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Pump‐Probe Spectroscopy in Organic Semiconductors: Monitoring Fundamental Processes of Relevance in Optoelectronics
Author(s) -
CabanillasGonzalez Juan,
Grancini Giulia,
Lanzani Guglielmo
Publication year - 2011
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201102015
Subject(s) - materials science , spectroscopy , optoelectronics , organic semiconductor , nanotechnology , semiconductor , excited state , atomic physics , physics , quantum mechanics
In this review we highlight the contribution of pump‐probe spectroscopy to understand elementary processes taking place in organic based optoelectronic devices. The techniques described in this article span from conventional pump‐probe spectroscopy to electromodulated pump‐probe and the state‐of‐the‐art confocal pump‐probe microscopy. The article is structured according to three fundamental processes (optical gain, charge photogeneration and charge transport) and the contribution of these techniques on them. The combination of these tools opens up new perspectives for assessing the role of short‐lived excited states on processes lying underneath organic device operation.