Electrical and Optical Properties of Graphene Mono- and Multi-layers; Towards Graphene-Based Optoelectronics
Graphene, a newly discovered material with unusual electrical and optical properties, has attracted interest for a number of potential applications. One of the most actively pursued applications is using graphene as a transparent conducting electrode for use in solar cells, diplays or touch screens. In this work, two studies are pursued in parallel to explore the electrical and optical properties of graphene. Graphene was prepared on copper by the standard chemical vapor deposition (CVD) method 1, the preparation procedure and conditions are described in 2. The effect of chemical p-type doping on graphene stacks was studied in order to reduce the sheet resistance of graphene. The doping decreases the sheet resistance by a factor of 3, yielding films comprised of eight stacked layers with a sheet resistance of 90 Ω/at a transmittance of 80% 2. A theoretical model that accurately describes the stacked graphene film system as a resistor network was also developed 2. The experimental data shows a linear increase in conductivity with the number of graphene layers, indicating that each layer provides an additional transport channel, in good agreement with the theoretical model (Fig. 1)
Amal Kasry Libor Vyklicky George Tulevski Marcelo A.Kuroda Ageeth A.Bol Glenn J.Martyna Bernhard Menges Satoshi Oida Mostafa El Ashry Matthew Copel
Egypt-IBM Nanotechnology Research Center (EGNC), Smart Village, Buliding 121, Cairo-Alexandria Deser IBM T.J.Watson Research Center, 1101 Kitchawan Rd, Yorktown Heights, NY 10598, USA IBM T.J.Watson Research Center, 1101 Kitchawan Rd, Yorktown Heights, NY 10598, USA IBM T.J.Watson Re 4Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
国际会议
2010 8th International Vacuum Electron Sources Conference and NANOcarbon(第八届真空电子源和纳米碳国际会议)
南京
英文
119-120
2010-10-14（万方平台首次上网日期，不代表论文的发表时间）