DataVXACS Applied Materials & InterfacesPaper
journal article·2020-12-02Open access

Conductive Thin Films over Large Areas by Supramolecular Self-Assembly

Pei-Yang Gu, Yufeng Jiang, Zachary Fink, Ganhua Xie, Qin Hu, Paul Y. Kim, Qing-Feng Xu, Jian-Mei Lu, Thomas P. Russell

ACS Applied Materials & Interfaces· Volume 12· Issue 48
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Source abstract

Abstract

We report a “one-step” method for preparing conductive thin films with cylindrical microdomains oriented normal to the surface over large areas using the supramolecular assembly of poly(styrene-block-4-vinylpyridine) (PS19-b-P4VP5) and 5,10,15,20-tetrakis(4-hydroxyphenyl)-21H,23H-porphine (HOTPP). HOTPP interacts with the P4VP block by hydrogen bonding between the hydroxyl group of HOTPP and pyridine ring of PS19-b-P4VP5, forming cylindrical P4VP(HOTPP) domains having an average diameter of ∼17 nm in a PS matrix. Dynamic light scattering, contact angle, and in situ grazing incidence small-angle X-ray scattering measurements show a morphological transition from spherical micelles in solution to cylindrical microdomains oriented normal to the substrate surface during the drying process. From the dependence of current on voltage, an average current of ∼4.0 nA is found to pass through a single microdomain, pointing to a promising route for organic semiconductor device applications.
Source: openalex_inverted_index · Quality: baseline

Research context

Electronic materials

OpenAlex topics: Block Copolymer Self-Assembly · Advanced Polymer Synthesis and Characterization · Surface Chemistry and Catalysis

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation, Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, P. R. China

Materials Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States

Applied Science and Technology, University of California, Berkeley, 210 Hearst Memorial Mining Building, Berkeley, California 94720, United States

Polymer Science and Engineering Department, University of Massachusetts, Amherst, Massachusetts 01003, United States

Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China

Funding

Basic Energy Sciences · National Natural Science Foundation of China

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