High‐Efficiency Graphene‐Oxide/Silicon Solar Cells with an Organic‐Passivated Interface
Qing Gao, Jun Yan, Lu Wan, Cuili Zhang, Zhixi Wen, Xin Zhou, Han Li, Feng Li, Jingwei Chen, Jingwei Chen, Jianxin Guo, Dengyuan Song, Benjamin S. Flavel, Jianhui Chen, Jianhui Chen
Abstract
Abstract A breakthrough in graphene‐oxide/silicon heterojunction solar cells is presented in which edge‐oxidized graphene and an in‐plane charge transfer dopant (Nafion) are combined to form a high‐quality passivating contact scheme. A graphene oxide (GO):Nafion ink is developed and an advanced back‐junction GO:Nafion/n‐Si solar cell with a high‐power conversion efficiency (18.8%) and large area (5.5 cm 2 ) is reported. This scalable solution‐based processing technique has the potential to enable low‐cost carbon/silicon heterojunction photovoltaic devices.
Topics & Concepts
GrapheneMaterials scienceHeterojunctionOxideOptoelectronicsSiliconPolymer solar cellGraphene oxide paperDopantEnergy conversion efficiencyNanotechnologyOrganic solar cellSolar cellGraphene nanoribbonsComposite materialDopingPolymerMetallurgyGraphene research and applicationsNanowire Synthesis and ApplicationsSilicon Nanostructures and Photoluminescence