Spin-coated As33S67−Se thin films: the effect of annealing on structure and optical properties

A review on solution processing of chalcogenide glasses for optical components

“…Raman spectrum showed peaks of AsSe 3 pyramids, Se-Se chains, AsS 3 pyramids, As 4 S 4 units, weak S 8 -rings and S-Se bonds in spin-coated and pre-baked films. It is observed that these bonds approach bulk values along with solvent removal, except for the fragmentation and disappearance of S and Se ring structures [30].…”

Fast and robust infiltration of functional material inside titania nanotube layers: case study of a chalcogenide glass sensitizer

“…It was reported by Kohoutek et al 36 that chalcogenide glass mixtures with amine solvents form nanocolloidal solutions containing 2-8 nm glass clusters over a wide concentration range (comparable with that of our experiment). Aer spin-coating (2000 rpm) and subsequent vacuum drying at 125 C for 10 hours, 37,38 the as-prepared nanotube layers were subjected to photoelectrochemical measurements.…”

Infrared microlenses and gratings of chalcogenide: confined self-organization in solution processed thin liquid films

“…Residual solvents in these lms can be eliminated by a short, hard baking step at 90 C. It has been established that further annealing at 170 C for a few hours ensures re-polymerization of ChG and thus lms with structural properties similar to that of bulk ChG glass can be achieved. [13][14][15]35 It is observed that lms annealed at 50 C for two hours followed by annealing at 80 C for another two hours result in most defect free lms (mean surface roughness # 2 nm) which can later be reinforced structurally by a hard baking step at 170 C for 2 hours. Two subsequent annealing steps ensure removal of solvent slowly without causing defects at rst and then re-bonding of the ChG molecules so that the lms regains structural properties similar to bulk glass.…”