Tuning the band gap of the graphene oxide-chloro aluminum phthalocyanine nanocomposite by reducing the rate of graphene oxide


Aghdam A. H. , Araghi M. E. A. , Vatanpour Sargheın V.

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, vol.115, 2020 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 115
  • Publication Date: 2020
  • Doi Number: 10.1016/j.physe.2019.113636
  • Journal Name: PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Applied Science & Technology Source, Compendex, Computer & Applied Sciences, INSPEC
  • Keywords: Reduced graphene oxide, RGO - ClAlPc nanocomposite, Electrical characterization, CHARGE-LIMITED-CURRENT, REDUCTION, GROWTH, SENSOR
  • Istanbul Technical University Affiliated: No

Abstract

RGO - ClAlPc nanocomposite is synthesized by the chemical reduction of graphene oxide, using hydrazine hydrate in the presence of chloro aluminum phthalocyanine (ClAlPc) and sodium dodecyl sulfate (SDS). In this research study the results of FTIR and UV-Vis spectroscopy showed that C1A1Pc molecules were attached on the RGO sheets by pi-pi interactions. The electrical properties of RGO - ClAlPc nanocomposites were investigated over a temperature range [298 K-393 K]. Then, several interdigital planar devices with 30 nm thickness and 200 mu m interspacing of the electrodes were fabricated from the RGO - ClAlPc nanocomposite. The variation of current versus temperature at a constant 2 V indicated that the band gap of RGO - ClAlPc nanocomposite was changed as a function of the rate of GO reduction in the nanocomposite.