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Dresden 2017 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 68: Focus Session: Semiconductor Materials and Nanostructure for Photocatalysis

HL 68.4: Invited Talk

Thursday, March 23, 2017, 10:30–11:00, POT 51

Quantum confined colloidal semiconductor nanocrystals for solar fuels — •Frank Jäckel — Stephenson Institute for Renewable Energy and Department of Physics, University of Liverpool, UK

Co-catalyst decorated colloidal semiconductor nanocrystals are currently receiving increasing interest as a potentially cheap and scalable means for the photocatalytic generation of solar fuels such as solar hydrogen. [1,2] At the same time, colloidal semiconductor nanocrystals offer size-tuneable optical and electronic properties which allow the realisation of material properties beyond the bulk. In this talk, I will address how quantum confinement can be used to optimise quantum efficiencies and the use of the solar spectrum for photocatalytic hydrogen generation.[3] I will also present new approaches towards solving the stability-efficiency-dilemma frequently encountered in these systems. [4]

[1] M. Berr, A. Vaneski, A. S. Susha, J. Rodriguez-Fernandez, M. Döblinger, F. Jäckel, A. L. Rogach, and J. Feldmann, Appl. Phys. Lett. 97 093108 (2010).

[2] T. Simon, N. Bouchonville, M. J. Berr, A. Vaneski, A. Adrovic, D. Volbers, R. Wyrwich, M. Döblinger, A. S. Susha, A. L. Rogach, F. Jäckel, J. K. Stolarczyk, J. Feldmann, Nature Materials 13 1013 (2014).

[3] W. Li, G. O*Dowd, T. J. Whittles, D. Hesp, Y. Gründer, V. R. Dhanak, F. Jäckel Nanoscale 7 16606 (2015).

[4] W. Li, J. Lee, F. Jäckel ACS Appl. Mater. & Interf. 8 29434 (2016).

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