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Photoluminescence responses of graphene quantum dots toward organic bases and an acid

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Abstract

Edge-modified graphene quantum dots (GQD-1) showed base-dependent photoluminescence (PL) responses. DBN, DBU, and Et3N. gradually enhanced the PL. intensity and then caused quenching, whereas quenching was not observed when pyridine and pyrimidine were used. The quenching can be explained by the photoinduced electron transfer from the anchored bases at the periphery to the emissive sites of GQD-1.

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Authors and Affiliations

  1. Department of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima, 739-8526, Japan

    Kaho Suzuki, Kairi Yamato, Ryo Sekiya & Takeharu Haino

Authors
  1. Kaho Suzuki
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  2. Kairi Yamato
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  3. Ryo Sekiya
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  4. Takeharu Haino
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Correspondence to Takeharu Haino.

Additional information

Electronic supplementary information (ESI) available: Supporting figures and tables. See DOI: 10.1039/c7pp00067g

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Suzuki, K., Yamato, K., Sekiya, R. et al. Photoluminescence responses of graphene quantum dots toward organic bases and an acid. Photochem Photobiol Sci 16, 623–626 (2017). https://doi.org/10.1039/c7pp00067g

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  • DOI: https://doi.org/10.1039/c7pp00067g

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