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  1. B200 工学部/工学研究科
  2. B200a 雑誌掲載論文
  3. 学術雑誌

An ionic liquid that dissolves semiconducting polymers: a Promising Electrolyte for Bright, Efficient, and Stable Light-Emitting Electrochemical Cells

http://hdl.handle.net/2237/27107
http://hdl.handle.net/2237/27107
6beeaebd-54c5-4ac9-bbdc-2c8644d88e99
名前 / ファイル ライセンス アクション
manuscript_revised.pdf manuscript_revised.pdf ファイル公開日:2017/07/25 (4.7 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2017-11-19
タイトル
タイトル An ionic liquid that dissolves semiconducting polymers: a Promising Electrolyte for Bright, Efficient, and Stable Light-Emitting Electrochemical Cells
言語 en
著者 Sakanoue, Tomo

× Sakanoue, Tomo

WEKO 74037

en Sakanoue, Tomo

Search repository
Yonekawa, Fumihiro

× Yonekawa, Fumihiro

WEKO 74038

en Yonekawa, Fumihiro

Search repository
Albrecht, Ken

× Albrecht, Ken

WEKO 74039

en Albrecht, Ken

Search repository
Yamamoto, Kimihisa

× Yamamoto, Kimihisa

WEKO 74040

en Yamamoto, Kimihisa

Search repository
Takenobu, Taishi

× Takenobu, Taishi

WEKO 74041

en Takenobu, Taishi

Search repository
アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
権利
言語 en
権利情報 “This document is the Accepted Manuscript version of a Published Work that appeared in final form in [Chemistry of Materials], copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see[http://pubs.acs.org/articlesonrequest/AOR-YSXj7a26XAutfmbnqFKZ].”
抄録
内容記述 Light-emitting electrochemical cells (LECs) are composed of blends of semiconducting polymers and electrolytes, in which a unique cooperative action of ions and electrons induces a dynamic p–n junction for efficient emission. One of the crucial issues remaining in LECs is uniformity in blends of polymer and electrolyte; phase separation in between the two components results in poor performance or failure of operation. Here, we overcome this issue by developing an ionic liquid-based electrolyte of alkylphosphonium-phosphate that shows notable compatibility high enough to dissolve even light-emitting polymers. This exceptional compatibility enabled us to prepare uniform film blends with various blue to red emitting polymers, and offered bright and efficient LECs. Especially, a blue-emitting LEC showed excellent performance: the luminance reached ∼20 000 cd m^–2 with a high luminance efficiency of ∼5 cd A^–1, of which performances significantly exceed a light-emitting diode using the same polymer. The ionic liquid was further applied to the LECs with state-of-the-art light-emitting dendrimers showing thermally activated delayed fluorescence under electrical excitation, giving a high efficiency of 11 cd A^–1. These demonstrations remind us of the great importance of the polymer–electrolyte compatibility and the usefulness of ILs for electrolyte of LECs.
言語 en
内容記述タイプ Abstract
出版者
言語 en
出版者 ACS Publications
言語
言語 eng
資源タイプ
資源タイプresource http://purl.org/coar/resource_type/c_6501
タイプ journal article
出版タイプ
出版タイプ AM
出版タイプResource http://purl.org/coar/version/c_ab4af688f83e57aa
DOI
関連タイプ isVersionOf
識別子タイプ DOI
関連識別子 https://doi.org/10.1021/acs.chemmater.7b02128
ISSN
収録物識別子タイプ PISSN
収録物識別子 0897-4756
書誌情報 en : Chemistry of Materials

巻 29, 号 14, p. 6122-6129, 発行日 2017-07-25
著者版フラグ
値 author
URI
識別子 http://doi.org/10.1021/acs.chemmater.7b02128
識別子タイプ DOI
URI
識別子 http://hdl.handle.net/2237/27107
識別子タイプ HDL
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