ssDNA를 이용한 그래핀 가스 센서 = Vapor Detection of ssDNA Decorated Graphene Transistor

다국어 초록 (Multilingual Abstract)

We report a way to improve the ability of graphene to operate as a gas sensor by applying single stranded deoxyribonucleic acid (DNA). The sensitivity and recovery of the DNA-graphene sensor depending on the different DNA sequences are analyzed. The different sensor responses to reactive chemical vapors are demonstrated in the time domain. Because of the chemical gating effect of the deposited DNA, the resulting devices show complete and rapid recovery to baseline unlike the bare graphene at room temperature. The application of the pattern recognition technique can increase the potential of DNA-graphene sensors as a chemical vapor classifier.

참고문헌 (Reference)

1 W. Wua, "Wafer-scale synthesis of graphene by chemical vapor deposition and its application in hydrogen sensing" 150 : 296-300, 2010

2 W. S. Jung, "Ultraconformal contact Ttansfer of monolayer graphene on metal to various substrates" 1-7, 2014

3 J. Xia, "Measurement of the quantum capacitance of graphene" 4 : 505-509, 2009

4 D. Galimberti, "Infrared intensities and charge mobility in hydrogen bonded complexes" 139 : 074304-, 2013

5 A. Lipatov, "Highly selective gas sensor arrays based on thermally reduced graphene oxide" 5 : 5426-5434, 2013

6 T. Gan, "Electrochemical sensors based on graphene materials" 175 : 1-19, 2011

7 F. Schedin, "Detection of individual gas molecules adsorbed on graphene" 6 : 652-655, 2007

8 Y. Lu, "DNA-decorated graphene chemical sensors" 97 : 083107-, 2010