title: Enhanced photon management in silicon thin film solar cells with different front and back interface texture.
abstract: Light trapping and photon management of silicon thin film solar cells can be improved by a separate optimization of the front and back contact textures. A separate optimization of the front and back contact textures is investigated by optical simulations taking realistic device geometries into consideration. The optical simulations are confirmed by experimentally realized 1 μm thick microcrystalline silicon solar cells. The different front and back contact textures lead to an enhancement of the short circuit current by 1.2 mA/cm(2) resulting in a total short circuit current of 23.65 mA/cm(2) and an energy conversion efficiency of 8.35%.
authors.affiliation: Research Center for Functional Materials and Nanomolecular Science, Electronic Devices and Nanophotonics Laboratory, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany.
authors.forename: Asman
authors.initials: A
authors.lastname: Tamang
authors.affiliation: Department of Physical Electronics, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8550, Japan.
authors.forename: Aswin
authors.initials: A
authors.lastname: Hongsingthong
authors.affiliation: Research Center for Functional Materials and Nanomolecular Science, Electronic Devices and Nanophotonics Laboratory, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany.
authors.forename: Vladislav
authors.initials: V
authors.lastname: Jovanov
authors.affiliation: Department of Physical Electronics, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8550, Japan.
authors.forename: Porponth
authors.initials: P
authors.lastname: Sichanugrist
authors.affiliation: Research Center for Functional Materials and Nanomolecular Science, Electronic Devices and Nanophotonics Laboratory, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany.
authors.forename: Bakhtiar A
authors.initials: BA
authors.lastname: Khan
authors.affiliation: Research Center for Functional Materials and Nanomolecular Science, Electronic Devices and Nanophotonics Laboratory, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany.
authors.forename: Rahul
authors.initials: R
authors.lastname: Dewan
authors.affiliation: Department of Physical Electronics, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8550, Japan.|Photovoltaics Research Center (PVREC), Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 158-0082, Japan.
authors.forename: Makoto
authors.initials: M
authors.lastname: Konagai
authors.affiliation: Research Center for Functional Materials and Nanomolecular Science, Electronic Devices and Nanophotonics Laboratory, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany.
authors.forename: Dietmar
authors.initials: D
authors.lastname: Knipp