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Issue 27, 2018
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A facile synthesis of segmented silver nanowires and enhancement of the performance of polymer solar cells

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Abstract

In this work, segmented silver nanowires (AgNWs) with an average diameter of 60 nm have been successfully synthesized by a typical polyol method without any templates and seeds. The synthesized segmented AgNWs were strongly dependent on the reaction temperature and time. It was found from high-resolution transmission electron microscopy and selected area electron diffraction measurements that the connection node of segmented AgNWs was in the form of a twinned crystal. We speculated that these segmented AgNWs were possibly derived from end-to-end self-connection and self-concrescence of two neighbouring Ag nanorods or nanowires at a suitable reaction temperature and time, which is further confirmed by the secondary growth of AgNWs. In addition, segmented AgNWs were blended into hole transporting layers to enhance the performance of polymer solar cells (PSCs) by utilizing their localized surface plasmon resonance and optical scattering effects. As a result, the power conversion efficiency (PCE) and short-circuit current density (Jsc) of PSCs with segmented AgNWs increased from 2.81% and 8.99 mA cm−2 to 3.30% and 9.95 mA cm−2, respectively.

Graphical abstract: A facile synthesis of segmented silver nanowires and enhancement of the performance of polymer solar cells

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Publication details

The article was received on 29 Apr 2018, accepted on 25 Jun 2018 and first published on 25 Jun 2018


Article type: Paper
DOI: 10.1039/C8CP02734J
Citation: Phys. Chem. Chem. Phys., 2018,20, 18837-18843
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    A facile synthesis of segmented silver nanowires and enhancement of the performance of polymer solar cells

    Y. Wei, Q. Zhang, H. Wan, Y. Zhang, S. Zheng and Y. Zhang, Phys. Chem. Chem. Phys., 2018, 20, 18837
    DOI: 10.1039/C8CP02734J

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