کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7940976 | 1513198 | 2017 | 21 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Study on swift heavy ions induced modifications of Ag-ZnO nanocomposite thin film
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In the present work, swift heavy ion (SHI) irradiation induced modifications in structural and optical properties of Ag-ZnO nanocomposite thin films have been investigated. Ag-ZnO nanocomposite (NCs) thin films were synthesized by RF magnetron sputtering technique and irradiated with 100Â MeV Ag7+ ions at three different fluences 3Â ÃÂ 1012, 1Â ÃÂ 1013 and 3Â ÃÂ 1013 ions/cm2. Rutherford Backscattering Spectrometry revealed Ag concentration to be â¼8.0Â at.%, and measured thickness of the films was â¼55Â nm. Structural properties of pristine and irradiated films have been analyzed by X-ray diffraction analysis and found that variation in crystallite size of the film with ion irradiation. X-ray photoelectron spectroscopy (XPS) indicates the formation of Ag-ZnO nanocomposite thin film with presence of Ag, Zn and O elements. Oxidation state of Ag and Zn also estimated by XPS analysis. Surface plasmon resonance (SPR) of Ag nanoparticle has appeared at â¼475Â nm in the pristine thin film, which is blue shifted by â¼30Â nm in film irradiated at fluence of 3Â ÃÂ 1012 ions/cm2 and completely disappeared in film irradiated at higher fluences, 1Â ÃÂ 1013 and 3Â ÃÂ 1013 ions/cm2. A marginal change in the optical band gap of Ag-ZnO nanocomposite thin film is also found with increasing ion fluence. Surface morphology of pristine and irradiated films have been studied using Atomic Force Microscopy (AFM). Raman and Photo-luminance (PL) spectra of nanocomposite thin films have been investigated to understand the ion induced modifications such as lattice defects and disordering in the nanocomposite thin film.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Superlattices and Microstructures - Volume 103, March 2017, Pages 195-204
Journal: Superlattices and Microstructures - Volume 103, March 2017, Pages 195-204
نویسندگان
S.K. Singh, R. Singhal, V.V. Siva Kumar,