Click here to view fulltext PDF

Permanent link:
https://www.ias.ac.in/article/fulltext/boms/020/05/0699-0705

Conduction mechanism; polymethyl methacrylate; ferrocene; RS effect; charge transfer complex

The electrical transport behaviour of ferrocene mixed poly (methyl methacrylate) (PMMA) films (≈ 20 µm in thickness) deposited by the isothermal immersion technique has been studied in the temperature range of 333–373 K and field from (2·0–4·0)×10⁴ V/cm. It has been found that at higher fields and temperatures, the observed conduction behaviour could be consistently described by the Richardson-Schottky emission. The increase in current due to doping has been attributed to the formation of charge transfer complexes. The dopant molecules act as an additional trapping centre and provide a link between polymer molecules in amorphous region leading to the formation of charge transfer complex.

P K Khare¹ S K Jain^{1 2} S K Paliwal¹

1. Department of Postgraduate Studies and Research in Physics, Rani Durgavati Vishwavidyalaya, Jabalpur - 482 001, India
2. Central Instrumentation Lab, Dr H S Gaur University, Sagar - 470 003, India

Published

August 1997

Manuscript received

26 August 1996

Manuscript revised

6 January 1997