Conjugated Polyions Enable Organic Photovoltaics Processed from Green Solvents

Gang Ye; Nutifafa Y. Doumon; Sylvia Rousseva; Yuru Liu; Mustapha Abdu-Aguye; Maria A. Loi; Jan C. Hummelen; L. Jan Anton Koster; Ryan C. Chiechi

doi:10.1021/acsaem.8b02226

journal article·2019-03-25Open access

Conjugated Polyions Enable Organic Photovoltaics Processed from Green Solvents

Gang Ye, Nutifafa Y. Doumon, Sylvia Rousseva, Yuru Liu, Mustapha Abdu-Aguye, Maria A. Loi, Jan C. Hummelen, L. Jan Anton Koster, Ryan C. Chiechi

ACS Applied Energy Materials· Volume 2· Issue 3

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Source abstract

Abstract

This paper describes the design, synthesis, and optical and electronic properties of two conjugated polymers CPIZ-B and CPIZ-T that incorporate closed-shell cations into their conjugated backbones, balanced by anionic pendant groups. The zwitterionic nature of the polymers renders them soluble in and processable from polar, protic solvents to form semiconducting films that are not doped. These unique properties are confirmed by absorption and electron paramagnetic resonance spectroscopy. The energies of the unoccupied states respond to the tritylium moieties in the conjugated backbone, while the occupied states respond to the electron-donating ability of the uncharged, aromatic units in the backbone. Films cast from 80:20 HCOOH/H2O by volume show good electron mobilities, enabling a photovoltaic effect in proof-of-concept, bilayer solar cells.

Source: openalex_inverted_index · Quality: baseline

Research context

Polymers Electronic materials

OpenAlex topics: Organic Electronics and Photovoltaics · Conducting polymers and applications · Perovskite Materials and Applications

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

Affiliations

Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands

Zernike Institute for Advanced Materials, Nijenborgh 4, 9747 AG Groningen, The Netherlands

Funding

Stichting voor Fundamenteel Onderzoek der Materie · China Scholarship Council · Ministerie van Onderwijs, Cultuur en Wetenschap

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