title: Highly Conductive PEDOT:PSS Films with 1,3-Dimethyl-2-Imidazolidinone as Transparent Electrodes for Organic Light-Emitting Diodes.
abstract: Highly conductive poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (
  PSS) films as transparent electrodes for organic light-emitting diodes (OLEDs) are doped with a new solvent 1,3-dimethyl-2-imidazolidinone (DMI) and are optimized using solvent post-treatment. The DMI doped
  PSS films show significantly enhanced conductivities up to 812.1 S cm(-1) . The sheet resistance of the
  PSS films doped with DMI is further reduced by various solvent post-treatment. The effect of solvent post-treatment on DMI doped
  PSS films is investigated and is shown to reduce insulating PSS in the conductive films. The solvent posttreated
  PSS films are successfully employed as transparent electrodes in white OLEDs. It is shown that the efficiency of OLEDs with the optimized DMI doped
  PSS films is higher than that of reference OLEDs doped with a conventional solvent (ethylene glycol). The results present that the optimized
  PSS films with the new solvent of DMI can be a promising transparent electrode for low-cost, efficient ITO-free white OLEDs.
authors.affiliation: Department of Display Engineering, Pukyong National University, Busan, 608-737, Republic of Korea.
authors.forename: Jin Hee
authors.initials: JH
authors.lastname: Kim
authors.affiliation: OLED Research Center, Electronics and Telecommunications Research Institute (ETRI), Daejeon, 305-700, Republic of Korea.
authors.forename: Chul Woong
authors.initials: CW
authors.lastname: Joo
authors.affiliation: OLED Research Center, Electronics and Telecommunications Research Institute (ETRI), Daejeon, 305-700, Republic of Korea.
authors.forename: Jonghee
authors.initials: J
authors.lastname: Lee
authors.affiliation: Department of Display Engineering, Pukyong National University, Busan, 608-737, Republic of Korea.
authors.forename: Yoon Kyung
authors.initials: YK
authors.lastname: Seo
authors.affiliation: Department of Display Engineering, Pukyong National University, Busan, 608-737, Republic of Korea.
authors.forename: Joo Won
authors.initials: JW
authors.lastname: Han
authors.affiliation: Department of Display Engineering, Pukyong National University, Busan, 608-737, Republic of Korea.
authors.forename: Ji Yoon
authors.initials: JY
authors.lastname: Oh
authors.affiliation: Department of Display Engineering, Pukyong National University, Busan, 608-737, Republic of Korea.
authors.forename: Jong Su
authors.initials: JS
authors.lastname: Kim
authors.affiliation: Department of Materials Science and Engineering, Yonsei University, Seoul, 120-749, Republic of Korea.
authors.forename: Seunggun
authors.initials: S
authors.lastname: Yu
authors.affiliation: Department of Creative Convergence Engineering, Hanbat National University, Daejeon, 305-719, Republic of Korea.
authors.forename: Jae Hyun
authors.initials: JH
authors.lastname: Lee
authors.affiliation: OLED Research Center, Electronics and Telecommunications Research Institute (ETRI), Daejeon, 305-700, Republic of Korea.
authors.forename: Jeong-Ik
authors.initials: JI
authors.lastname: Lee
authors.affiliation: Center for Nano-Photonics Convergence Technology, Korea Institute of Industrial Technology, Gwangju, 500-480, Republic of Korea.
authors.forename: Changhun
authors.initials: C
authors.lastname: Yun
authors.affiliation: Center for Nano-Photonics Convergence Technology, Korea Institute of Industrial Technology, Gwangju, 500-480, Republic of Korea.
authors.forename: Bum Ho
authors.initials: BH
authors.lastname: Choi
authors.affiliation: Department of Display Engineering, Pukyong National University, Busan, 608-737, Republic of Korea. yhkim113@pknu.ac.kr.
authors.forename: Yong Hyun
authors.initials: YH
authors.lastname: Kim
mesh_terms: D019086:Bridged Bicyclo Compounds, Heterocyclic / Q000737:chemistry*; D004553:Electric Conductivity; D004566:Electrodes; D007093:Imidazoles / Q000737:chemistry*; D008027:Light; D015394:Molecular Structure; D010316:Particle Size; D011108:Polymers / Q000737:chemistry*; D011137:Polystyrenes / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D019086:Bridged Bicyclo Compounds, Heterocyclic; D007093:Imidazoles; D011108:Polymers; D011137:Polystyrenes; C121383:poly(3,4-ethylene dioxythiophene); C583574:1,3-dimethyl-2-imidazolidinone; C003321:polystyrene sulfonic acid
keywords: 1,3-dimethyl-2-imidazolidinone; PEDOT:PSS; conductive polymers; organic light-emitting diodes; transparent electrodes