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<strong>Hydrogen induced resistance and optical transmittance of pulsed laser deposited Pd/Mg thin films</strong>

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Title Statement <strong>Hydrogen induced resistance and optical transmittance of pulsed laser deposited Pd/Mg thin films</strong>
 
Added Entry - Uncontrolled Name Gautam, Yogendra Kumar; Chaudhary Charan Singh University Meerut, Uttar Pradesh, India
Singh, Beer Pal; Chaudhary Charan Singh University Meerut, Uttar Pradesh, India
Kumar, Ashwani ; Institute Instrumentation Centre, Indian Institute of Technology Roorkee, Roorkee India.
Kumar, Anit ; Chaudhary Charan Singh University Meerut, Uttar Pradesh, India
Kumar, Vipin ; Chaudhary Charan Singh University Meerut, Uttar Pradesh, India
UGC Goverment of India
 
Uncontrolled Index Term Palladium; MgH2 thin film; Hydrogen sensor; Pulsed laser deposition; Electrical measurement
 
Summary, etc. The hydrogen detection is an important issue for the societal acceptance of H<sub>2</sub> as energy carrier. In present research work, we have investigated hydrogen sensing and optical properties of Pd/Mg thin films on glass substrate deposited by pulsed laser (PL). As-deposited thin films have been exposed (hydrogenation) to H<sub>2</sub> gas (2 bar) at room temperature in a hydrogenation unit. Hydrogenated and dehydrogenated (at different temperatures) samples have been characterized using X-ray diffractometer (XRD), field-emission scanning electron microscopy (FE-SEM), UV-Vis-NIR spectrophotometer, atomic force microscopy (AFM). XRD results confirm the formation of hydride (MgH<sub>2</sub>) tetragonal phase upon hydrogenation of Pd/Mg films. Hydrogen induced resistance response of Pd/Mg films has been measured in-situ during hydrogenation/dehydrogenation process by using two- probe electrical method. The response time (sensitivity) of Pd/Mg films for hydrogen gas is ~ 60 s at room temperature. The study of optical transmittance of hydrogenated Pd/Mg films indicates their switchable mirror behavior.
 
Publication, Distribution, Etc. Applied Innovative Research (AIR)
2019-09-18 12:24:11
 
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http://op.niscair.res.in/index.php/AIR/article/view/25778
 
Data Source Entry Applied Innovative Research (AIR); ##issue.vol## 1, ##issue.no## 2 (2019): Applied Innovative Research (AIR)
 
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