Strong and stable doping of carbon nanotubes and graphene by MoOx for transparent electrodes.
MoO(x) has been used for organic semiconductor doping, but it had been considered an inefficient and/or unstable dopant. We report that MoO(x) can strongly and stably dope carbon nanotubes and graphene. Thermally annealed MoO(x)-CNT composites can form durable thin film electrodes with sheet resistances of 100 Ω/sq at 85% transmittance plain and 85 Ω/sq at 83% transmittance with a PEDOT:PSS adlayer. Sheet resistances change less than 10% over 20 days in ambient and less than 2% with overnight heating to 300 °C in air. The MoO(x) can be easily deposited either by thermal evaporation or from solution-based precursors. Excellent stability coupled with high conductivity makes MoO(x)-CNT composites extremely attractive candidates for practical transparent electrodes.
Stanford University, Stanford, California 94305, United States.
Sondra L
SL
Hellstrom
Michael
M
Vosgueritchian
Randall M
RM
Stoltenberg
Irfan
I
Irfan
Mallory
M
Hammock
Yinchao Bril
YB
Wang
Chuancheng
C
Jia
Xuefeng
X
Guo
Yongli
Y
Gao
Zhenan
Z
Bao