Wide energy-window view on the density of states and hole mobility of poly(p-phenylene vinylene)

2004/09/09 by Iulian N. Hulea, I. N. Hulea, H. B. Brom +13
Chemistry · Engineering · Materials Science · Physics and Astronomy · #Advanced Memory and Neural Computing #Conducting polymers and applications #Electrochemical Analysis and Applications #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #Soft Condensed Matter (cond-mat.soft) #cond-mat.mtrl-sci #cond-mat.soft

paper · pdf · doi:10.48550/arxiv.cond-mat/0409218

4 pages, 4 figures

arxiv created 2004/09/09 · openalex publication_date 2004/09/09 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

Using an electrochemically gated transistor, we achieved controlled and reversible doping of poly(p-phenylene vinylene) in a large concentration range. Our data open a wide energy-window view on the density of states (DOS) and show, for the first time, that the core of the DOS function is Gaussian, while the low-energy tail has a more complex structure. The hole mobility increases by more than four orders of magnitude when the electrochemical potential is scanned through the DOS.

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