CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Compatibility and optoelectronic of ZnSe nano crystalline thin film |
Taj Muhammad Khana, Tayyaba BiBib |
a National Institute of Laser and Optronics (NILOP), P.O. Nilore 45650, Islamabad, Pakistan; b Department of Chemistry, Peshawar University, P.O. Peshawar 45000, Pakistan |
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Abstract We report the room temperature synthesis of zinc selenide (ZnSe) nano crystalline thin film on quartz by using a relatively simple and low cost closed space sublimation process (CSSP). The compatibility of the prepared thin films for optoelectronic applications was assessed by X-ray diffraction (XRD), atomic force microscope (AFM), scanning electron microscope (SEM), Raman spectroscopy, photoluminescence, and Fourier transform infrared spectroscopy (FT-IR). The XRD confirmed that the films were polycrystalline with the preferential orientation along the (111) plane corresponding to the cubic phase (2θ = 27.28°). The AFM indicated that the ZnSe film presented a smooth and compact morphology with RMS roughness 19.86 nm. The longitudinal optical phonon modes were observed at 247 cm-1 and 490 cm-1 attributed to the cubic structured ZnSe. The Zn-Se stretching band was confirmed by the FT-IR. The microstructure and compositional analysis was made with the SEM. The grain size, dislocation density, and strain calculated were co-related. All these properties manifested a good quality, high stability, finely adhesive, and closely packed structured ZnSe thin film for optoelectronic applications.
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Received: 26 August 2011
Revised: 12 June 2012
Accepted manuscript online:
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PACS:
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73.61.Ga
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(II-VI semiconductors)
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74.25.nd
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(Raman and optical spectroscopy)
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78.30.Fs
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(III-V and II-VI semiconductors)
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Corresponding Authors:
Taj Muhammad Khan
E-mail: tajakashne@gmail.com
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Cite this article:
Taj Muhammad Khan, Tayyaba BiBi Compatibility and optoelectronic of ZnSe nano crystalline thin film 2012 Chin. Phys. B 21 097303
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