Nikita Kar Chowdhury;Aditya Kumar Singh;Arnab Hazra;Basanta Bhowmik
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引用次数: 0
Abstract
In the present paper,
$TiO_{2}$
nanoparticles were synthesized through low cost hydrothermal method at 150°C. Structural, morphological and optical properties of the grown materials were characterized through X-ray diffraction (XRD), Field emission scanning electron microscopy (FESEM), Raman Spectroscopy, and Photoluminescence spectroscopy, respectively. X-ray diffraction confirms the anatase phase with average crystalline size of 6.8 nm. Non-uniform particles having numerous pores with large number of active sites offered superior capability to detect methanol even at lower concentrations. Band gap of the material were found to be 3.4 eV.
$TiO_{2}$
nanoparticles in planner structure were investigated towards methanol (1-100 ppm) at the temperature ranging from (25-150°C). Sensor was found to be maximum responsive with response magnitude of 85% at 100°C and 47% at room temperature towards 100 ppm of methanol. At 1 ppm of methanol, sensor response was found to be 20%. Sensor response towards methanol was correlated with the surface state of nanoparticles with HOMO-LUMO energy.
期刊介绍：
The scope of the publication includes, but is not limited to Reliability of: Devices, Materials, Processes, Interfaces, Integrated Microsystems (including MEMS & Sensors), Transistors, Technology (CMOS, BiCMOS, etc.), Integrated Circuits (IC, SSI, MSI, LSI, ULSI, ELSI, etc.), Thin Film Transistor Applications. The measurement and understanding of the reliability of such entities at each phase, from the concept stage through research and development and into manufacturing scale-up, provides the overall database on the reliability of the devices, materials, processes, package and other necessities for the successful introduction of a product to market. This reliability database is the foundation for a quality product, which meets customer expectation. A product so developed has high reliability. High quality will be achieved because product weaknesses will have been found (root cause analysis) and designed out of the final product. This process of ever increasing reliability and quality will result in a superior product. In the end, reliability and quality are not one thing; but in a sense everything, which can be or has to be done to guarantee that the product successfully performs in the field under customer conditions. Our goal is to capture these advances. An additional objective is to focus cross fertilized communication in the state of the art of reliability of electronic materials and devices and provide fundamental understanding of basic phenomena that affect reliability. In addition, the publication is a forum for interdisciplinary studies on reliability. An overall goal is to provide leading edge/state of the art information, which is critically relevant to the creation of reliable products.
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