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NIR‐Sensitive Poly(3,4‐ethylenedioxyselenophene) Derivatives for Transparent Photo‐Thermo‐Electric Converters
Author(s) -
Kim Byeonggwan,
Shin Haijin,
Park Teahoon,
Lim Hanwhuy,
Kim Eunkyoung
Publication year - 2013
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201301834
Subject(s) - materials science , electrochromism , photothermal therapy , optoelectronics , thermoelectric effect , absorption (acoustics) , polymer , doping , infrared , nanotechnology , optics , electrode , composite material , chemistry , physics , thermodynamics
Electrochromism, photothermal effect, and thermoelectric properties of hexyl‐derivatized poly(3,4‐ethylenedioxyselenophene) are investigated by precisely controlling the morphology. These properties are clearly demonstrated by controlling the applied electrical potential of the polymer films. Especially, the doped polymer film at –0.1 V reveals the highest photothermal conversion efficiency and a power factor of 42.5% and 354.7 μW m −1 K −2 , respectively. Efficient visible to near‐infrared absorption, photon to heat, and heat to electric conversion has been realized in one film that could benefit in exploiting multifunctional film displays, invisible NIR sensors, photodynamic theragnosis, and thermoelectric devices.