The Experts below are selected from a list of 2502 Experts worldwide ranked by ideXlab platform

B A Trofimov - One of the best experts on this subject based on the ideXlab platform.

Yong-min Liang - One of the best experts on this subject based on the ideXlab platform.

Vijay V. Kondalkar - One of the best experts on this subject based on the ideXlab platform.

  • Nanohybrids of Pt-Functionalized Al2O3/ZnO Core–Shell Nanorods for High-Performance MEMS-Based Acetylene Gas Sensor
    ACS Applied Materials & Interfaces, 2019
    Co-Authors: Vijay V. Kondalkar, Le Thai Duy
    Abstract:

    Metal oxide nanostructures are the most promising materials for the fabrication of advanced Gas sensors. However, the main challenge of these Gas sensors is humidity interference and issues related to the selectivity and high operating temperature, which limits their response in real-time applications. In this study, we proposed nanohybrids of Pt-functionalized Al2O3/ZnOcore–shell nanorods (NRs) for a real-time humidity-independent Acetylene Gas sensor. The core ZnO NRs have been fabricated on microelectromechanical system (MEMS) microheater, followed by a coating of a thin nanoscale moisture-blocking conformal Al2O3 shell by atomic layer deposition (ALD) and decoration of Pt NPs using photochemical deposition and e-beam evaporation. Prior to the fabrication, a COMSOL simulation was performed to optimize the microheater design and moisture-blocking layer thickness. A comparative study of the decoration of Pt NPs on the ZnO surface by photochemical (s-Pt/ZnO) and e-beam evaporation (e-Pt/ZnO) and a Al2O3 t...

  • nanohybrids of pt functionalized al2o3 zno core shell nanorods for high performance mems based Acetylene Gas sensor
    ACS Applied Materials & Interfaces, 2019
    Co-Authors: Vijay V. Kondalkar
    Abstract:

    Metal oxide nanostructures are the most promising materials for the fabrication of advanced Gas sensors. However, the main challenge of these Gas sensors is humidity interference and issues related to the selectivity and high operating temperature, which limits their response in real-time applications. In this study, we proposed nanohybrids of Pt-functionalized Al2O3/ZnOcore–shell nanorods (NRs) for a real-time humidity-independent Acetylene Gas sensor. The core ZnO NRs have been fabricated on microelectromechanical system (MEMS) microheater, followed by a coating of a thin nanoscale moisture-blocking conformal Al2O3 shell by atomic layer deposition (ALD) and decoration of Pt NPs using photochemical deposition and e-beam evaporation. Prior to the fabrication, a COMSOL simulation was performed to optimize the microheater design and moisture-blocking layer thickness. A comparative study of the decoration of Pt NPs on the ZnO surface by photochemical (s-Pt/ZnO) and e-beam evaporation (e-Pt/ZnO) and a Al2O3 t...

  • Fabrication of Platinum Functionalized Zinc Oxide Nanorods for High-Performance Acetylene Gas Sensor Integrated with Microheater
    2019 20th International Conference on Solid-State Sensors Actuators and Microsystems & Eurosensors XXXIII (TRANSDUCERS & EUROSENSORS XXXIII), 2019
    Co-Authors: Vijay V. Kondalkar
    Abstract:

    The rapidly expanding infrastructure dictates the need for ubiquitous distributed low power, low-cost, high sensitivity Gas sensor. In the past few decades, metal-oxide semiconductors have been investigated widely as Gas sensing materials. However, their low sensitivity and high operating temperature (about 400-500 °C) have significant limitations. To resolve these problems, here, we report the Pt activated ZnO nanorods (NRs) as a highly sensitive material for MEMS compatible miniaturized Acetylene Gas sensor at low operating temperature. Further, before fabrication COMSOL simulation was performed to optimize the micro-heater design. The fabricated Pt functionalized ZnO NRs based sensor exhibits an ultrahigh response toward 1 ppm Acetylene with faster response and recovery compared to state-of-the-art sensing characteristics.

Elena Yu. Schmidt - One of the best experts on this subject based on the ideXlab platform.

Alexander V Vashchenko - One of the best experts on this subject based on the ideXlab platform.