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Time resolved resonant photoemission study of energy level alignment at donor/acceptor interfaces
- 1.0517400 - FZÚ 2020 RIV NL eng J - Journal Article
Costantini, R. - Pincelli, T. - Cossaro, A. - Verdini, A. - Goldoni, A. - Cichoň, Stanislav - Caputo, M. - Pedio, M. - Panaccione, G. - Silly, M.G. - Sirotti, F. - Morgante, A. - Dell’Angela, M.
Time resolved resonant photoemission study of energy level alignment at donor/acceptor interfaces.
Chemical Physics Letters. Roč. 683, Sep (2017), s. 135-139. ISSN 0009-2614. E-ISSN 1873-4448
R&D Projects: GA MŠMT(CZ) LO1409
Institutional support: RVO:68378271
Keywords : photoemission * time resolved * synchrotron * fulerene * photovoltaic * pump and probe
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 1.686, year: 2017
Method of publishing: Limited access
https://doi.org/10.1016/j.cplett.2017.04.033
The knowledge of the picosecond dynamics of the energy level alignment between donor and acceptor materials in organic photovoltaic devices under working conditions is a challenge for fundamental material research. We measured by means of time-resolved Resonant X-ray Photoemission Spectroscopy (RPES) the energy level alignment in ZnPc/C60 films. We employed 800 nm femtosecond laser pulses to pump the system simulating sunlight excitation and X-rays from the synchrotron as a probe. We measured changes in the valence bands due to pump induced modifications of the interface dipole. Our measurements prove the feasibility of time-resolved RPES with high repetition rate sources.
Permanent Link: http://hdl.handle.net/11104/0302716
Number of the records: 1