DataVXThe Journal of Physical Chemistry CPaper
journal article·2019-08-15Open access

Self-Assembly for Two Types of J-Aggregates: cis-Isomers of Dye on the Carbon Nanotube Surface and Free Aggregates of Dye trans-Isomers

Petro Lutsyk, Yuri Piryatinski, Mykola Shandura, Mohammed AlAraimi, Maria Tesa, Georgios E. Arnaoutakis, Ambrose Ashwin Melvin, Oleksiy Kachkovsky, Anatoly Verbitsky, Aleksey Rozhin

The Journal of Physical Chemistry C· Volume 123· Issue 32
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Source abstract

Abstract

Development of novel nanoscale devices requires unique functional nanomaterials. Furthermore, chemical design of different nanoparticles in one unit is a complex task, particularly the application of self-assembly J-aggregates, which can substantially advance the nanomaterial’s properties due to resonant delocalization of excitons. Here, we have demonstrated for the first time formation of resonantly coherent J-aggregates on carbon nanotubes with highly efficient energy transfer from the aggregates to the nanotubes. All the energy of photons absorbed by the aggregates is conveyed to the nanotubes, completely quenching the J-band emission and photosensitizing the nanotubes. Overall, we discovered formation of two types of J-aggregates, where one type is related to self-assembly of cis -isomers on the nanotube surface and the second type is associated to self-organizing trans -isomers into free J-aggregates without the nanotubes. Importantly, the J-aggregates on carbon nanotubes with strong energy transfer peaks of photoluminescence in the near infrared range are of high interest for practical applications on biomedical imaging and nanoscale optoelectronic and nanophotonic devices.
Source: openalex_inverted_index · Quality: baseline

Research context

NanomaterialsElectronic materials

OpenAlex topics: Supramolecular Self-Assembly in Materials · Luminescence and Fluorescent Materials · Polydiacetylene-based materials and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Nanoscience Research Group & Aston Institute of Photonic Technologies, School of Engineering & Applied Science, Aston University, Aston Triangle, B4 7ET Birmingham, U.K.

Institute of Physics, National Academy of Sciences of Ukraine, 46, prospekt Nauky, 03680 Kyiv, Ukraine

Institute of Organic Chemistry, National Academy of Sciences of Ukraine, 5, Murmanska Street, 02660 Kyiv, Ukraine

Edinburgh Instruments Ltd., 2 Bain Square, Kirkton Campus, Livingston EH54 7DQ, U.K.

Department of Solar Energy and Environmental Physics, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Midreshet Ben-Gurion 84990, Israel

Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Sciences of Ukraine, 1, Murmanska Street, 02660 Kyiv, Ukraine

Funding

Royal Academy of Engineering · Leverhulme Trust · Jacob Blaustein Center for Scientific Cooperation · Horizon 2020 Framework Programme

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