Madelung and Hubbard interactions in polaron band model of doped organic semiconductors

Rui-Qi Png; Mervin C.Y. Ang; Meng-How Teo; Kim-Kian Choo; Cindy Guanyu Tang; Dagmawi Belaineh; Lay-Lay Chua; Peter K.H. Ho

doi:10.1038/ncomms11948

Nature Communications (Sep 2016)

Madelung and Hubbard interactions in polaron band model of doped organic semiconductors

Rui-Qi Png,
Mervin C.Y. Ang,
Meng-How Teo,
Kim-Kian Choo,
Cindy Guanyu Tang,
Dagmawi Belaineh,
Lay-Lay Chua,
Peter K.H. Ho

Affiliations

Rui-Qi Png: Department of Physics, National University of Singapore
Mervin C.Y. Ang: Solar Energy Research Institute of Singapore (SERIS), National University of Singapore
Meng-How Teo: Department of Physics, National University of Singapore
Kim-Kian Choo: Department of Chemistry, National University of Singapore
Cindy Guanyu Tang: Department of Physics, National University of Singapore
Dagmawi Belaineh: Department of Physics, National University of Singapore
Lay-Lay Chua: Department of Physics, National University of Singapore
Peter K.H. Ho: Department of Physics, National University of Singapore

DOI: https://doi.org/10.1038/ncomms11948
Journal volume & issue: Vol. 7, no. 1
pp. 1 – 9

Abstract

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Conducting polymers with high workfunction are desirable for making ohmic contacts at electrode/organic semiconductor interfaces for electronic applications. Png et al. show workfunction up to 6 eV in hole-doped triarylamine-fluorene copolymers, explained by including electron correlation effect.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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