دورية أكاديمية
Effect of nanoscale dielectric environments on concentration quenching
| العنوان: | Effect of nanoscale dielectric environments on concentration quenching |
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| المؤلفون: | Rout Sangeeta, Koutsares Samantha R., Courtwright Devon, Mills Ezekiel, Shorter Ayanna, Prayakarao Srujana, Bonner Carl E., Noginov Mikhail A. |
| المصدر: | Nanophotonics, Vol 10, Iss 14, Pp 3659-3665 (2021) |
| بيانات النشر: | De Gruyter, 2021. |
| سنة النشر: | 2021 |
| المجموعة: | LCC:Physics |
| مصطلحات موضوعية: | concentration quenching, diffusion length, emission kinetics, förster radius, Physics, QC1-999 |
| الوصف: | We have studied the dependence of concentration quenching of luminescence (donor–acceptor energy transfer) on the thickness d of dye-doped polymeric films (HITC:PMMA) and found its strong inhibition at small values of d. This phenomenon is tentatively explained by a limited number of acceptors, which donors’ excitation can reach in thin samples, if the film’s thickness is comparable to the diffusion length of the energy transfer. The latter mechanism, along with effective reduction of the dye concentration, is responsible for an inhibition of the concentration quenching of dye molecules impregnating porous alumina membranes. The elongation of emission kinetics in thick (≥3 μm) HITC:PMMA films is cautiously attributed to the samples’ crystallinity. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2192-8614 2021-0132 |
| Relation: | https://doaj.org/toc/2192-8614 |
| DOI: | 10.1515/nanoph-2021-0132 |
| URL الوصول: | https://doaj.org/article/c324c6f7aca34053ad6dab0044576c31 |
| رقم الأكسشن: | edsdoj.324c6f7aca34053ad6dab0044576c31 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 21928614 20210132 |
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| DOI: | 10.1515/nanoph-2021-0132 |