A
Arvydas Ruseckas
Researcher at University of St Andrews
Publications - 121
Citations - 5243
Arvydas Ruseckas is an academic researcher from University of St Andrews. The author has contributed to research in topics: Exciton & Photoluminescence. The author has an hindex of 35, co-authored 114 publications receiving 4581 citations. Previous affiliations of Arvydas Ruseckas include Lund University & ASTRON.
Papers
More filters
Journal ArticleDOI
Exciton Diffusion Measurements in Poly(3‐hexylthiophene)
TL;DR: In this article, the problem of making reliable measurements of exciton diffusion length in organic semiconductors is addressed, focusing on the polymer P3HT because of its widespread use in solar cells and showing that their approach is particularly robust.
Journal ArticleDOI
Light Harvesting for Organic Photovoltaics
TL;DR: The fundamental processes in photovoltaic devices are described, with the main emphasis on the characterization of energy transfer and its role in dictating device architecture, including multilayer planar heterojunctions, and on the factors that impact free carrier generation from dissociated excitons.
Journal ArticleDOI
Determining the optimum morphology in high-performance polymer-fullerene organic photovoltaic cells
Gordon J. Hedley,Alexander J. Ward,Alexander Alekseev,Calvyn Travis Howells,Emiliano R. Martins,Luis A. Serrano,Graeme Cooke,Arvydas Ruseckas,Ifor D. W. Samuel +8 more
TL;DR: This work uses nanoscale photocurrent mapping, ultrafast fluorescence and exciton diffusion to observe the detailed morphology of a high-performance blend of PTB7:PC71BM, and shows that optimized blends consist of elongated fullerene-rich and polymer-rich fibre-like domains.
Journal ArticleDOI
Singlet exciton diffusion in MEH-PPV films studied by exciton-exciton annihilation
TL;DR: In this article, the authors reported time-resolved photoluminescence studies in MEH-PPV films for a wide range of excitation intensities, and they fit well to a diffusion-limited exciton-exciton annihilation model with an annihilation constant gamma = (2.8 0.5) x 10(-8) cm(3) s(-1).
Journal ArticleDOI
Ultrafast depolarization of the fluorescence in a conjugated polymer
Arvydas Ruseckas,Phillip Wood,Ifor D. W. Samuel,G.R. Webster,William J. Mitchell,Paul L. Burn,Villy Sundström +6 more
TL;DR: In this paper, the effect of pi electron conjugation on primary photophysics in semiconducting polymers is reported, which indicates a reorientation of the transition dipole moment by similar to 30 degrees on a sub-100 fs time scale.