Characterization and optical properties of bismuth chalcogenide films prepared by pulsed laser deposition technique

The dimensional crossover of quantum transport properties in few-layered Bi2Se3 thin films

“…[33][34][35] To obtain a greater transport contribution from the topological SS, it is important to obtain TI thin lms with a high crystallization quality. The methods usually used for preparing TI thin lms include molecular beam epitaxy (MBE), 33,[36][37][38][39][40] chemical vapor deposition, [41][42][43][44] physical vapor deposition, [45][46][47][48] pulsed laser deposition (PLD) [49][50][51][52][53][54][55][56][57][58][59][60] and sputtering. 61,62 The MBE is the method mainly used to obtain at and thin TI lms for fundamental research, because of its advantages of 2D growth, single crystal yield and easily controlled doping.…”

Proton Ion Irradiation on As40Se50Sb10 Thin Films: Fluence-Dependent Tuning of Linear–Nonlinear Optical Properties for Photonic Applications

“…The overall increase in transmittance might be due to the decrease in absorption by the impact of localized energy levels between valence and conduction bands. The increase in T % might also be due to the reduction in scattering centers due to proton irradiation like other studies . Such kind of effect suggests that the material is getting more transparent upon proton irradiation.…”

“…The increase in T % might also be due to the reduction in scattering centers due to proton irradiation like other studies. 28 Such kind of effect suggests that the material is getting more transparent upon proton irradiation. The appearance of the interference fringe at a higher wavelength (above 700 nm) in the films depicts their uniformity and homogeneity.…”

Role of annealing temperature on optimizing the linear and nonlinear optical properties of As40Se50Ge10 films

“…The increase in transmittance is due to the reduction of surface scattering as seen from other studies. 35,36 This also indicates the relaxation in the annealed lms. The reectance spectra showed opposite trend as that of the transmittance which is small in magnitude.…”