title: Selective growth of dual-color-emitting heterogeneous microdumbbells composed of organic charge-transfer complexes.
abstract: We report a simple yet versatile solution route for constructing heterojunctions from luminescent organic charge-transfer (CT) complexes through a two-step seeded-growth method. Using this method, we achieved anisotropic and selective growth of anthracene-1,2,4,5-tetracyanobenzene (TCNB) complexes onto the tips of naphthalene-TCNB microtubes, resulting in the formation of microdumbbells. Significantly, the two-component microdumbbells appear as dual-color-emitting heterojunctions arising from integration of two distinct color-emitting materials. We further elucidated the two-step seeded-growth mechanism of the dumbbell-like organic heterostructures on the basis of structural analysis of the two crystals and surface-interface energy balance. In principle, the present synthetic route may be used to fabricate a wide range of sophisticated dual- or multicolor-emitting organic heterostructures via judicious choice of the CT complexes.
authors: Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials, Soochow University, Suzhou, Jiangsu 215123, China.
authors: Yi Long
authors: YL
authors: Lei
authors: Liang Sheng
authors: LS
authors: Liao
authors: Shuit Tong
authors: ST
authors: Lee
mesh_terms: D000873:Anthracenes / Q000737:chemistry*; D001555:Benzene Derivatives / Q000737:chemistry*; D003116:Color; D049449:Luminescence; D009281:Naphthalenes / Q000737:chemistry*; D009570:Nitriles / Q000737:chemistry*; D010316:Particle Size; D013499:Surface Properties
chemical_list: C412109:1,2,4,5-tetracyanobenzene; D000873:Anthracenes; D001555:Benzene Derivatives; D009281:Naphthalenes; D009570:Nitriles; C031721:naphthalene; C034020:anthracene