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Issue 9, 2015
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Synthesis and optical properties of a new triphenylamine-p-phenylenevinylene-small molecule with applications in high open-circuit voltage organic solar cells

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Abstract

A new oligomer-type para-phenylenevinylene end-capped with triphenylamine groups (TPAPV) was synthesised and its optical properties thoroughly investigated. Fluorescence quenching studies showed that an important fraction of the photogenerated excitons formed in TPAPV is quenched by [6,6]-phenyl-C61-butyric acid methyl ester (PC61BM) in blend films, therefore indicating efficient exciton dissociation and potential applications in organic photovoltaic (PV) cells. Planar heterojunction organic photovoltaic cells containing TPAPV as the electron-donor were fabricated and devices with structure ITO/TPAPV(6 nm)/C60(50 nm)/BCP(10 nm)/Ag exhibited an open-circuit voltage (VOC), short-circuit current (JSC), fill factor (FF), and power-conversion efficiency (PCE) of 0.92 V, 2.9 mA cm−2, 47.8%, and 1.23%, respectively.

Graphical abstract: Synthesis and optical properties of a new triphenylamine-p-phenylenevinylene-small molecule with applications in high open-circuit voltage organic solar cells

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Publication details

The article was received on 16 Jun 2015, accepted on 17 Jul 2015 and first published on 17 Jul 2015


Article type: Paper
DOI: 10.1039/C5NJ01525A
Citation: New J. Chem., 2015,39, 7389-7396
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    Synthesis and optical properties of a new triphenylamine-p-phenylenevinylene-small molecule with applications in high open-circuit voltage organic solar cells

    R. Meira, P. M. M. Costa, R. E. Di Paolo, J. Morgado, L. Alcácer, J. P. Bastos, D. Cheyns and A. Charas, New J. Chem., 2015, 39, 7389
    DOI: 10.1039/C5NJ01525A

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