Self-Assembly Polymorphism of Regioisomeric Diketopyrrolopyrrole-Based π-Conjugated Organic Semiconductors
نویسندگان
چکیده
منابع مشابه
Nonequilibrium Self-Assembly of π-Conjugated Oligopeptides in Solution.
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The optical absorption and photoluminescence properties of PPE-type π-conjugated oligomers that contain a 2,2-bipyridine-5,5′-diyl metal coordinating unit have been examined. The spectra of the free oligomers are compared with those that contain –Re(CO)3Cl and –Ru(bpy)2 2+ chromophores chelated to the bpy-diyl unit.
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Solution-processable star-shaped and linear π-conjugated oligomers consisting of an electron-donating tetrathienoanthracene (TTA) core and electron-accepting diketopyrrolopyrrole (DPP) arms, namely, TTA-DPP4 and TTA-DPP2, were designed and synthesized. Based on density functional theory calculations, the star-shaped TTA-DPP4 has a larger oscillator strength than the linear TTA-DPP2, and consequ...
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ژورنال
عنوان ژورنال: The Journal of Physical Chemistry C
سال: 2019
ISSN: 1932-7447,1932-7455
DOI: 10.1021/acs.jpcc.8b08701