Citation: Yu Ying FENG, Xiao Tian GU, Jia Hong ZHOU, Jian Chun BAO, Gang LI, Tian Hong LU. New Photoluminescence Phenomena of Ge/SiO₂ Glass Synthesized by Sol-gel Method[J]. Chinese Chemical Letters, ;2004, 15(12): 1505-1508. shu

New Photoluminescence Phenomena of Ge/SiO₂ Glass Synthesized by Sol-gel Method

1.
Analysis and Testing Center, Lab of Materials Science, Nanjing Normal University, Nanjing 210097;
2.
Department of Chemistry and Environmental Science, Nanjing Normal University, Nanjing 210097

Received Date: 13 January 2004

Fund Project: This work was financially supported by Natural Science Foundation of Jiangsu Education Department (Grant No. 2OOOLHZOOOOSJI) and the National Natural Science Foundation of China (No. 29973015)

New Ge/SiO₂ glasses have been synthesized by heating the GeO₂/SiO₂ dry gels under H₂ gas at 700℃. The resulting fluorescence spectra show that this kind of Ge/SiO₂ glasses emit strong photoluminescence at 392 nm (3.12 eV), medium strong photoluminescence at 600 nm (2.05 eV)and weak photoluminescence at 770 nm (1.60 eV) respectively. Possible photolnminescence mechanisms are also discussed based on the results of X-ray diffraction (XRD) and X-ray photoelectron spectra (XPS).
- Ge/SiO₂glasses,
- Ge nanocrystals,
- photolnminescence,
- sol-gel method
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