title: Enhanced light absorption of silicon nanotube arrays for organic/inorganic hybrid solar cells.
abstract: By combining nanoimprint lithography technique and a two-step lift-off process, a Si nanotube array is fabricated and applied as a light absorber for n-Si/PEDOT:PSS hybrid solar cells. The light is effectively trapped within the nanotubes and the device reveals a Jsc of 29.9 mA · cm(-2) and a power conversion efficiency of 10.03%, which is an enhancement of 13.4% compared to the cell having the best-known Si architecture of nanocones as a light absorber to date.
authors.affiliation: School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 500-712, Republic of Korea.
authors.forename: Huisu
authors.initials: H
authors.lastname: Jeong
authors.forename: Hui
authors.initials: H
authors.lastname: Song
authors.forename: Yusin
authors.initials: Y
authors.lastname: Pak
authors.forename: Il Keun
authors.initials: IK
authors.lastname: Kwon
authors.forename: Kyubong
authors.initials: K
authors.lastname: Jo
authors.forename: Heon
authors.initials: H
authors.lastname: Lee
authors.forename: Gun Young
authors.initials: GY
authors.lastname: Jung
keywords: light trapping; nanoimprint lithography; nanotube; photovoltaics; solar cell