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Title: NH{sub 3} sensor based on CSA doped PANi-SnO{sub 2} nanohybrid

The PANi-SnO{sub 2} hybrid nanocomposite based thin films doped with 10–50 wt % CSA were deposited on the glass substrates using the spin coating technique. The sensor response in relation to the CSA doping concentration and the gas concentration has been systematically studied. A significant sensitivity (91%) towards 100 ppm NH{sub 3} operating at room temperature is observed for the 30 wt % CSA doped PANi-SnO2 nanohybrid. The sensing mechanism of CSA doped PANi-SnO{sub 2} materials to NH{sub 3} was presumed to be the effect of p–n heterojunctions.
Authors:
; ; ; ; ;  [1] ;  [2]
  1. Functional Materials Research Laboratory, School of Physical Sciences, Solapur University, Solapur-413255 (India)
  2. Crystal Technology Section, Technical Physics Division, Bhabha Atomic Research Centre, Mumbai-400085 (India)
Publication Date:
OSTI Identifier:
22271062
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1591; Journal Issue: 1; Conference: 58. DAE solid state physics symposium 2013, Patiala, Punjab (India), 17-21 Dec 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 77 NANOSCIENCE AND NANOTECHNOLOGY; AMMONIA; COMPOSITE MATERIALS; CONCENTRATION RATIO; DOPED MATERIALS; GLASS; HETEROJUNCTIONS; NANOSTRUCTURES; SENSITIVITY; SENSORS; SPIN-ON COATING; SUBSTRATES; TEMPERATURE RANGE 0273-0400 K; THIN FILMS; TIN OXIDES