Photoluminescence quenching of graphene oxide by metal ions in aqueous media

Di Yan Wang; Duan Wei Wang; Hsin An Chen; Tin Reui Chen; Shao Sian Li; Yun Chieh Yeh; Tsung Rong Kuo; Jiahn Haur Liao; Yu Ching Chang; Wei Ting Chen; Shih Hsiung Wu; Cho Chun Hu; Chun Wei Chen; Chia Chun Chen

doi:10.1016/j.carbon.2014.10.017

Photoluminescence quenching of graphene oxide by metal ions in aqueous media

Di Yan Wang, Duan Wei Wang, Hsin An Chen, Tin Reui Chen, Shao Sian Li, Yun Chieh Yeh, Tsung Rong Kuo, Jiahn Haur Liao, Yu Ching Chang, Wei Ting Chen, Shih Hsiung Wu, Cho Chun Hu, Chun Wei Chen, Chia Chun Chen

Research output: Contribution to journal › Article › peer-review

28 Citations (Scopus)

Abstract

The photoluminescence (PL) quenching of water-soluble graphene oxide (GO) solution was systematically investigated in the presence of transition metal ions. Their PL spectra were analyzed by the Stern-Volmer equation, and the trend of the quenching efficiency was Fe²⁺ > Co²⁺ > Ni²⁺ > Cd²⁺ > Hg²⁺. The results of the steady-state and time-resolved PL spectra of the GO solution suggested that the PL quenching was related to the new non-radiative optical transitions from the bridging states due to the hybridization of the sp³ orbitals of GO and the 3d orbitals of metal ions, proven by density functional theory calculations. The overall results indicated that the bridging states from the hybridization of GO sp³ and unfilled 3d orbitals (Fe²⁺) in comparison with filled 3d orbitals (Hg²⁺) were highly localized, and their energy levels were more suitable for being non-radiative transition states.

Original language	English
Pages (from-to)	24-30
Number of pages	7
Journal	Carbon
Volume	82
Issue number	C
DOIs	https://doi.org/10.1016/j.carbon.2014.10.017
Publication status	Published - 2015
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
General Materials Science

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10.1016/j.carbon.2014.10.017

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@article{fccfbd2b591848ac871806696c5faa89,

title = "Photoluminescence quenching of graphene oxide by metal ions in aqueous media",

abstract = "The photoluminescence (PL) quenching of water-soluble graphene oxide (GO) solution was systematically investigated in the presence of transition metal ions. Their PL spectra were analyzed by the Stern-Volmer equation, and the trend of the quenching efficiency was Fe2+ > Co2+ > Ni2+ > Cd2+ > Hg2+. The results of the steady-state and time-resolved PL spectra of the GO solution suggested that the PL quenching was related to the new non-radiative optical transitions from the bridging states due to the hybridization of the sp3 orbitals of GO and the 3d orbitals of metal ions, proven by density functional theory calculations. The overall results indicated that the bridging states from the hybridization of GO sp3 and unfilled 3d orbitals (Fe2+) in comparison with filled 3d orbitals (Hg2+) were highly localized, and their energy levels were more suitable for being non-radiative transition states.",

author = "Wang, {Di Yan} and Wang, {Duan Wei} and Chen, {Hsin An} and Chen, {Tin Reui} and Li, {Shao Sian} and Yeh, {Yun Chieh} and Kuo, {Tsung Rong} and Liao, {Jiahn Haur} and Chang, {Yu Ching} and Chen, {Wei Ting} and Wu, {Shih Hsiung} and Hu, {Cho Chun} and Chen, {Chun Wei} and Chen, {Chia Chun}",

note = "Funding Information: This work is supported by National Science Council, Taiwan (Project NSC 99-2119-M-002-012- and NSC 99-2120-M-003-001-). ",

year = "2015",

doi = "10.1016/j.carbon.2014.10.017",

language = "English",

volume = "82",

pages = "24--30",

journal = "Carbon",

issn = "0008-6223",

publisher = "Elsevier Ltd",

number = "C",

}

TY - JOUR

T1 - Photoluminescence quenching of graphene oxide by metal ions in aqueous media

AU - Wang, Di Yan

AU - Wang, Duan Wei

AU - Chen, Hsin An

AU - Chen, Tin Reui

AU - Li, Shao Sian

AU - Yeh, Yun Chieh

AU - Kuo, Tsung Rong

AU - Liao, Jiahn Haur

AU - Chang, Yu Ching

AU - Chen, Wei Ting

AU - Wu, Shih Hsiung

AU - Hu, Cho Chun

AU - Chen, Chun Wei

AU - Chen, Chia Chun

N1 - Funding Information: This work is supported by National Science Council, Taiwan (Project NSC 99-2119-M-002-012- and NSC 99-2120-M-003-001-).

PY - 2015

Y1 - 2015

N2 - The photoluminescence (PL) quenching of water-soluble graphene oxide (GO) solution was systematically investigated in the presence of transition metal ions. Their PL spectra were analyzed by the Stern-Volmer equation, and the trend of the quenching efficiency was Fe2+ > Co2+ > Ni2+ > Cd2+ > Hg2+. The results of the steady-state and time-resolved PL spectra of the GO solution suggested that the PL quenching was related to the new non-radiative optical transitions from the bridging states due to the hybridization of the sp3 orbitals of GO and the 3d orbitals of metal ions, proven by density functional theory calculations. The overall results indicated that the bridging states from the hybridization of GO sp3 and unfilled 3d orbitals (Fe2+) in comparison with filled 3d orbitals (Hg2+) were highly localized, and their energy levels were more suitable for being non-radiative transition states.

AB - The photoluminescence (PL) quenching of water-soluble graphene oxide (GO) solution was systematically investigated in the presence of transition metal ions. Their PL spectra were analyzed by the Stern-Volmer equation, and the trend of the quenching efficiency was Fe2+ > Co2+ > Ni2+ > Cd2+ > Hg2+. The results of the steady-state and time-resolved PL spectra of the GO solution suggested that the PL quenching was related to the new non-radiative optical transitions from the bridging states due to the hybridization of the sp3 orbitals of GO and the 3d orbitals of metal ions, proven by density functional theory calculations. The overall results indicated that the bridging states from the hybridization of GO sp3 and unfilled 3d orbitals (Fe2+) in comparison with filled 3d orbitals (Hg2+) were highly localized, and their energy levels were more suitable for being non-radiative transition states.

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JO - Carbon

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Photoluminescence quenching of graphene oxide by metal ions in aqueous media

Abstract

ASJC Scopus subject areas

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