Abstract
Graphene is a promising material for vapor sensor applications because of its potential to be functionalized for specific chemical gases. In this work, we present a graphene gas sensor that uses single-stranded DNA (ssDNA) molecules as its sensing agent. We investigate the characteristics of graphene field effect transistors (FETs) coated with different ssDNAs. The sensitivity and recovery rate for a specific gas are modified according to the differences in the DNA molecules' Guanine (G) and Cytosine (C) content. ssDNA-functionalized devices show a higher recovery rate compared to bare graphene devices. Pattern analysis of a 2-by-2 sensor array composed of graphene devices functionalized with different-sequence ssDNA enables identification of NH3, NO2, CO, SO2 using Principle Component Analysis (PCA).
| Original language | English |
|---|---|
| Title of host publication | Proceedings of SPIE - The International Society for Optical Engineering |
| Publisher | SPIE |
| Volume | 9655 |
| ISBN (Print) | 9781628418651 |
| DOIs | |
| Publication status | Published - 2015 |
| Externally published | Yes |
| Event | 5th Asia-Pacific Optical Sensors Conference, APOS 2015 - Jeju, Korea, Republic of Duration: 2015 May 20 → 2015 May 22 |
Other
| Other | 5th Asia-Pacific Optical Sensors Conference, APOS 2015 |
|---|---|
| Country | Korea, Republic of |
| City | Jeju |
| Period | 15/5/20 → 15/5/22 |
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Keywords
- Graphene
- Principle Component Analysis
- Sensor Array
- Single-Stranded DNA
ASJC Scopus subject areas
- Applied Mathematics
- Computer Science Applications
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
Cite this
Selective vapor detection of an integrated chemical sensor array. / Jung, Youngmo; Kim, Young Jun; Choi, Jaebin; Lim, Chaehyun; Shin, Beom Ju; Moon, Hi Gyu; Lee, Taikjin; Kim, Jae Hun; Seo, Minah; Kang, Chong-Yun; Jun, Seong Chan; Lee, Seok; Kim, Chulki.
Proceedings of SPIE - The International Society for Optical Engineering. Vol. 9655 SPIE, 2015. 96551A.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Selective vapor detection of an integrated chemical sensor array
AU - Jung, Youngmo
AU - Kim, Young Jun
AU - Choi, Jaebin
AU - Lim, Chaehyun
AU - Shin, Beom Ju
AU - Moon, Hi Gyu
AU - Lee, Taikjin
AU - Kim, Jae Hun
AU - Seo, Minah
AU - Kang, Chong-Yun
AU - Jun, Seong Chan
AU - Lee, Seok
AU - Kim, Chulki
PY - 2015
Y1 - 2015
N2 - Graphene is a promising material for vapor sensor applications because of its potential to be functionalized for specific chemical gases. In this work, we present a graphene gas sensor that uses single-stranded DNA (ssDNA) molecules as its sensing agent. We investigate the characteristics of graphene field effect transistors (FETs) coated with different ssDNAs. The sensitivity and recovery rate for a specific gas are modified according to the differences in the DNA molecules' Guanine (G) and Cytosine (C) content. ssDNA-functionalized devices show a higher recovery rate compared to bare graphene devices. Pattern analysis of a 2-by-2 sensor array composed of graphene devices functionalized with different-sequence ssDNA enables identification of NH3, NO2, CO, SO2 using Principle Component Analysis (PCA).
AB - Graphene is a promising material for vapor sensor applications because of its potential to be functionalized for specific chemical gases. In this work, we present a graphene gas sensor that uses single-stranded DNA (ssDNA) molecules as its sensing agent. We investigate the characteristics of graphene field effect transistors (FETs) coated with different ssDNAs. The sensitivity and recovery rate for a specific gas are modified according to the differences in the DNA molecules' Guanine (G) and Cytosine (C) content. ssDNA-functionalized devices show a higher recovery rate compared to bare graphene devices. Pattern analysis of a 2-by-2 sensor array composed of graphene devices functionalized with different-sequence ssDNA enables identification of NH3, NO2, CO, SO2 using Principle Component Analysis (PCA).
KW - Graphene
KW - Principle Component Analysis
KW - Sensor Array
KW - Single-Stranded DNA
UR - http://www.scopus.com/inward/record.url?scp=84939192174&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84939192174&partnerID=8YFLogxK
U2 - 10.1117/12.2185259
DO - 10.1117/12.2185259
M3 - Conference contribution
AN - SCOPUS:84939192174
SN - 9781628418651
VL - 9655
BT - Proceedings of SPIE - The International Society for Optical Engineering
PB - SPIE
ER -