Electric conduction via shallow traps in an undoped conjugated PPP-type ladder-polymer
- 14 October 1994
- journal article
- Published by IOP Publishing in Journal of Physics D: Applied Physics
- Vol. 27 (10) , 2185-2189
- https://doi.org/10.1088/0022-3727/27/10/030
Abstract
Shallow traps for p-type charge carriers were found in a ladder-type poly(p-phenylene). Using the thermally stimulated current technique a trap depth of 0.1 eV was determined. The electrical current of a gold-ladder-polymer-gold structure at field strengths of 4*104 V cm-1 is space-charge limited. We propose a Gaussian trap distribution centred at 0.1 eV above the valence band edge.Keywords
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