Electronic Properties and Photoresponse of Polycarbazole-Multiwalled Carbon Nanotube Nanocomposite/Aluminum Schottky Diode

Author

Singh, Arun Kumar ; Chakrabarti, P. ; Prakash, Rajiv

Author_Institution

Sch. of Mater. Sci. & Technol., Banaras Hindu Univ., Varanasi, India

Volume

32

Issue

5

fYear

2011

fDate

5/1/2011 12:00:00 AM

Firstpage

593

Lastpage

595

Abstract

We report an electrochemically synthesized polycarbazole (PCz)-nitrogen doped multiwalled carbon nanotube (n-MWNT) nanocomposite-based organic Schottky diode. The current-voltage (J-V) and capacitance-voltage (C-V) characteristics of the Schottky diode were studied and subsequently used for extracting the electronic parameters of the device. A significant enhancement in the photoresponse of the device in comparison to pure PCz Schottky contact was observed under illumination with a laser source operating at 650 nm having an incident optical power density of 10 mW/cm². The nanocomposite was studied for its structural/morphological properties using scanning electron microscope and high-resolution transmission electron microscope.

Keywords

Schottky diodes; aluminium compounds; carbon nanotubes; nanocomposites; nitrogen compounds; polymers; scanning electron microscopy; transmission electron microscopy; Al; capacitance-voltage characteristic; current-voltage characteristic; distance 650 nm; electronic property; optical power density; photoresponse; polycarbazole-multiwalled carbon nanotube nanocomposite-aluminum Schottky diode; scanning electron microscope; structural-morphological property; transmission electron microscope; Carbon nanotubes; Indium tin oxide; Nanoscale devices; Optical polymers; Scanning electron microscopy; Schottky diodes; Multiwalled carbon nanotubes; Schottky diode; nano-composites; polycarbazole (PCz);

fLanguage

English

Journal_Title

Electron Device Letters, IEEE

Publisher

ieee

ISSN

0741-3106

Type

jour

DOI

10.1109/LED.2011.2112330

Filename

5732662