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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/2237/271076beeaebd-54c5-4ac9-bbdc-2c8644d88e99
名前 / ファイル | ライセンス | アクション |
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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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× Yonekawa, Fumihiro× Albrecht, Ken× Yamamoto, Kimihisa× Takenobu, Taishi |
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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 |
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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 |