title: Tailor-made highly luminescent and ambipolar transporting organic mixed stacked charge-transfer crystals: an isometric donor-acceptor approach.
abstract: 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 × 10(-3) and 6.7 × 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.
authors: Center for Suprameolcular Optoelectronic Materials and WCU Hybrid Materials Program, Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-744, Korea.
authors: Sang Kyu
authors: SK
authors: Park
authors: Shinto
authors: S
authors: Varghese
authors: Jong H
authors: JH
authors: Kim
authors: Seong-Jun
authors: SJ
authors: Yoon
authors: Oh Kyu
authors: OK
authors: Kwon
authors: Byeong-Kwan
authors: BK
authors: An
authors: Johannes
authors: J
authors: Gierschner
authors: Soo Young
authors: SY
authors: Park