International Journal of Education and Science Research Review E-ISSN 2348-6457 Volume-3 Issue-6 December- 2016 P-ISSN 2348-1817 www.ijesrr.org Email- editor@ijesrr.org Copyright@ijesrr.org Page 99 HEXAGONAL WURTZITE MN DOPED ZnO NANOSTRUCTURED THIN FILM FOR FERROMAGNETIC AND LPG SENSING APPLICATIONS Pankaj Varshney Dr. Ramphal Sharma Assistant Professor of Physics Research Supervisor SRM University, Modinagar Thin film and Nanotechnology Laboratory & Research Scholar Department of Physics Thin film and Nanotechnology Laboratory, Dr. Babasaheb Ambedkar Marathwada University Department of Physics, Aurangabad Maharashtra Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, Maharashtra ABSTRACT: An economical environment friendly and easy to apply so called SILAR (successive ionic layer adsorption and reaction) method has been used to grow Mn doped ZnO nanostructured thin film over a glass substrate. The XRD-characterization reflects its Hexagonal wurtzite crystalline structure. The addition of deliberate amount of Mn concentration in to ZnO, increases the LPG sensing response of Mn doped Zno compound deposited as nanostructured layer at lower temperatures. This compound also exhibit ferromagnetic behavior at room temperature with as determined saturated magnetization (M s ) at 601.21 E-6 emu/cm2, which is in good agreement of BMPs model. KEYWORDS: SILAR, XRD characterization, LPG sensing & response, ferromagnetism, BMPs model. INTRODUCTION A number of techniques have been explained to synthesize one dimensional zinc oxide nanostructures. Techniques like physical vapor deposition (1-3), chemical vapor deposition (4-6), molecular beam epitaxy (MBE) [7], pulsed laser deposition [8, 9], sputtering (10) and flux methods (11) etc. have been used earlier. In General here mentioned physical deposition techniques need more man-power and costly, requiring complicated instrumentation and vacuum system. On the other hand, wet chemical coating techniques are simple, eco-friendly and cost effective and thus have become the methods of choice. Amongst these techniques, Successive Ionic Layer Adsorption and Reaction is gaining popularity for its simplicity and environmental friendly procedure for obtaining stoichiometric Mn doped ZnO thin-film. 1. EXPERIMENTAL DETAIL 1.1 Synthesis The ZnO thin film was deposited on glass substrate by SILAR technique. 0.015 M ZnSO 4 solution was prepared in 50mL distilled water which was considered as cationic precursor. Distilled water was considered as anionic precursor. Two to three drops of triethanolamine (TEA) was added to the ZnSO 4 Solution. pH was kept at 11 to 12 by adding ammonia. The glass slides were cleaned by labolene and then rinsed by distilled water and further by acetone. The glass slides were dipped in each precursor for 30sec, such 60 cycles were repeated and zinc oxide thin film was obtained. After preparing 0.015M MnSO 4 solution and putting the zinc oxide thin film for 1 min duration in it, desired Mn doped ZnO thin film was obtained. 2. REULTS AND DISCUSSION 2.1 Characterization using X-ray diffraction analysis Figure 1 indicates the X-Ray Diffraction pattern of as synthesized sample on the glass substrate. The X-Ray diffraction peaks observed close to 2θ = 31.66, 34.6, 36.2 and 47.0 are attributed to the (100), (002), (101) and (102) planes respectively which matches well with the JCPDS card No. 80−0075. The XRD pattern