Author ORCID Identifier
https://orcid.org/0000-0001-5262-5414
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https://orcid.org/0000-0001-7598-5076
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Document Type
Article
Publication Date
2019
College/Unit
Statler College of Engineering and Mining Resources
Department/Program/Center
Mechanical and Aerospace Engineering
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.
Digital Commons Citation
Chang, Alvin; He, Yujuan; Arango, Maria A. Torres; Wang, Maoyu; Ren, Yang; Feng, Zhenxing; Chang, Chih-Hung; and Sierros, Knostantinos A., "On the Unusual Amber Coloration of Nanoporous Sol-gel Processed Al-doped Silica Glass: An Experimental Study" (2019). Faculty & Staff Scholarship. 1849.
https://researchrepository.wvu.edu/faculty_publications/1849
Source Citation
Chang, A., He, Y., Arango, M. A. T., Wang, M., Ren, Y., Feng, Z., Chang, C.-H., & Sierros, K. A. (2019). On the unusual amber coloration of nanoporous sol-gel processed Al-doped silica glass: An experimental study. Scientific Reports, 9(1). https://doi.org/10.1038/s41598-019-48917-4
Comments
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