Influence of monomer concentration on polycarbazole-polyindole (PCz-PIn) copolymer properties: Application in Schottky diode

Bhavana Gupta, Arun Kumar Singh, Ambrose A. Melvin, Rajiv Prakash

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Copolymerization of carbazole (Cz) and indole (In) is successfully performed through potentiostatic polymerization; and the influence of the monomer concentrations ratio on copolymer formation, is investigated. It is found that 1:2 ratio of Cz to In monomer is optimum for the synthesis of a copolymer with high electroactivity. The structural, optical, thermal and morphological analysis of the copolymers are carried out with UV-vis, FT-IR spectroscopy, differential scanning coulometry (DSC) and scanning electron microscopic (SEM) technique. Electrochemical and thermal studies, further support better redox activity and thermal stability of the copolymer, respectively. We also report fabrication and characterizations of the electrochemically synthesized copolymer in organic Schottky diode with configuration metal Al/copolymer/indium tin oxide coated glass (ITO). The current density-voltage (J-V) characteristic of the Schottky diode is consequential in extracting the electronic parameters and the charge transport mechanism of the devices.

Original languageEnglish
Pages (from-to)56-61
Number of pages6
JournalSolid State Sciences
Volume35
DOIs
StatePublished - 1 Jan 2014
Externally publishedYes

Keywords

  • Copolymer
  • Polycarbazole
  • Polyindole
  • Potentiostatic polymerization
  • Schottky diode

ASJC Scopus subject areas

  • General Chemistry
  • General Materials Science
  • Condensed Matter Physics

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