期刊
POLYMER CHEMISTRY
卷 9, 期 3, 页码 327-334出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7py01980g
关键词
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资金
- National Natural Science Foundation of China [21134005, 21474102, 21474105]
- International Cooperation Foundation of China [2015DFR10700]
- Natural Science and Engineering Research Council of Canada
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 10(13) 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.
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