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Wide bandgap OPV polymers based on pyridinonedithiophene unit with efficiency >5.

ABSTRACT: We report the properties of a new series of wide band gap photovoltaic polymers based on the N-alkyl 2-pyridone dithiophene (PDT) unit. These polymers are effective bulk heterojunction solar cell materials when blended with phenyl-C71-butyric acid methyl ester (PC71BM). They achieve power conversion efficiencies (up to 5.33%) high for polymers having such large bandgaps, ca. 2.0 eV (optical) and 2.5 eV (electrochemical). Grazing incidence wide-angle X-ray scattering (GIWAXS) reveals strong correlations between ?-? stacking distance and regularity, polymer backbone planarity, optical absorption maximum energy, and photovoltaic efficiency.

SUBMITTER: Schneider AM

PROVIDER: S-EPMC5664788 | biostudies-literature | 2015 Aug

REPOSITORIES: biostudies-literature

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Wide bandgap OPV polymers based on pyridinonedithiophene unit with efficiency >5.

Schneider Alexander M AM Lu Luyao L Manley Eric F EF Zheng Tianyue T Sharapov Valerii V Xu Tao T Marks Tobin J TJ Chen Lin X LX Yu Luping L

Chemical science 20150604 8

We report the properties of a new series of wide band gap photovoltaic polymers based on the N-alkyl 2-pyridone dithiophene (PDT) unit. These polymers are effective bulk heterojunction solar cell materials when blended with phenyl-C71-butyric acid methyl ester (PC71BM). They achieve power conversion efficiencies (up to 5.33%) high for polymers having such large bandgaps, ca. 2.0 eV (optical) and 2.5 eV (electrochemical). Grazing incidence wide-angle X-r ...[more]

PMID: 29142719

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