| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2026-02-03 |
| 日付 |
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日付 |
2026-05-27 |
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日付タイプ |
Available |
| タイトル |
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タイトル |
Preparation and Characterization of 5,5′-Bis(4′-Cyanobiphenyl-4-Yl)-2,2′-Bithiophene Nanocrystals Using an Ionic Liquid |
| 言語 |
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言語 |
eng |
| キーワード |
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主題Scheme |
Other |
|
主題 |
improved reprecipitation methods |
| キーワード |
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主題Scheme |
Other |
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主題 |
ionic liquid |
| キーワード |
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主題Scheme |
Other |
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主題 |
nanostructures |
| キーワード |
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主題Scheme |
Other |
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主題 |
size-dependent optical properties |
| キーワード |
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主題Scheme |
Other |
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主題 |
thiophene/phenylene co-oligomer |
| 資源タイプ |
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資源タイプ |
journal article |
| アクセス権 |
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アクセス権 |
embargoed access |
| 著者 |
Marwanti, Panre Andi
水野, 斎
Jinjyo, Tomomi
香月, 浩之
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
A novel preparation method using an ionic liquid (IL) (1-hexadecyl-3-methylimidazolium chloride) is developed to control size and prevent agglomeration during the fabrication of nanocrystals (NCs) of 5,5′-bis(4′-cyanobiphenyl-4-yl)-2,2′-bithiophene (BP2T-CN), a type of thiophene/phenylene co-oligomers (TPCOs). BP2T-CN NCs with sizes ranging from 86 to 550 nm are prepared by changing the concentration of the IL in an improved reprecipitation technique. Photoluminescence (PL) and absorption measurements reveal blue-shifts in PL and absorption bands with decreasing NC size, attributing to the site-shift effect. The energies of PL and absorption bands vary between the energies of bulk crystal and monomer state. PL spectra of BP2T-CN NCs (550, 260, and 86 nm) measured under atmospheric and vacuum conditions show small peak energy changes (9.61–12.8 meV) due to surface effects. Under vacuum conditions, NCs of 550 nm (without IL) exhibits 1.6–2.5 times longer PL decay times, while NCs of 260 nm (with 11 mM IL) and 86 nm (with 27 mM IL) show 0.8–1.1 times longer constants. These smaller changes in decay times under vacuum, caused by IL surface passivation, highlight that the method effectively suppresses NC aggregation and reduces surface effects. |
| 書誌情報 |
en : ChemNanoMat
巻 11,
号 8,
ページ数 13,
発行日 2025-05-27
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| 出版者 |
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出版者 |
Wiley |
| ISSN |
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収録物識別子タイプ |
EISSN |
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収録物識別子 |
2199-692X |
| 出版者版DOI |
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関連タイプ |
isVersionOf |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1002/cnma.202500174 |
| 出版者版URI |
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関連タイプ |
isVersionOf |
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識別子タイプ |
URI |
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関連識別子 |
https://aces.onlinelibrary.wiley.com/doi/full/10.1002/cnma.202500174 |
| 権利 |
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権利情報 |
© 2025 Wiley-VCH GmbH. This is the peer reviewed version of the following article: Marwanti Panre Andi, Mizuno Hitoshi, Jinjyo Tomomi, Katsuki Hiroyuki. 2025. Preparation and Characterization of 5,5′-Bis(4′-Cyanobiphenyl-4-Yl)-2,2′-Bithiophene Nanocrystals Using an Ionic Liquid. ChemNanoMat. 11,8,e202500174 , which has been published in final form at https://doi.org/10.1002/cnma.202500174 . This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited. 出版社許諾条件により、本文は2026年5月27日以降に公開。 |
| 著者版フラグ |
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出版タイプ |
AM |
| 助成情報 |
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助成機関名 |
Japan Society for the Promotion of Science (JSPS) |
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研究課題番号 |
24K00927 |
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研究課題番号URI |
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-24K00927/ |
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研究課題名 |
量子解放の分子機能が関与するTPCO結晶における発光増幅現象の全容解明 |
fulltext (1.5 MB)
