Ultrafast Excitation Energy Transfer in Small Semiconducting Carbon Nanotube Aggregates
Source abstract
Abstract
We study excitation energy transfer in small aggregates of chirality enriched carbon nanotubes by transient absorption spectroscopy. Ground state photobleaching is used to monitor exciton population dynamics with sub-10 fs time resolution. Upon resonant excitation of the first exciton transition in (6,5) tubes, we find evidence for energy transfer to (7,5) tubes within our time resolution (<10 fs). Excitation in the visible spectral range, where the second excitonic transitions occur, is followed by fast intratube relaxation and subsequent energy transfer, in particular from the (8,4) tube toward other tubes, the latter process occurring in less than 10 fs.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Carbon Nanotubes in Composites · Mechanical and Optical Resonators · Spectroscopy and Quantum Chemical Studies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Madrid Institute of Advanced Studies (IMDEA Nanociencia), Madrid, Spain
CNR/INFM-ULTRAS, Politecnico di Milano, Italy
Institut für Physikalische und Theoretische Chemie, Universität Würzburg, Germany
Center for Integrated Nanotechnologies, Los Alamos National Laboratory, New Mexico, 87545
Dipartimento di Fisica, Politecnico di Milano, Milan, Italy
Center for Nanoscience and Technology of IIT @ POLIMI and Physics Department of Politecnico di Milano, Milan, Italy
References (36)
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