Enhancement in performance of polycarbazole-graphene nanocomposite Schottky diode

Rajiv K. Pandey, Arun Kumar Singh, Rajiv Prakash

Research output: Contribution to journalArticlepeer-review

39 Citations (Scopus)

Abstract

We report formation of polycarbazole (PCz)-graphene nanocomposite over indium tin oxide (ITO) coated glass substrate using electrochemical technique for fabrication of high performance Schottky diodes. The synthesized nanocomposite is characterized before fabrication of devices for confirmation of uniform distribution of graphene nanosheets in the polymer matrix. Pure PCz and PCz-graphene nanocomposites based Schottky diodes are fabricated of configuration Al/PCz/ITO and Al/PCz-graphene nanocomposite/ITO, respectively. The current density-voltage (J-V) characteristics and diode performance parameters (such as the ideality factor, barrier height, and reverse saturation current density) are compared under ambient condition. Al/PCz-graphene nanocomposite/ITO device exhibits better ideality factor in comparison to the device formed using pure PCz. It is also observed that the Al/PCz-graphene nanocomposite/ITO device shows large forward current density and low turn on voltage in comparison to Al/PCz/ITO device.

Original languageEnglish
Article number122120
JournalAIP Advances
Volume3
Issue number12
DOIs
Publication statusPublished - 2013 Dec

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

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