Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 135, Issue 10, Pages 3744-3747Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja3114278
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Funding
- National Natural Science Foundation of China [61036009, 61177016, 21161160446]
- National 863 Project of China [2011AA03A110]
- Natural Science Foundation of Jiangsu Province [BK2010003]
- National Basic Research Program of China (973 Program) [2009CB623703]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
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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.
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