Academic Journal
An inverted singlet-triplet excited state in a pentaazaphenalene derivative (5AP-N(C12) 2 )
| العنوان: | An inverted singlet-triplet excited state in a pentaazaphenalene derivative (5AP-N(C12) 2 ) |
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| المؤلفون: | Kusakabe, Yu, Shizu, Katsuyuki, Tanaka, Hiroyuki, Tanaka, Kazuo, Kaji, Hironori |
| المساهمون: | Japan Society for the Promotion of Science |
| المصدر: | Applied Physics Express ; volume 17, issue 6, page 061001 ; ISSN 1882-0778 1882-0786 |
| بيانات النشر: | IOP Publishing |
| سنة النشر: | 2024 |
| الوصف: | The characteristic of inverted singlet-triplet excited states, in which the lowest singlet excited state (S 1 ) is lower than the lowest triplet state (T 1 ) in energy, was observed in a dialkylamine-substituted pentaazaphenalene derivative, 5AP-N(C12) 2 . The transient photoluminescence measurements showed that the reverse intersystem crossing has virtually zero activation energy, whereas the intersystem crossing is proceeded by a thermal activation process. T 1 was located energetically above S 1 with a negative energy gap between S 1 and T 1 (Δ E ST ) of −37 meV. Fluorescence and phosphorescence spectra also confirmed the negative Δ E ST of −46 to −32 meV. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | unknown |
| DOI: | 10.35848/1882-0786/ad4e96 |
| DOI: | 10.35848/1882-0786/ad4e96/pdf |
| الاتاحة: | http://dx.doi.org/10.35848/1882-0786/ad4e96 https://iopscience.iop.org/article/10.35848/1882-0786/ad4e96 https://iopscience.iop.org/article/10.35848/1882-0786/ad4e96/pdf |
| Rights: | http://creativecommons.org/licenses/by/4.0/ ; https://iopscience.iop.org/info/page/text-and-data-mining |
| رقم الانضمام: | edsbas.28BC8125 |
| قاعدة البيانات: | BASE |
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