Self-assembly of a conjugated triblock copolymer at the air-water interface

Lei Zhao, Chaowei Feng, Xinchang Pang, Jaehan Jung, Mihaela C. Stefan, Prakash Sista, Rui Han, Ning Fang, Zhiqun Lin

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


Controlling the self-assembly of highly luminescent conjugated polymers is essential for preparing various optoelectronic devices. In this study, a polyisoprene-b-polystyrene-b-poly(3-hexylthiophene) (PI-PS-P3HT) triblock copolymer was synthesized and readily self-assembled into network-like morphologies via dewetting at the air-water interface. Interestingly, the monolayer thick film displayed high photoluminescence (PL) as a result of successfully transferring the amorphous conjugated P3HT chains in the PI-PS-P3HT triblock copolymer from the solution state to the solid state. A model was proposed to illustrate the supramolecular organization of the PI-PS-P3HT monolayer. To the best of our knowledge, this is the first study of a hydrophobic conjugated block copolymer at the air-water interface, from which the conjugated polymer-based monolayer with highly efficient PL formed by dewetting was achieved.

Original languageEnglish
Pages (from-to)8050-8056
Number of pages7
JournalSoft Matter
Issue number33
StatePublished - 2013


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