کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5403572 1505929 2008 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thermal effects in exciton harvesting in biased one-dimensional systems
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Thermal effects in exciton harvesting in biased one-dimensional systems
چکیده انگلیسی
The study of energy harvesting in chain-like structures is important due to its relevance to a variety of interesting physical systems. Harvesting is understood as the combination of exciton transport through intra-band exciton relaxation (via scattering on phonon modes) and subsequent quenching by a trap. Recently, we have shown that in the low temperature limit different harvesting scenarios as a function of the applied bias strength (magnitude of the energy gradient towards the trap) are possible [S.M. Vlaming, V.A. Malyshev, J. Knoester, J. Chem. Phys. 127 (2007) 154719]. This paper generalizes the results for both homogeneous and disordered chains to nonzero temperatures. We show that thermal effects are appreciable only for low bias strengths, particularly so in disordered systems, and lead to faster harvesting.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 128, Issues 5–6, May–June 2008, Pages 956-959
نویسندگان
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