eprintid: 2858
rev_number: 8
eprint_status: archive
userid: 333
dir: disk0/00/00/28/58
datestamp: 2017-12-27 01:23:22
lastmod: 2017-12-27 01:23:22
status_changed: 2017-12-27 01:23:22
type: article
metadata_visibility: show
creators_name: Nguyen, Nang Dinh
creators_name: Lam, Minh Long
creators_id: dinhnn@vnu.edu.vn
title: Characterization of Humidity Sensing of Polymeric GrapheneQuantum-Dots Composites Incorporated with Silver Nanowires
ispublished: pub
subjects: Phys
divisions: fac_physic
abstract: Graphene quantum dots (GQDs) were synthesized and incorporated with polyethylenedioxythiophene:poly(4-styrenesulfonate) (PEDOT:PSS), Ag  nanowires (AgNWs) to form a composite that can be used for enhancement of relative humidity (RH%) sensing. The composite films contained bulk heterojunctions of AgNW/GQD and AgNW/PEDOT:PSS. The sensors made from the composites responded well to relative humidity in a range from 10% to 50% at room temperature. With  an AgNWs content ranging from 0.2 wt.% to 0.4 wt.%  and 0.6 wt.%, the sensitivity of the relative humidity sensing devices based on AgNWs-doped GQDs+PEDOT:PSS composites was increased from 5.5% to 6.5 % and 15.2 %, respectively. The response time of the composite sensors was much improved due to AgNWs doping in the composites. For the 0.6 wt.% AgNWs-doped GQDs+PEDOT:PSS films, the best value of the recovery time was found to be of 30 s.
date: 2017-08-30
date_type: submitted
publisher: Vietnam National University Hanoi
full_text_status: public
publication: VNU Journal of Science: Mathematics – Physics
pagerange: 52-60
refereed: TRUE
issn: 0866-8612
funders: Vietnam National Foundation for Science and Technology
projects: 103.02-2013.39
citation:   Nguyen, Nang Dinh and Lam, Minh Long  (2017) Characterization of Humidity Sensing of Polymeric GrapheneQuantum-Dots Composites Incorporated with Silver Nanowires.  VNU Journal of Science: Mathematics – Physics .   pp. 52-60.  ISSN 0866-8612     
document_url: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/2858/1/02-NNDinh-LMLong%20et%20al-VNU-J-Sci-2017.pdf