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Direct femtosecond laser fabrication of chemically functionalized ultra-black textures on silicon for sensing applicationsстатья
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 апреля 2021 г.
- Авторы: Borodaenko Y., Gurbatov S., Tutov M., Zhizhchenko A., Kulinich S.A., Kuchmizhak A., Mironenko A.
- Журнал: Nanomaterials
- Том: 11
- Год издания: 2021
- Издательство: MDPI
- Местоположение издательства: Basel, Switzerland
- Номер статьи: 401
- DOI: 10.3390/nano11020401
- Аннотация: Here, we present the single-step laser-assisted fabrication of anti-reflective hierarchical surface textures on silicon locally functionalized with a photoluminescent (PL) molecular nanolayer. Using femtosecond-laser ablation of commercial crystalline Si wafers placed under a layer of a solution containing rhodamine 6G (R6G) a triethoxysilyl derivative, we fabricated ordered arrays of microconical protrusions with self-organized nanoscale surface morphology. At the same time, the laser-induced temperature increase facilitated surface activation and local binding of the R6G derivative to the as-fabricated nanotextured surface. The produced dual-scale surface textures showed remarkable broadband (visible to near-IR) light-absorbing properties with an averaged reflectivity of around 1%, and the capping molecular nanolayer demonstrated a strongly enhanced PL yield. By performing a pH sensing test using the produced nanotextured substrate, we confirmed the retention of sensory properties of the molecules attached to the surface and validated the potential applicability of the high-performing liquid-assisted laser processing as a key technology for the development of innovative multifunctional sensing devices in which the textured substrate (e.g.“ultra-black semiconductor) plays a dual role as a support and PL signal amplifier.
- Добавил в систему: Кулинич Сергей Алексеевич
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | full text | 120_NMat_2021.pdf | 6,1 МБ | 5 февраля 2021 [skulinich] |