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

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

Edge-modified graphene quantum dots (GQD-1) showed base-dependent photoluminescence (PL) responses. DBN, DBU, and Et 3 N. 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 p...

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Veröffentlicht in:Photochemical & photobiological sciences 2017-05, Vol.16 (5), p.623-626
Hauptverfasser: Suzuki, Kaho, Yamato, Kairi, Sekiya, Ryo, Haino, Takeharu
Format: Artikel
Sprache:eng
Schlagworte:
Biochemistry
Biomaterials
Chemistry
Communication
Physical Chemistry
Plant Sciences
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Zusammenfassung:Edge-modified graphene quantum dots (GQD-1) showed base-dependent photoluminescence (PL) responses. DBN, DBU, and Et 3 N. 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.
ISSN:1474-905X
1474-9092
DOI:10.1039/c7pp00067g