[PDF] Top 20 Effect of co doping on structural and optical properties of zno thin films prepared by chemical spray pyrolysis method

... O) thin films, where x = 0, 4, 6 and 8 % have been successfully deposited on glass substrates by chemical spray pyrolysis (CSP) technique at substrate temperature of (400 °C) and ... See full document

... Figure-6 shows the relation between absorbance (A) and wavelength for the deposited thin films. The absorbance decreases rapidly at short wavelengths corresponding to the energy gap of the film. This ... See full document

... The optical properties of thin films of ZnO undoped and doped Sn was determined from the transmission meas- urement in the range of 300 - 800 ...the optical transmission of the ... See full document

... now spray pyrolysis method is infrequently used as deposition technique although it considered as a simple and comparatively low cost-effective technique ...of Co: ZnO thin film ... See full document

... CdO films, such as sol-gel technique [4], pulsed laser deposition [5], chemical bath deposition [6], and spray pyrolysis ...The chemical spray pyrolysis method is ... See full document

... the films are polycrystalline with (110) as a preferred growth ...the films, the presence of other peaks such as (101), (200) and (002) have also been detected but with substantially lower ...antimony ... See full document

... native doping of the semiconductor due to oxygen vacancies or zinc interstitials is ...favourable properties, including good transparency, high electron mobility, wideband gap and strong room temperature ... See full document

... (CdO) films and Cr doped (with 2,4,6 and 8 wt%) were deposited on glass sub strate at (400 ºC) by chemical spray pyrolysis technique using cadmium acetate as the Cd ...source. effect of ... See full document

... K. Thyagarajan received the M.Sc, M.Phil and Ph.D degrees in Physics from Sri Venkateswara University, Tirupati. He is presently Professor and head in the Department of Physics, JNTUA college of Engineering (Autonomous), ... See full document

... the optical energy gap for the film. The variation of optical energy gap as a function of thickness of ...The optical energy gap of the films varies from ...the optical energy gap which ... See full document

... The optical characterization shows a strong absorbance in the visible range with values of optical gap varied from ...Hall Effect studies shows that increase in mobility, carrier concentration and ... See full document

... The spray rate was maintained at 3.5 ml/min. The thickness of the films was measured by weighing method and Michelson ...probe method. Chemical composition analysis of the film was ... See full document

... structural, optical, electrical, grain size, Hall mobility and Carrier concentration of the ...This method is simple, inexpensive and suitable for water soluble salts and the deployment of ... See full document

... sulfide thin films (as deposited, 300, 400 & 500 C) using monochromatic CuKα (λ = ...the prepared CdS film for different annealed conditions was determined from the stronger peaks of (002) from ... See full document

... ZnS thin films were prepared using chemical bath deposition method and their optical and structural properties were ...ZnS thin films were grown on ... See full document

... oxide thin films constitute a very interesting class of materials because of the various properties they ...oxide films usually have wide band gap ...oxide films varies from insulator ... See full document

... presented in Fig.2 for CdO thin films. The absorption coefficient was increased with the increasing of photon energy and molarity concentration. The values of α for all prepared thin ... See full document

... all films by linear fit in the straight portion of the graph. For the thin film obtained by Electrochemical deposition , the band gap energy values decreasing from ...[16]. Films prepared ... See full document

... 5%. Structural properties of the prepared films were studied by means of x-ray diffraction (XRD), all patterns of the films are ...the films were investigated by using atomic ... See full document

... the films isinduced during the growth of thin filmsby varying displacements of the atoms with respect to their reference lattice ...NiO thin films. The sample prepared with molarity ... See full document