Optical properties of spin-coated amorphous chalcogenide thin films

Phase change materials

“…It requires that the to-be-deposited material be soluble and that the deposition be done by spin-coating, dip coating, printing, etc. Several chalcogenide materials such as As 2 S 3−x Se x , GeS 2−x Se x , GeSe 2−x Te x , and As 2 Te 3 have been deposited by spin-coating by use of amine-containing solvents (98)(99)(100)(101)(102). A larger range of PCMs can be spin-coated if not the chalcogenide itself, but rather a precursor consisting of a salt or neutral complex of the chalcogenide, is dissolved, and solution-phase deposition of other PCMs, including KSb 5 S 8 (103) and Ge-doped Sb 2 Se 3 (80), has been reported.…”

Solution processed As30Se70chalcogenide glass thin films with specular optical quality: multi-component solvent approach

“…172 °C [30]) solvents dampen the possibility of successful organic residuals removal from deposited thin films. The presence of residual particles or precipitate in prepared ChG solutions was also reported, and it is usually removed by filtration, centrifugation or sedimentation [15,27,28,31]. However, the precipitation and filtration procedures can consequently influence the composition of used ChG solution and in extension the composition of deposited thin films.…”

The comparison of Ag–As33S67 films prepared by thermal evaporation (TE), spin-coating (SC) and a pulsed laser deposition (PLD)

“…In the case of the SC film, the presence of organic chains of -CH 2 -CH 2 -CH 2 -CH 2 -NH 2 (butylamine) in the As-S matrix can increase the structural randomness of system. Chern and Lauks [13] and Hajto et al [14] have described that solvent molecules are linked to S atoms through the -NH 2 amine radical.…”