Optical and structural properties of two-sourced evaporated ZnTe thin films

Ag doped ZnTe films prepared by closed space sublimation and an ion exchange process

“…The resistivity of as deposited film is very high (∼10 6 ( cm) as expected for ZnTe films on amorphous glass substrate [5,6,11]. The resistivity of the films is decreased as function of immersion time, in AgNO 3 solution.…”

“…The thickness and refractive index of the films were calculated by fitting the transmission data to the following equation [10,11,25] …”

“…where T is the normal transmittance for the system of thin film on transparent substrate surrounding by air (refractive index = 1), and taking all multiple reflection at the interface [11,25] into account, in case of k 2 n 2 . A = 16n 2 s, B = (n + 1) 3 (n + s 2 ), C = 2(n 2 − 1)(n 2 − s 2 ), D = (n − 1) 3 (n − s 2 ), = 4nd/ , x = exp(−␣d), k = ␣ /4.…”

“…ZnTe thin films were prepared by several techniques including pulsed laser deposition [1], sputtering [5], electron beam [6], electro-deposition [7], isothermal closed space sublimation [8], SILAR method [9], brush plated [2], thermal evaporation [10][11][12] and CSS [13]. On the other hand, ion exchange process was recently utilized for doping of ZnTe and other II-VI semiconductors by Cu, Ag and In [10,[13][14][15][16][17][18][19][20][21][22] due to the simplicity and low cost of the method.…”

Ageing effect on mechanically alloyed ZnTe nanocrystals

“…It is also being used as devices of light sources in TV projectors and for signal transmission [3,4]. ZnTe alloys have been prepared by electrodeposition [5], solvothermal process [6,7], thermal evaporation [8], molecular beam epitaxy (MBE) [9], radio-frequency sputtering [10] and mechanical alloying techniques [11,12].…”