TY - GEN
T1 - Investigation and characterization of graphene for optical sensing
AU - Lai, King Wai Chiu
AU - Xi, Ning
AU - Fung, Carmen Kar Man
AU - Chen, Hongzhi
AU - Chen, Liangliang
AU - Yang, Ruiguo
AU - Song, Bo
PY - 2011
Y1 - 2011
N2 - We report a strong electron-photon interaction in exfoliated graphene observed at room temperature. Graphene has great potential to optoelectronic applications because of its excellent optical properties. Here, we demonstrate using the graphene-based structure for infrared detection under a zero-bias operation. When infrared light is projected to graphene, the graphene is capable to generate photocurrents. Besides, the electron-hole pairs generation of the graphene-based structure is independent of the direction of the polarized infrared source, and this makes graphene suitable for optical sensing. The device structure consists of graphene contacted with a pair of metal electrodes, which were fabricated using two nanomanipulation processes: dielectrophoresis and atomic force microscopic based nano assembly.
AB - We report a strong electron-photon interaction in exfoliated graphene observed at room temperature. Graphene has great potential to optoelectronic applications because of its excellent optical properties. Here, we demonstrate using the graphene-based structure for infrared detection under a zero-bias operation. When infrared light is projected to graphene, the graphene is capable to generate photocurrents. Besides, the electron-hole pairs generation of the graphene-based structure is independent of the direction of the polarized infrared source, and this makes graphene suitable for optical sensing. The device structure consists of graphene contacted with a pair of metal electrodes, which were fabricated using two nanomanipulation processes: dielectrophoresis and atomic force microscopic based nano assembly.
KW - Graphene
KW - infrared sensing
KW - optical detection
KW - photoelectric effect
UR - http://www.scopus.com/inward/record.url?scp=84858961314&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84858961314&partnerID=8YFLogxK
U2 - 10.1109/NANO.2011.6144583
DO - 10.1109/NANO.2011.6144583
M3 - Conference contribution
AN - SCOPUS:84858961314
SN - 9781457715143
T3 - Proceedings of the IEEE Conference on Nanotechnology
SP - 1124
EP - 1127
BT - 2011 11th IEEE International Conference on Nanotechnology, NANO 2011
T2 - 2011 11th IEEE International Conference on Nanotechnology, NANO 2011
Y2 - 15 August 2011 through 19 August 2011
ER -