Graphene Transparent Conductive Film – Progress, Challenges and Prospects
Xuesong Li
State Key Laboratory of Electronic Thin Films and Integrated Devices and School of
Microelectronics and Solid State Electronics
University of Electronic Science and Technology of China
Chengdu 610054, China
E-mail:
Graphene has attracted great interests due to its unique properties. It is 97.7% transparent to
visible light, electrical conductive, chemical stable, and flexible. All these characteristics
make graphene promising for application as transparent conductive film (TCF) for both rigid
and flexible devices. In the past several years, many graphene TCF prototypes have been
demonstrated and even some such as graphene touch panel used in cell phone has been
commercialized. Graphene TCF can be made by coating of graphene nanoflakes, which has
lower cost but conductivity as well; or by transfer of large area graphene film grown on metal
substrate such as Cu by chemical vapor deposition of hydrocarbons, which is more
conductive but expensive, too. Nevertheless, there are still some challenges for graphene
applications as TCF. For example, as an alternative, the cost of graphene TCF is still high
compared to current materials such as ITO. The conductivity of graphene TCF is far from its
limit as predicted theoretically, which is majorly due to its low carrier mobility due to its
imperfect structure of the synthetic film. This talk will review the progress of graphene TCF
and its challenges and prospects.
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