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A NIR dye with high-performance n-type semiconducting properties.

ABSTRACT: A novel hetero-polycyclic aromatic compound manifesting strong near-infrared (NIR) absorption as well as high-performance n-type semiconducting properties is developed. With an exceptionally low LUMO level at -4.7 eV, this NIR dye (?max ? 1100 nm, ? ? 105 mol-1 L cm-1) exhibits adequate stability under ambient conditions, with electron mobility up to 0.96 cm2 V-1 s-1 measured in solution-processed organic field-effect transistors. A special metal-free C-C coupling serves as a pivotal step in constructing the polycyclic ?-framework of this low-bandgap chromophore, by fusing an electron-deficient naphthalenediimide moiety with an electron-donating naphthalenediamine. Such a rare combination of extraordinary optical and semiconductive attributes is quite valuable for organic small molecules, and promising for unique applications in the opto-electronic field.

SUBMITTER: Xie J

PROVIDER: S-EPMC5952312 | biostudies-literature | 2016 Jan

REPOSITORIES: biostudies-literature

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A NIR dye with high-performance n-type semiconducting properties.

Xie Jiajun J Shi Ke K Cai Kang K Zhang Di D Wang Jie-Yu JY Pei Jian J Zhao Dahui D

Chemical science 20151006 1

A novel hetero-polycyclic aromatic compound manifesting strong near-infrared (NIR) absorption as well as high-performance n-type semiconducting properties is developed. With an exceptionally low LUMO level at -4.7 eV, this NIR dye (λmax ≈ 1100 nm, ε ≈ 105 mol-1 L cm-1) exhibits adequate stability under ambient conditions, with electron mobility up to 0.96 cm2 V-1 s-1 measured in solution-processed organic ...[more]

PMID: 29861996

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