A. Yasuda
Max Planck Society
20 Papers
386 Citations
A. Yasuda is an academic researcher from Max Planck Society. The author has contributed to research in topics: Photon upconversion & Dye-sensitized solar cell. The author has an hindex of 15, co-authored 20 publications.
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Papers
Self-Assembled Gold Nanoparticle/Alkanedithiol Films: Preparation, Electron Microscopy, XPS-Analysis, Charge Transport and Vapor-Sensing Properties
Yvonne Joseph,Isabelle Besnard,Miriam Rosenberger,Berit Guse,Heinz-Georg Nothofer,Jurina M. Wessels,Ute Wild,Axel Knop-Gericke,Dang Sheng Su,Robert Schlögl,A. Yasuda,Tobias Vossmeyer +11 more
TL;DR: In this paper, a gold nanoparticle/alkanedithiol films were prepared via layer-by-layer self-assembly using dodecylamine-stabilized Au nanoparticles with an average size of 4 nm and alkylene chain lengths (C6, C9, C12, C16).
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Tandem dye-sensitized solar cell for improved power conversion efficiencies
TL;DR: In this paper, a tandem structure with two different sensitizer dyes in two different compartments of the cell, respectively, was realized, achieving power conversion efficiencies as high as η=10.5% and short circuit current densities of JSC=21.1
205
Upconversion with ultrabroad excitation band: Simultaneous use of two sensitizers
Stanislav Baluschev,Vladimir Yakutkin,Gerhard Wegner,T. Miteva,G. Nelles,A. Yasuda,Sergei Chernov,Sergei Aleshchenkov,Andrei V. Cheprakov +8 more
TL;DR: In this article, the authors demonstrate the ability to combine sensitizers effectively working with single emitter in order to increase the excitation window for non-coherent upconversion.
146
Two pathways for photon upconversion in model organic compound systems
Stanislav Baluschev,Vladimir Yakutkin,Gerhard Wegner,Britt Minch,T. Miteva,G. Nelles,A. Yasuda +6 more
TL;DR: In this article, the authors studied the photon upconversion in two model compounds as highly efficient blue emitters sensitized with metallated macrocycle molecules in thin films and found that the upconverting process is based on the presence of a metastable triplet excited state of the macrocycles giving rise to dramatically different photophysical characteristics relative to the other known methods for photon up-conversion such as two-photon absorption, parametric processes, second harmonic generation, and sequential multiphoton absorption.
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