Academic Journal
An emissive charge-transfer excited-state at the well-defined hetero-nanostructure interface of an organic conjugated molecule and two-dimensional inorganic nanosheet
| العنوان: | An emissive charge-transfer excited-state at the well-defined hetero-nanostructure interface of an organic conjugated molecule and two-dimensional inorganic nanosheet |
|---|---|
| المؤلفون: | Umeyama, Tomokazu, Mizutani, Daizu, Ikeda, Yuki, Osterloh, W. Ryan, Yamamoto, Futa, Kato, Kosaku, Yamakata, Akira, Higashi, Masahiro, Urakami, Takumi, Sato, Hirofumi, Imahori, Hiroshi |
| المساهمون: | 水谷, 太寿, 池田, 有輝, 東, 雅大, 浦上, 拓臣, 佐藤, 啓文, 今堀, 博 |
| بيانات النشر: | Royal Society of Chemistry (RSC) |
| سنة النشر: | 2023 |
| المجموعة: | Kyoto University Research Information Repository (KURENAI) / 京都大学学術情報リポジトリ |
| الوصف: | Precise engineering of excited-state interactions between an organic conjugated molecule and a two-dimensional semiconducting inorganic nanosheet, specifically the manipulation of charge-transfer excited (CTE) states, still remains a challenge for state-of-the-art photochemistry. Herein, we report a long-lived, highly emissive CTE state at structurally well-defined hetero-nanostructure interfaces of photoactive pyrene and two-dimensional MoS₂ nanosheets via an N-benzylsuccinimide bridge (Py-Bn-MoS₂). Spectroscopic measurements reveal that no charge-transfer state is formed in the ground state, but the locally-excited (LE) state of pyrene in Py-Bn-MoS₂ efficiently generates an unusual emissive CTE state. Theoretical studies elucidate the interaction of MoS₂ vacant orbitals with the pyrene LE state to form a CTE state that shows a distinct solvent dependence of the emission energy. This is the first example of organic–inorganic 2D hetero-nanostructures displaying mixed luminescence properties by an accurate design of the bridge structure, and therefore represents an important step in their applications for energy conversion and optoelectronic devices and sensors. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 2041-6520 2041-6539 |
| Relation: | http://hdl.handle.net/2433/286237; Chemical Science; 14; 42; 11914; 11923 |
| الاتاحة: | http://hdl.handle.net/2433/286237 |
| Rights: | © 2023 The Author(s). Published by the Royal Society of Chemistry ; This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. ; http://creativecommons.org/licenses/by-nc/3.0/ |
| رقم الانضمام: | edsbas.25DE29A6 |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 20416520 20416539 |
|---|