G. Nelles
Max Planck Society
11 Papers
146 Citations
G. Nelles 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 8, co-authored 11 publications.
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Papers
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.
118
Band-gap engineering of metal oxides for dye-sensitized solar cells.
TL;DR: Temperature-dependent measurements of V(OC) clearly identify the correlation between band edge shift and change in V( OC), and the lattice parameter d is observed to increase linearly with Zr content x.
104
Response to "Comment on 'Two pathways for photon upconversion in model organic compound systems' [J. Appl. Phys. 101, 023101 (2007)]"
Stanislav Baluschev,Vladimir Yakutkin,Gerhard Wegner,Britt Minch,T. Miteva,G. Nelles,A. Yasuda +6 more
TL;DR: In this paper, the authors studied the effect of aggregation on photon upconversion in systems of two model compounds as highly efficient blue emitters sensitized with metallated macrocycle molecules in thin films.
15
Direct measurement of increased light intensity in optical waveguides coupled to a surface plasmon spectroscopy setup
TL;DR: In this article, a dye-sensitized solar cell (DSSC) was used as a waveguide structure and light absorber to measure the local increase of light intensity in waveguide structures.
15