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복잡계 자기조립 연구단
복잡계 자기조립 연구단
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A General Descriptor ΔE Enables the Quantitative Development of Luminescent Materials Based on Photoinduced Electron Transfer

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Title
A General Descriptor ΔE Enables the Quantitative Development of Luminescent Materials Based on Photoinduced Electron Transfer
Author(s)
Weijie Chi; Jie Chen; Wenjuan Liu; Chao Wang; Qingkai Qi; Qinglong Qiao; Tee Meng Tan; Kangming Xiong; Xiao Liu; Keegan Kang; Young-Tae Chang; Zhaochao Xu; Xiaogang Liu
Publication Date
2020-04
Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.142, no.14, pp.6777 - 6785
Publisher
AMER CHEMICAL SOC
Abstract
Photoinduced electron transfer (PET) is one of the most important mechanisms for developing fluorescent probes and biosensors. Quantitative prediction of the quantum yields of these probes and sensors is crucial to accelerate the rational development of novel PET-based functional materials. Herein, we developed a general descriptor (ΔE) for predicting the quantum yield of PET probes, with a threshold value of ∼0.6 eV. When ΔE < ∼0.6 eV, the quantum yield is low (mostly <2%) due to the substantial activation of PET in polar environments; when ΔE > ∼0.6 eV, the quantum yield is high because of the inhibition of PET. This simple yet effective descriptor is applicable to a wide range of fluorophores, such as BODIPY, fluorescein, rhodamine, and Si-rhodamine. This ΔE descriptor enables us not only to establish new applications for existing PET probes but also to quantitatively design novel PET-based fluorophores for wash-free bioimaging and AIEgen development.© 2020 American Chemical Society
URI
https://pr.ibs.re.kr/handle/8788114/7129
ISSN
0002-7863
Appears in Collections:
Center for Self-assembly and Complexity(복잡계 자기조립 연구단) > Journal Papers (저널논문)
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