title: Low-temperature synthesis of multilayer graphene/amorphous carbon hybrid films and their potential application in solar cells.
abstract: The effect of reaction temperature on the synthesis of graphitic thin film on nickel substrate was investigated in the range of 400°C to 1,000°C. Amorphous carbon (a-C) film was obtained at 400°C on nickel foils by chemical vapor deposition; hybrid films of multilayer graphene (MLG) and a-C were synthesized at a temperature of 600°C, while MLG was obtained at temperatures in excess of 800°C. Schottky-junction solar cell devices prepared using films produced at 400°C, 600°C, 800°C, and 1,000°C coupled with n-type Si demonstrate power conversion efficiencies of 0.003%, 0.256%, 0.391%, and 0.586%, respectively. A HNO3 treatment has further improved the efficiencies of the corresponding devices to 0.004%, 1.080%, 0.800%, and 0.820%, respectively. These films are promising materials for application in low-cost and simple carbon-based solar cells.
authors.affiliation: Laboratory of Advanced Materials, Department of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China. rxl40@psu.edu.
authors.forename: Tongxiang
authors.initials: T
authors.lastname: Cui
authors.forename: Ruitao
authors.initials: R
authors.lastname: Lv
authors.forename: Zheng-Hong
authors.initials: ZH
authors.lastname: Huang
authors.forename: Hongwei
authors.initials: H
authors.lastname: Zhu
authors.forename: Yi
authors.initials: Y
authors.lastname: Jia
authors.forename: Shuxiao
authors.initials: S
authors.lastname: Chen
authors.forename: Kunlin
authors.initials: K
authors.lastname: Wang
authors.forename: Dehai
authors.initials: D
authors.lastname: Wu
authors.forename: Feiyu
authors.initials: F
authors.lastname: Kang