Nitrogen‐Doped Graphene Foams as Metal‐Free Counter Electrodes in High‐Performance Dye‐Sensitized Solar Cells
Yuhua Xue(Case Western Reserve University), Jun Liu(Case Western Reserve University), Hao Chen(Wenzhou Medical University), Ruigang Wang(Youngstown State University), Dingqiang Li(Youngstown State University), Jia Qu(Wenzhou Medical University), Liming Dai(Wenzhou Medical University)
Cited by 622
Abstract
Efficient without metal: Nitrogen-doped graphene foams with a nitrogen content up to 7.6 % have been prepared and used as counter electrodes in dye-sensitized solar cells (DSSCs; see picture). The doping with nitrogen leads to a power conversion efficiency of 7.07 %. This is one of the highest values reported for DSSCs with carbon-based metal-free counter electrodes.
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