax:

Email: