Spectroscopic Properties of Er^<3+>-Doped Al_2O_3-GeO_2 Gel
Effects of Al<SUB>2</SUB>O<SUB>3</SUB> codoping on spectroscopic properties such as upconversion fluorescence and electron spin resonance (ESR) were investigated in GeO<SUB>2</SUB> based gels containing Er<SUP>3+</SUP>. Clustering of Er<SUP>3+</SUP> ions in the gel was briefly discussed.
- Chemistry letters
Chemistry letters 1997(9), 931-932, 1997-09
The Chemical Society of Japan