New Functions Elaborated in Oxide Glasses by Nanotechnology

Recent three topics of Nanotechnology Glass Project were described. (1) A proton-conducting hybrid material was fabricated using a glass plate with nano-pores. The conductivity of the hybrid glass plate was comparable to Nafion, and no corrosion or degradation observed up to 120°C. (2) Nano-particles of CdTe were synthesized in a water solution and embedded in the glass matrix using a sol-gel method. The emission quantum efficiency pf 3% was attained. (3) Deep dry etching followed by overcladding buried the DOE with a deep groove inside a Si0₂ plate, which was used for fabrication of an ultra small demultiplexer.