About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Glasses and Optical Materials: Challenges, Advances, and Applications
|
| Presentation Title |
Structural transformation of solids derived from crystalline, amorphous, and nanoparticle GeO2 sources |
| Author(s) |
Monisha Murthi, Andrew Fernandes, Steve Feller, David L Sidebottom, Joel F Destino |
| On-Site Speaker (Planned) |
Monisha Murthi |
| Abstract Scope |
Germanium oxide (GeO2) plays a major role in telecommunications and optical industries due to its wide band gap, low transmission, and higher refractive index. It has been widely studied in bulk, nano and glass forms, but their structural control remains a challenge. The phase transformation from crystalline to amorphous GeO2 is crucial for tailoring its properties for diverse applications. Gaining insight into the structural behavior associated with these transformations is essential for understanding and predicting the functional performance of GeO2-based materials. In this study, we systematically investigate the phase transformation behavior of GeO2 derived from crystalline, amorphous, and nanoparticle forms synthesized via melt-quench and sol-gel techniques. Structural and morphological changes were analyzed using XRD, FTIR, Raman, and SEM. Thermal stability and phase changes were studied through differential thermal analysis (DTA). The results provide a clear comparative analysis of GeO2 in various forms, highlighting distinct structural and thermal transformation pathways. |