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Issue 3, 2018
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Side-chain engineering in naphthalenediimide-based n-type polymers for high-performance all-polymer photodetectors

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Abstract

A series of n-type semiconducting conjugated polymers based on naphthalene diimide (NDI) having three different side chains, 5-decylpentadecyl, 2-octyldodecyl and 4-(2-octyldodecyloxy)phenyl, were synthesized. Experimental results showed that the subtle structural changes at the side chains can influence the molecular packing, electron mobility, blend film morphology and thus performance of bulk-heterojunction polymer photodetectors using these NDI-based polymers as acceptors. The optimized all-polymer photodetector exhibited a specific detectivity (D*) of over 1013 Jones in the spectral region of 300–800 nm under −0.1 V bias, which is among the best D* values of the reported UV–vis–NIR all-polymer photodetectors and comparable to the best fullerene-based photodetectors.

Graphical abstract: Side-chain engineering in naphthalenediimide-based n-type polymers for high-performance all-polymer photodetectors

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Publication details

The article was received on 24 Nov 2017, accepted on 06 Dec 2017 and first published on 08 Dec 2017


Article type: Paper
DOI: 10.1039/C7PY01980G
Citation: Polym. Chem., 2018,9, 327-334
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    Side-chain engineering in naphthalenediimide-based n-type polymers for high-performance all-polymer photodetectors

    L. Hu, J. Han, W. Qiao, X. Zhou, C. Wang, D. Ma, Y. Li and Z. Y. Wang, Polym. Chem., 2018, 9, 327
    DOI: 10.1039/C7PY01980G

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