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Excitonic Photoluminescence of Ultra-Narrow 7‑Armchair Graphene Nanoribbons Grown by a New “Bottom-Up” Approach on a Ni Substrate under Low Vacuumстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 8 сентября 2021 г.
- Авторы: Fedotov Pavel V., Rybkovskiy Dmitry V., Chernov Alexander I., Obraztsova Ekaterina A., Obraztsova Elena D.
- Журнал: Journal of Physical Chemistry C
- Том: 124
- Номер: 47
- Год издания: 2020
- Издательство: American Chemical Society
- Местоположение издательства: United States
- Первая страница: 25984
- Последняя страница: 25991
- DOI: 10.1021/acs.jpcc.0c07369
- Аннотация: Compared to well-studied single-wall carbon nanotubes, narrow graphene nanoribbons (GNRs) are in shadow due to difficulties in their synthesis (necessity of ultra-high vacuum, noble-metal substrates, and tiny output yield). Here, we report a new approach to the bottom-up technique based on chemical vapor deposition to facilitate the synthesis of 7-armchair GNRs on a large scale under low vacuum on common Ni foil. The structure and high quality of produced GNRs are confirmed by multiwavelength Raman. We demonstrate the characteristic optical absorptionfeatures of produced graphene nanoribbons at 2.05 and 2.22 eV associated with the E11 and E22 excitonic transitions of 7-armchair GNRs. The produced GNRs demonstrate bright photoluminescence (PL) in the red spectral range with the main characteristic feature at 2.04 eV associated with E11 exciton transition. We also measured the PL excitation spectral map that contains a diversity of spectrum features associated with 7-armchair GNRs. The presented results can be beneficial for further study of atomically precise GNRs, especially in nonlinear optics, and can be promising for applications of GNRs.
- Добавил в систему: Образцова Елена Дмитриевна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Fedotov-Supporting_-Info-JPCC-2020.pdf | Fedotov-Supporting_-Info-JPCC-2020.pdf | 610,7 КБ | 5 сентября 2021 [Obraztsova] | |
| 2. | Полный текст | Fedotov-Journ-of-Phys.-Chem.-C-2020-published.pdf | 2,7 МБ | 6 сентября 2021 [Obraztsova] |