Journal
SYNTHETIC METALS
Volume 212, Issue -, Pages 180-185Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.synthmet.2015.12.018
Keywords
Two-dimensional materials; Thin films; Polymer; Electrical properties
Funding
- Ministry of Science and Technology, Taiwan [103-2112-M-018-003-MY3]
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The effect of incorporation of few-layer black phosphorus (BP) into poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) on conductivity is investigated. BP is a two-dimensional material with high carrier mobility. It is shown that the carrier mobility (mu,) increases significantly while the carrier density does not change substantially at 300K. mu in PEDOT:PSS samples with or without BP addition exhibits a strong temperature dependence, which demonstrates the dominance of tunneling (hopping) at low (high) temperatures. The, high conductivity of PEDOT:PSS samples with the addition of BP is attributed to the arrangement of the high hole-mobility BP sheets that induces the modification of the electron-phonon coupling. (C) 2015 Elsevier B.V. All rights reserved.
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