Preparation of CdTe Nuclear Detector Material in Thin Film Form using Thermal Evaporation Method
DOI:
https://doi.org/10.18034/mjmbr.v4i1.421Keywords:
Cadmium Telluride, Nuclear detector, Thin filmAbstract
A study is initiated about cadmium telluride (CdTe) materials deposition and characterization for radiation detector application. The CdTe thin film was grown on glass substrate using thermal evaporation technique in vacuum to avoid the inclusion of impurities in the films. Three different samples were prepared where film thickness were 500, 600 and 700 nm measured by insitu quartz crystal thickness monitoring device during deposition process. The structural studies of the films were carried out using (X-ray diffraction) XRD analytical study and optical measurements were performed in the UV-VIS-NIR region using a spectrophotometer. The films grown at room temperature are polycrystalline as found by X-ray diffraction peaks. The optical transmission spectra of CdTe films showed a high transmission of about 85% to 90% in the visible region with a sharp fall near the fundamental absorption at 880 nm wavelength for the 500 and 600 nm films, and fundamental absorption at 1270 nm wavelength for 700 nm film.
Metrics
Downloads
References
Abdul-Kadom, A. H., Allaa, A. A.and Mahdi, M. A. (2009), “Preparation cadmium elluride compound and study structural properties of thermal evaporation thin films.” Iraqi Journal of Physics, Vol.7, No. 9 pp 20-26.
Alnajjar, A. A, Al-Shaikley, F. Y. and Alias, M. F. A. (2012), “Optical properties and photoconductivity of undoped and In-doped CdTe thin films.” Journal of Electron Devices, Vol. 16 pp 1306-1314.
Balkanaski, M. and Wallis, R. F. (2000), “Semiconductor Physics and Applications”, Oxford University Press.
Carchon, R., Moeslinger, M., Bourva, L., Bass, C. and Zendel, M. (2007), “Gamma radiation detectors for safeguards applications.” Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 579, No. 1 pp 380–383. DOI: https://doi.org/10.1016/j.nima.2007.04.086
Gouda, L., Aniruddha,Y. R. and Ramasesha, S.K. (2012), “Correlation between the Solution Chemistry to Observed Properties of CdTe Thin Films Prepared by CBD Method.” Journal of Modern Physics, Vol. 3 pp 1870-1877. DOI: https://doi.org/10.4236/jmp.2012.312235
Hussain, K. M. A., Mahmood, Z. H., Syed, I. M., Begum, T., Faruqe, T. and Parvin, J. (2014), “Thermal vacuum deposition of cadmium telluride thin films solar cell material.” American Journal of Materials Science and Application, Vol. 2 No.6 pp 91-95.
Hussein, M. M.A., Abdullah, M. M. and Mohammed, G. H. (2013), “Effect of Annealing and Deposition Temperature on Structural Properties of CdTe Thin Films Prepared by Thermal Evaporation Method.” Indian Journal of Applied Research, Vol.3 No. 2 pp 319-323.
Katlander, J., Bargholtz, Chr,, Batres-Estrada, G. and Behrooz, K. (2006)., ”Development of Methods to Use CdTe Detectors in Field Measurements”, Journal of Physics Conference Series, Vol. 41 pp 523-526.
Lovergine, N., Prete, P., Tapfer, L., Marzo, F. and Mancin, A. I. (2005),”Hydrogen Transport Vapor Growth and Properties of Thick CdTe Epilayers for RT X-ray Detector Applications”, Cryst Res Tech. Vol. 40 pp 1018-1023. DOI: https://doi.org/10.1002/crat.200410478
Patil, S. S. and Pawer. P. H. (2012), “Effects of thickness on the structural and optical properties of thermally evaporated CdTe thin films”, J. Chemical, Biological and Physical Sciences, Vol.2. No. 2 pp 968-978.
Sathyamoorthya, R. Narayan dass, Sa. K. and Mangalarajb, D. (2003), “Effect of substrate temperature on the structure and optical properties of CdTe thin film”, Solar Energy Materials & Solar Cells, Vol. 76 pp 339–346. DOI: https://doi.org/10.1016/S0927-0248(02)00286-6
Shaaban, E.R., Afify, N., and El-Taher, A. (2009), “Effect of film thickness on microstructure parameters and optical constants of CdTe thin films.” Journal of Alloys and Compounds, Vol. 482 pp 400–404. DOI: https://doi.org/10.1016/j.jallcom.2009.04.033
Singh, S., Kumar, R. and Sood, K. N. (2010) “Structural and electrical studies of thermally evaporated nanostructured CdTe thin films. Thin Solid Films.” Vol. 519 No. pp 1078–1081. DOI: https://doi.org/10.1016/j.tsf.2010.08.047
-- 0 --
