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Mechanistic Insights into the Fluorescence Quenching of Rhodamine 6G by Graphene Oxide
张群
Author NameAffiliationE-mail
张群 中国科学技术大学化学物理系 qunzh@ustc.edu.cn 
Abstract:
The fluorescence quenching of Rhodamine 6G (R6G) by graphene oxide (GO) was interrogated by R6G fluorescence measurements using a set of controlled GO samples with varied C/O ratios as the quencher. The carbonyl groups on the GO nanosheet turned to play a dominant role in quenching the R6G fluorescence. The quenching in the static regime can be described by the “sphere of action” model. The significant absorption of the R6G fluorescence by the ground-state complex formed between R6G and GO was identified to be responsible for the static quenching. This work offers helpful insights into the fluorescence quenching mechanisms in the R6G/GO system.
Key words:  Graphene oxide (GO), Rhodamine 6G (R6G), Fluorescence, Carbonyl group, Static quenching, Sphere of action, Ground-state complex
FundProject:
Mechanistic Insights into the Fluorescence Quenching of Rhodamine 6G by Graphene Oxide
张群
摘要:
The fluorescence quenching of Rhodamine 6G (R6G) by graphene oxide (GO) was interrogated by R6G fluorescence measurements using a set of controlled GO samples with varied C/O ratios as the quencher. The carbonyl groups on the GO nanosheet turned to play a dominant role in quenching the R6G fluorescence. The quenching in the static regime can be described by the “sphere of action” model. The significant absorption of the R6G fluorescence by the ground-state complex formed between R6G and GO was identified to be responsible for the static quenching. This work offers helpful insights into the fluorescence quenching mechanisms in the R6G/GO system.
关键词:  Graphene oxide (GO), Rhodamine 6G (R6G), Fluorescence, Carbonyl group, Static quenching, Sphere of action, Ground-state complex
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