Ph.D. Thesis Colloquium
Dear All,
DEPARTMENT OF INSTRUMENTATION AND APPLIED PHYSICS
Ph.D. Thesis Colloquium
NAME OF THE CANDIDATE : Mrs. Suma M.N.
DEGREE : Ph.D.(ERP)
TITLE OF THE THESIS : Synthesis, Characterization and Optimization of ZnO Thin
Film & Nanowire Array for Dynamic Pressure Sensing
Application.
SUPERVISORS : Prof. S. Asokan & Prof. K.Rajanna (Hon)
DATE & TIME : Monday, 23rd December 2019 at 03:30 P.M.
VENUE : Lecture Hall – 2, Dept. of Instrumentation and Applied
Physics.
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ABSTRACT
ZnO is one of the piezoelectric materials with promising features to meet future world’s requirement. In the last few years, extensive investigations had been performed regarding the synthesis of thin film and nanostructures of ZnO. However, a comprehensive study on their device application is not available in the literature. The present research work focuses on the optimisation of the fabrication processes and experimental evaluation of the packaged dynamic sensors realised using ZnO thin film and nanowire array. ZnO thin films were fabricated using RF reactive magnetron sputtering for four different thicknesses and material characterisation of these films were also conducted. These films were packaged as dynamic pressure sensors and were experimentally evaluated for their suitability for dynamic pressure sensing applications. A similar approach was followed to study the suitability of ZnO nanowire array for dynamic pressure sensing application. ZnO nanowire array was synthesised using hydrothermal method, characterised for its material properties & the as-synthesised nanowire array was tested for dynamic pressure sensing application after packaging. Dynamic pressure sensors realised using ZnO thin film are on par with the commercially available dynamic pressure sensors. ZnO nanowire array based sensor also showed promising results. This research work concludes that ZnO, in its thin film and nanowire form, is highly suitable for the development of dynamic pressure sensors and recommend its commercial deployment.
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ALL ARE WELCOME
CHAIRMAN
Date/Time
Date(s) - 23/12/2019
3:30 pm - 5:00 pm
Lecture Hall 2
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