Electronic Properties and Junction Behavior of Polyanthranilic Acid/Metal Contacts

Author

Singh, Arun Kumar ; Prakash, Rajiv ; Dwivedi, A.D.D. ; Chakrabarti, P.

Author_Institution

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

Volume

29

Issue

6

fYear

2008

fDate

6/1/2008 12:00:00 AM

Firstpage

571

Lastpage

574

Abstract

Polyanthranilic acid (PANA), a self-doped processible conducting polymer, was synthesized and used for the first time for fabrication of contacts with configurations of (Al, Ti, Sn metal)/PANA/indium tin oxide-coated glass. The current-voltage (I-V) characteristics were measured by using microprobe arrangements, and the diode performance parameters were extracted. The I-V characteristics of the aforementioned configuration exhibited a rectifying contact for the case of Al and Ti metal contacts but an ohmic contact for the case of Sn metal contact. The electroactivity of PANA was carried out in acidic solution, and film morphology was studied by using atomic force microscope. UV-Vis spectroscopic technique was used to obtain the optical bandgap of the polymer.

Keywords

atomic force microscopy; electrical contacts; energy gap; UV-Vis spectroscopic technique; atomic force microscope; current-voltage characteristics; diode performance parameters; electroactivity; electronic properties; film morphology; junction behavior; microprobe arrangements; polyanthranilic acid-metal contacts; polymer optical bandgap; rectifying contact; self-doped processible conducting polymer; tin oxide-coated glass; Atomic force microscopy; Current measurement; Diodes; Fabrication; Glass; Indium; Ohmic contacts; Optical films; Optical polymers; Tin; Conducting polymer; Schottky contact; indium tin oxide (ITO); ohmic contact; polyanthranilic acid (PANA);

fLanguage

English

Journal_Title

Electron Device Letters, IEEE

Publisher

ieee

ISSN

0741-3106

Type

jour

DOI

10.1109/LED.2008.922730

Filename

4526776