Graphene oxide/N-methyl-2-pyrrolidone charge-transfer complexes for molecular detection

Guoqing Xin; Suhyun Gong; Namhun Kim; Jehyung Kim; Wontae Hwang; Jaewook Nam; Yong Hoon Cho; Sung Min Cho; Heeyeop Chae

doi:10.1016/j.snb.2012.09.003

Graphene oxide/N-methyl-2-pyrrolidone charge-transfer complexes for molecular detection

Guoqing Xin, Suhyun Gong, Namhun Kim, Jehyung Kim, Wontae Hwang, Jaewook Nam, Yong Hoon Cho, Sung Min Cho, Heeyeop Chae

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

7 Citations (Scopus)

Abstract

Charge transfer complex (CTC) has been formed between photoluminescent graphene oxide (GO) as electron acceptor and N-methylpyrrolidone (NMP) as electron donor. Studies of UV absorption and photoluminescence (PL) suggest that the formation of CTC results in a red-shift of absorption and a new PL emission. Decay dynamics was described by time-resolved PL spectra and a clear ultrafast charge-transfer process was observed from the PL rise times. The PL of the CTC was sensitive to external components, allowing molecular detection of 7,7,8,8-tetracyanoquinodimethane and 1,3,5-trinitrobenzene up to hundred nanomolar concentration levels through the photoluminescence signals.

Original language	English
Pages (from-to)	81-85
Number of pages	5
Journal	Sensors and Actuators, B: Chemical
Volume	176
DOIs	https://doi.org/10.1016/j.snb.2012.09.003
Publication status	Published - 2013
Externally published	Yes

Keywords

Charge-transfer complex
Graphene
Graphene oxide
Molecular sensor
Time-resolved photoluminescent spectra

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

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10.1016/j.snb.2012.09.003

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@article{7a3748a761e7475ea0db3cf69a0c33ce,

title = "Graphene oxide/N-methyl-2-pyrrolidone charge-transfer complexes for molecular detection",

abstract = "Charge transfer complex (CTC) has been formed between photoluminescent graphene oxide (GO) as electron acceptor and N-methylpyrrolidone (NMP) as electron donor. Studies of UV absorption and photoluminescence (PL) suggest that the formation of CTC results in a red-shift of absorption and a new PL emission. Decay dynamics was described by time-resolved PL spectra and a clear ultrafast charge-transfer process was observed from the PL rise times. The PL of the CTC was sensitive to external components, allowing molecular detection of 7,7,8,8-tetracyanoquinodimethane and 1,3,5-trinitrobenzene up to hundred nanomolar concentration levels through the photoluminescence signals.",

keywords = "Charge-transfer complex, Graphene, Graphene oxide, Molecular sensor, Time-resolved photoluminescent spectra",

author = "Guoqing Xin and Suhyun Gong and Namhun Kim and Jehyung Kim and Wontae Hwang and Jaewook Nam and Cho, {Yong Hoon} and Cho, {Sung Min} and Heeyeop Chae",

note = "Funding Information: This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology ( 2010-0015035 ) and ( 2009-0092950 ). ",

year = "2013",

doi = "10.1016/j.snb.2012.09.003",

language = "English",

volume = "176",

pages = "81--85",

journal = "Sensors and Actuators, B: Chemical",

issn = "0925-4005",

publisher = "Elsevier",

}

TY - JOUR

T1 - Graphene oxide/N-methyl-2-pyrrolidone charge-transfer complexes for molecular detection

AU - Xin, Guoqing

AU - Gong, Suhyun

AU - Kim, Namhun

AU - Kim, Jehyung

AU - Hwang, Wontae

AU - Nam, Jaewook

AU - Cho, Yong Hoon

AU - Cho, Sung Min

AU - Chae, Heeyeop

N1 - Funding Information: This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology ( 2010-0015035 ) and ( 2009-0092950 ).

PY - 2013

Y1 - 2013

N2 - Charge transfer complex (CTC) has been formed between photoluminescent graphene oxide (GO) as electron acceptor and N-methylpyrrolidone (NMP) as electron donor. Studies of UV absorption and photoluminescence (PL) suggest that the formation of CTC results in a red-shift of absorption and a new PL emission. Decay dynamics was described by time-resolved PL spectra and a clear ultrafast charge-transfer process was observed from the PL rise times. The PL of the CTC was sensitive to external components, allowing molecular detection of 7,7,8,8-tetracyanoquinodimethane and 1,3,5-trinitrobenzene up to hundred nanomolar concentration levels through the photoluminescence signals.

AB - Charge transfer complex (CTC) has been formed between photoluminescent graphene oxide (GO) as electron acceptor and N-methylpyrrolidone (NMP) as electron donor. Studies of UV absorption and photoluminescence (PL) suggest that the formation of CTC results in a red-shift of absorption and a new PL emission. Decay dynamics was described by time-resolved PL spectra and a clear ultrafast charge-transfer process was observed from the PL rise times. The PL of the CTC was sensitive to external components, allowing molecular detection of 7,7,8,8-tetracyanoquinodimethane and 1,3,5-trinitrobenzene up to hundred nanomolar concentration levels through the photoluminescence signals.

KW - Charge-transfer complex

KW - Graphene

KW - Graphene oxide

KW - Molecular sensor

KW - Time-resolved photoluminescent spectra

UR - http://www.scopus.com/inward/record.url?scp=84875439921&partnerID=8YFLogxK

U2 - 10.1016/j.snb.2012.09.003

DO - 10.1016/j.snb.2012.09.003

M3 - Article

AN - SCOPUS:84875439921

SN - 0925-4005

VL - 176

SP - 81

EP - 85

JO - Sensors and Actuators, B: Chemical

JF - Sensors and Actuators, B: Chemical

ER -

Graphene oxide/N-methyl-2-pyrrolidone charge-transfer complexes for molecular detection

Abstract

Keywords

ASJC Scopus subject areas

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