International Journal of Science, Engineering and Computer Technology

Kanta Rathee ¹, B. P. Malik ¹, Mukesh Kumar ²

Affiliations
1 Department of Applied Sciences, DCRUST, Murthal, IN
2 Sonepat, Electronic Science Department, Kurukshtera University, Kurukshtera, IN

Abstract

We have studied and characterized the process of deposition of tantalum oxide thin flim.For deposition of tantalum pentaoxide thin film we have used the DC magnetron sputtering technique. Oxygen flow rate has been varied to observe the effect on crystallinity ,deposition rate and refractive index of the deposited film. I-V characterstics have been reported using I-V set. The value of leakage current ranges from I =(0 to 2.33E-05 A) with crossponding values of electric field density E = (0 to 5 MV/Cm2). A wide energy band gap has been obtained (4.4eV ) using the transmittance of the deposited film.

Keywords

Oxygen Flow Rate, Ta₂O₅ Thin Films, DC Sputtering Method.

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Meenakshi Choudhary ¹, Monika ², Mukesh Kumar ², Sangeeta Prasher ³

Affiliations
1 Department of Physics, Singhania University, Rajasthan, IN
2 Departments of Physics, Lovely Professional University, Phagwara, IN
3 Departments of Physics, Kanya Maha Vidyalaya, Jalandhar, IN

Abstract

In order to obtain the fundamental information on the modification of polymers due to irradiation, X-ray diffraction, FTIR (Fourier Transform Infrared Spectroscopy), UV-visible spectral analysis has been employed to CR-39(Columbia Resin) polymer irradiated by IR (infrared) radiations. The effects of infrared radiations on the physical, optical and chemical properties have been reported in the present work. The results have been discussed on the basis of scission and cross linking induced in the polymer during infrared exposure and a brief mechanism has been suggested, where ever possible. The changes in intensity of FTIR absorption bands related to particular groups and bonds have been discussed. The shift in the absorption edge towards longer wavelength in UV-VIS spectra of the irradiated polymers has been observed. The crystallite size of the pristine and IR irradiated CR-39 samples has been calculated from XRD.

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