Phosphine oxide-functionalized polyfluorene derivatives: Synthesis, photophysics, electrochemical properties, and electroluminescence performance

Zengshan Guo; Deang Liu; Cheng Wang; Jian Pei; Zhanglin Zhou; Lihua Zhao; Gary Gibson; James Brug; Sity Lam; Samuel S. Mao

doi:10.1007/s11426-011-4249-3

Phosphine oxide-functionalized polyfluorene derivatives: Synthesis, photophysics, electrochemical properties, and electroluminescence performance

Zengshan Guo
, Deang Liu
, Cheng Wang
, Jian Pei
, Zhanglin Zhou
, Lihua Zhao
, Gary Gibson
, James Brug
, Sity Lam
, Samuel S. Mao

Mechanical & Nuclear Engineering

Peking University
University of California, Berkeley
Hewlett-Packard Company

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

A series of phosphine oxide-functionalized polyfluorene derivatives, PFH-PO-40-1 (P1), PFH-PO-20-1 (P2), PFH-PO-10-1 (P3), and PFH-PO-1-1 (P4), were prepared via a palladium-mediated Suzuki cross-coupling reaction. The structures and purities of all polymers were fully characterized by ¹H and ¹³C NMR, UV-vis and photoluminescent spectroscopy, gel permeation chromatography, and TGA/DSC. Their emission features showed single broad peaks at about 445 nm in film, compared with those in dilute solutions, which might be caused by some degree of aggregation in the excited states of the backbones. The best electroluminescence (EL) performance of these polymers with configuration of ITO/PEDOT:PSS/Polymer/Alq₃/LiF/Al was obtained from P1 (current efficiency was 4.2 Cd/A at 6V).

Original language	British English
Pages (from-to)	678-684
Number of pages	7
Journal	Science China Chemistry
Volume	54
Issue number	4
DOIs	https://doi.org/10.1007/s11426-011-4249-3
State	Published - Apr 2011

Keywords

electroluminescence
organic light-emitting diodes
polyfluorene derivatives

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@article{0b8f1265336a4dc3a65fbdf6eae98ae0,

title = "Phosphine oxide-functionalized polyfluorene derivatives: Synthesis, photophysics, electrochemical properties, and electroluminescence performance",

abstract = "A series of phosphine oxide-functionalized polyfluorene derivatives, PFH-PO-40-1 (P1), PFH-PO-20-1 (P2), PFH-PO-10-1 (P3), and PFH-PO-1-1 (P4), were prepared via a palladium-mediated Suzuki cross-coupling reaction. The structures and purities of all polymers were fully characterized by 1H and 13C NMR, UV-vis and photoluminescent spectroscopy, gel permeation chromatography, and TGA/DSC. Their emission features showed single broad peaks at about 445 nm in film, compared with those in dilute solutions, which might be caused by some degree of aggregation in the excited states of the backbones. The best electroluminescence (EL) performance of these polymers with configuration of ITO/PEDOT:PSS/Polymer/Alq3/LiF/Al was obtained from P1 (current efficiency was 4.2 Cd/A at 6V).",

keywords = "electroluminescence, organic light-emitting diodes, polyfluorene derivatives",

author = "Zengshan Guo and Deang Liu and Cheng Wang and Jian Pei and Zhanglin Zhou and Lihua Zhao and Gary Gibson and James Brug and Sity Lam and Mao, \{Samuel S.\}",

note = "Funding Information: This work was supported by the National Basic Research Program of China (2006CB921602 and 2009CB623601) and National Natural Science Foundation of China, and Hewlett Packard Company.",

year = "2011",

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doi = "10.1007/s11426-011-4249-3",

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volume = "54",

pages = "678--684",

journal = "Science China Chemistry",

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T2 - Synthesis, photophysics, electrochemical properties, and electroluminescence performance

AU - Guo, Zengshan

AU - Liu, Deang

AU - Wang, Cheng

AU - Pei, Jian

AU - Zhou, Zhanglin

AU - Zhao, Lihua

AU - Gibson, Gary

AU - Brug, James

AU - Lam, Sity

AU - Mao, Samuel S.

N1 - Funding Information: This work was supported by the National Basic Research Program of China (2006CB921602 and 2009CB623601) and National Natural Science Foundation of China, and Hewlett Packard Company.

PY - 2011/4

Y1 - 2011/4

N2 - A series of phosphine oxide-functionalized polyfluorene derivatives, PFH-PO-40-1 (P1), PFH-PO-20-1 (P2), PFH-PO-10-1 (P3), and PFH-PO-1-1 (P4), were prepared via a palladium-mediated Suzuki cross-coupling reaction. The structures and purities of all polymers were fully characterized by 1H and 13C NMR, UV-vis and photoluminescent spectroscopy, gel permeation chromatography, and TGA/DSC. Their emission features showed single broad peaks at about 445 nm in film, compared with those in dilute solutions, which might be caused by some degree of aggregation in the excited states of the backbones. The best electroluminescence (EL) performance of these polymers with configuration of ITO/PEDOT:PSS/Polymer/Alq3/LiF/Al was obtained from P1 (current efficiency was 4.2 Cd/A at 6V).

AB - A series of phosphine oxide-functionalized polyfluorene derivatives, PFH-PO-40-1 (P1), PFH-PO-20-1 (P2), PFH-PO-10-1 (P3), and PFH-PO-1-1 (P4), were prepared via a palladium-mediated Suzuki cross-coupling reaction. The structures and purities of all polymers were fully characterized by 1H and 13C NMR, UV-vis and photoluminescent spectroscopy, gel permeation chromatography, and TGA/DSC. Their emission features showed single broad peaks at about 445 nm in film, compared with those in dilute solutions, which might be caused by some degree of aggregation in the excited states of the backbones. The best electroluminescence (EL) performance of these polymers with configuration of ITO/PEDOT:PSS/Polymer/Alq3/LiF/Al was obtained from P1 (current efficiency was 4.2 Cd/A at 6V).

KW - electroluminescence

KW - organic light-emitting diodes

KW - polyfluorene derivatives

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DO - 10.1007/s11426-011-4249-3

M3 - Article

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SN - 1674-7291

VL - 54

SP - 678

EP - 684

JO - Science China Chemistry

JF - Science China Chemistry

IS - 4

ER -

Phosphine oxide-functionalized polyfluorene derivatives: Synthesis, photophysics, electrochemical properties, and electroluminescence performance

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