AN Nan, BAI Lang, LI Xiao-jun, LI Wei-long, REN Zhao-yu. Experimental Research on Hall Effect of Graphene at Room-temperature[J]. Chinese Journal of Luminescence, 2013,(1): 45-48
AN Nan, BAI Lang, LI Xiao-jun, LI Wei-long, REN Zhao-yu. Experimental Research on Hall Effect of Graphene at Room-temperature[J]. Chinese Journal of Luminescence, 2013,(1): 45-48 DOI: 10.3788/fgxb20133401.0045.
The grapheme samples were deposited on glass substrates by chemical vapor deposition(CVD). Both the length and width of graphene samples were 1.23 cm
and the thickness was 3 atomic layer thickness setting scales. The Hall effects at room temperature of the samples were studied. There was good ohmic contact between the sample and the electrode. By using van der Pauw method
the Hall voltage of the samples were measured under the magnetic field strength 0.353 T and different electric currents. The calculating results show that the graphene Hall coefficient
R
H
is 7.00×10
-7
m
3
/C
the carrier concentration
n
is 10.52×10
24
/m
3
and the Hall element production sensitivity
K
H
is 6.87×10
2
m
2
/C.
关键词
石墨烯测量霍尔效应
Keywords
graphenemeasurementHall effect
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