Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 135, Issue 12, Pages 4757-4764Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja312197b
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Funding
- Basic Science Research Program (CRI) [RIAMI-AM0209(0417-20090011)]
- World Class University (WCU) through National Research Foundation of Korea [R31-2008-000-10075-0]
- Ministry of Education, Science and Technology
- Ministerio de Economia y Competitividad [CTQ2011-27317, RyC-2007-01559]
- Comunidad de Madrid [S2009/MAT-1726, S2009/PPQ-1533]
- EC [229599]
- National Research Foundation of Korea [2009-0081571, R31-2012-000-10075-0] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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We have rationally designed a densely packed 1:1 donor-acceptor (D-A) cocrystal system comprising two isometric distyrylbenzene- and dicyanodistyrylbenzene-based molecules, forming regular one-dimensional mixed stacks. The crystal exhibits strongly red-shifted, bright photoluminescence originating from an intermolecular charge-transfer state. The peculiar electronic situation gives rise to high and ambipolar p-/n-type field-effect mobility up to 6.7 x 10(-3) and 6.7 x 10(-2) cm(2) V-1 s(-1), respectively, as observed in single-crystalline OFETs prepared via solvent vapor annealing process. The unique combination of favorable electric and optical properties arising from an appropriate design concept of isometric D-A cocrystal has been demonstrated as a promising candidate for next generation (opto-)electronic materials.
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