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Title: Controlling the photoconductivity: Graphene oxide and polyaniline self assembled intercalation

Abstract

We report on controlling the optoelectronic properties of self-assembled intercalating compound of graphene oxide (GO) and HCl doped polyaniline (PANI). Optical emission and X-ray diffraction studies revealed a secondary doping phenomenon of PANI with –OH and –COOH groups of GO, which essentially arbitrate the intercalation. A control on the polarity and the magnitude of the photoresponse (PR) is harnessed by manipulating the weight ratios of PANI to GO (viz., 1:1.5 and 1:2.2 are abbreviated as PG1.5 and PG2.2, respectively), where ±PR = 100(R{sub Dark} – R{sub UV-Vis})/R{sub Dark} and R corresponds to the resistance of the device in dark or UV-Vis illumination. To be precise, the PR from GO, PANI, PG1.5, and PG2.2 are +34%, −111%, −51%, and +58%, respectively.

Authors:
 [1];  [1];  [2];  [1];  [2]
  1. UNAM-National Nanotechnology Research Centre, Bilkent University, Ankara 06800 (Turkey)
  2. (Turkey)
Publication Date:
OSTI Identifier:
22420234
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 5; Other Information: (c) 2015 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; ANILINE; CLATHRATES; DOPED MATERIALS; GRAPHENE; OXIDES; PHOTOCONDUCTIVITY; X-RAY DIFFRACTION

Citation Formats

Vempati, Sesha, E-mail: svempati01@qub.ac.uk, Ozcan, Sefika, Department of Polymer Science and Technology, Middle East Technical University, Ankara 06800, Uyar, Tamer, E-mail: uyar@unam.bilkent.edu.tr, and Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800. Controlling the photoconductivity: Graphene oxide and polyaniline self assembled intercalation. United States: N. p., 2015. Web. doi:10.1063/1.4907260.
Vempati, Sesha, E-mail: svempati01@qub.ac.uk, Ozcan, Sefika, Department of Polymer Science and Technology, Middle East Technical University, Ankara 06800, Uyar, Tamer, E-mail: uyar@unam.bilkent.edu.tr, & Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800. Controlling the photoconductivity: Graphene oxide and polyaniline self assembled intercalation. United States. doi:10.1063/1.4907260.
Vempati, Sesha, E-mail: svempati01@qub.ac.uk, Ozcan, Sefika, Department of Polymer Science and Technology, Middle East Technical University, Ankara 06800, Uyar, Tamer, E-mail: uyar@unam.bilkent.edu.tr, and Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800. Mon . "Controlling the photoconductivity: Graphene oxide and polyaniline self assembled intercalation". United States. doi:10.1063/1.4907260.
@article{osti_22420234,
title = {Controlling the photoconductivity: Graphene oxide and polyaniline self assembled intercalation},
author = {Vempati, Sesha, E-mail: svempati01@qub.ac.uk and Ozcan, Sefika and Department of Polymer Science and Technology, Middle East Technical University, Ankara 06800 and Uyar, Tamer, E-mail: uyar@unam.bilkent.edu.tr and Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800},
abstractNote = {We report on controlling the optoelectronic properties of self-assembled intercalating compound of graphene oxide (GO) and HCl doped polyaniline (PANI). Optical emission and X-ray diffraction studies revealed a secondary doping phenomenon of PANI with –OH and –COOH groups of GO, which essentially arbitrate the intercalation. A control on the polarity and the magnitude of the photoresponse (PR) is harnessed by manipulating the weight ratios of PANI to GO (viz., 1:1.5 and 1:2.2 are abbreviated as PG1.5 and PG2.2, respectively), where ±PR = 100(R{sub Dark} – R{sub UV-Vis})/R{sub Dark} and R corresponds to the resistance of the device in dark or UV-Vis illumination. To be precise, the PR from GO, PANI, PG1.5, and PG2.2 are +34%, −111%, −51%, and +58%, respectively.},
doi = {10.1063/1.4907260},
journal = {Applied Physics Letters},
number = 5,
volume = 106,
place = {United States},
year = {Mon Feb 02 00:00:00 EST 2015},
month = {Mon Feb 02 00:00:00 EST 2015}
}