Thermal stability of silver selenide thin films on silicon formed from the solid state reaction of Ag and Se films

Achieving ultrahigh power factor in n-type Ag2Se thin films by carrier engineering

“…S5, the measured optical bandgap con rms that the lms have larger optical bandgap after annealing, which match the calculated result. Additionally, more Ag atoms can enter into the β-phase lattice than the α-phase as reported in the literatures [35,36]. Therefore, it can be inferred that the intensi ed atomic diffusion at the annealing temperature over phase change temperature will reduce dislocation defects and Ag vacancy defects in the Ag 2 Se thin lm, thus contributes in the enhancement of carrier mobility and results in relative high S.…”

“…Optimization of the carrier concentration and mobility can effectively improve the thermoelectric performance of TE thin lms to some extent [33]. To further enhance the TE performance of evaporated Ag 2 Se thin lms, it is imperative to integrate multiple approaches to tune the highly interconnected thermoelectric properties [34][35][36]. In this work, Ag 2 Se thin lms were prepared by a facile thermal co-evaporation method, instead of using single evaporated, which provides an effective way to adjust composition.…”

Transformation of Se@Ag2Se Core−Shell Colloids and Nanowires into Trigonal Se Nanorods and Uniform Spherical Ag2Se Colloids

“…However, the instability could not develop further within the experimental time due to the lack of mobility of Ag 2 Se. The driving force to minimize the surface can have a significant influence above the transition temperature. The dewetting developed fast at 140 °C and led to the breakup of the shells and the formation of small droplets on the t -Se nanowires (Figure C).…”

Magnetic properties and microstructure of Ag2Se/FePt particulate films

“…Ag 2 Se is known for its polymorphism and high ionic conductivity and has traditionally been considered a potential thermoelectric material and super-ionic conductor. 16 The recent discovery of high magnetoresistance (MR) has greatly enhanced interest in silver selenide. 17…”