title: NIR-sensitive poly(3,4-ethylenedioxyselenophene) derivatives for transparent photo-thermo-electric converters.
abstract: 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.
authors.affiliation: Active Polymer Center for Pattern Integration, Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, South Korea.
authors.forename: Byeonggwan
authors.initials: B
authors.lastname: Kim
authors.forename: Haijin
authors.initials: H
authors.lastname: Shin
authors.forename: Teahoon
authors.initials: T
authors.lastname: Park
authors.forename: Hanwhuy
authors.initials: H
authors.lastname: Lim
authors.forename: Eunkyoung
authors.initials: E
authors.lastname: Kim
mesh_terms: D000042:Absorption; D004560:Electricity; D055590:Electromagnetic Phenomena; D007259:Infrared Rays; D016566:Organoselenium Compounds / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D013696:Temperature
chemical_list: D016566:Organoselenium Compounds; D011108:Polymers
keywords: NIR conversion into electricity; conductive polymer; electrochromic material; near-infrared absorption; night vision; polyselenophene