The structure of the organic-inorganic hybrid low-melting glasses prepared by the nonaqueous acid-base reaction was investigated mainly by 31P NMR techniques in order to elucidate the chemical durability-structure relationship. By increasing the reaction temperature, it is possible to improve the conversion, resulting in increase of the network dimensions of the resultant glasses. It is found that the glasses of high degree of condensation tend to have better water durability in a humid atmosphere. In addition, gold nanoparticle doped and gold-dye co-doped glasses were prepared by the acid-base reaction. The efficient energy transfer from gold nanoparticle to dye was observed by the photoluminescence measurement.
