eprintid: 3396
rev_number: 8
eprint_status: archive
userid: 314
dir: disk0/00/00/33/96
datestamp: 2019-01-04 00:18:29
lastmod: 2019-01-04 00:21:14
status_changed: 2019-01-04 00:18:29
type: article
metadata_visibility: show
creators_name: Lam, Minh Long
creators_name: Nguyen, Nang Dinh
creators_name: Tran, Quang Trung
creators_id: dinhnn@vnu.edu.vn
title: Characterization of NH3 sensing properties of P3HT+rGO+CNT composite films made by spin-coating
ispublished: pub
subjects: Phys
divisions: fac_physic
abstract: Thin films of poly(3-hexylthiophene) (P3HT) incorporated with reduced graphene oxide (rGO) and multi-walled carbon nanotubes (CNTs) were prepared by spin-coating technique.
Atomic force microscope (AFM) surface morphology, UV-Vis spectra and NH3 gas sensing of the films were studied. Results showed that the P3HT embedded with a content of 20 wt.% of rGO and 10 % of CNTs (abbreviated to P3GC) resulted in the formation of nanostructured composites,
exhibiting 1.50 nm-roughness surface and a semiconducting material with a bandgap of 1.92eV. These structure and composition of the P3GC film are appropriate for making film sensors, whose resistance changes as a function of gas concentration. Monitoring ammonia gas by the sensors showed that the responding time of the sensing reached a value as fast as 30 s, the response at ammonia gas content of 10 ppm attained a value as large as 0.8% and the relative sensitivity was
of 0.05 %/ppm.
date: 2018-12-15
date_type: published
full_text_status: public
publication: Communications in Physics
volume: 28
number: 4
pagerange: 369-377
refereed: TRUE
issn: 0868-3166
citation:   Lam, Minh Long and Nguyen, Nang Dinh and Tran, Quang Trung  (2018) Characterization of NH3 sensing properties of P3HT+rGO+CNT composite films made by spin-coating.  Communications in Physics, 28  (4).   pp. 369-377.  ISSN 0868-3166     
document_url: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/3396/1/06-LMLong%20et%20al-CJP-%20Vol%2028-No%204-2018.pdf