Cited by 217Luminescence and Fluorescent MaterialsOrganic Light-Emitting Diodes ResearchPhotochemistry and Electron Transfer Studies

Solid State Luminescence Enhancement in π-Conjugated Materials: Unraveling the Mechanism beyond the Framework of AIE/AIEE

Shi, Junqing, Aguilar Suarez, Luis E., Yoon, Seong-Jun, Varghese, Shinto, Serpa, Carlos, Park, Soo Young, Lüer, Larry, Roca-Sanjuán, Daniel +2 more·2017·The Journal of Physical Chemistry C

Abstract

Solid state luminescence enhancement (SLE) of conjugated organic materials has had a great impact in materials science, but a deep understanding has been rather limited to date. Here, we investigate a prototype example of SLE materials, cyano-substituted distyrylbenzene (DCS), by varying systematically and subtly the substitution pattern ( inter alia of the position of the cyano-substituent) to give largely different photoresponse in fluid and solid solution as well in the crystalline state. The combination of quantitative (ultra)fast optical spectroscopic techniques, appropriate quantum-chemical methods, and structural (X-ray) data allows us to elucidate and rationalize all details of the SLE process, including steric versus electronic factors, radiative versus nonradiative decay channels, and intra- versus intermolecular contributions, providing a first holistic picture of SLE.

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Crossref · 10.1021/acs.jpcc.7b08060

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Authors
Shi, J., Aguilar Suarez, L. E., Yoon, S.-J., Varghese, S., Serpa, C., Park, S. Y., Lüer, L., Roca-Sanjuán, D., Milián-Medina, B., & Gierschner, J.
Affiliations
  • Madrid Institute for Advanced Studies (ES)
  • Institute of Molecular Science, University of Valencia, P.O. Box 22085, ES-46071 Valencia, Spain
  • Seoul National University (KR)
  • University of Coimbra (PT)
  • Madrid Institute for Advanced Studies, IMDEA Nanoscience, Calle Faraday 9, Campus Cantoblanco, 28049 Madrid, Spain
Corresponding author
  • Park, Soo Young
  • Gierschner, Johannes
Venue
The Journal of Physical Chemistry C
Published
2017-10-06
Volume
121
Issue
41
Pages
23166-23183
ISSN
  • 1932-7447 (ISSN-L)
  • 1932-7455
OpenAlex
W2758207712
Cited by
217
References
119
Citations by year
2026: 14 · 2025: 21 · 2024: 18 · 2023: 20 · 2022: 25 · 2021: 30 · 2020: 42 · 2019: 26 · 2018: 19 · 2017: 2
FWCI
10.28
Type
journal article
Language
en
Open access
closed
Locations
The Journal of Physical Chemistry C (publishedVersion)
Funders
  • Consejo Superior de Investigaciones Cient?ficas
  • European Regional Development Fund (CTQ2014-58801)
  • Ministerio de Econom?a y Competitividad (CTQ2014-58801, RYC-2015-19234, SEV-2016-0686)
  • National Research Foundation of Korea (2009-0081571)
  • Universidad Aut?noma de Madrid
  • European Cooperation in Science and Technology (MP1302)
  • China Scholarship Council
  • Comunidad de Madrid (S2013/MIT-284, S2013/MIT-3007)
Topics
  • Physical Sciences › Materials Science › Materials Chemistry › Luminescence and Fluorescent Materials
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Organic Light-Emitting Diodes Research
  • Physical Sciences › Chemistry › Physical and Theoretical Chemistry › Photochemistry and Electron Transfer Studies
Keywords
aggregation-induced emission, aggregation-induced emission enhancement, π-conjugated organic materials, steric effects, electronic effects, crystalline state, photoresponse

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