Solution-Processable Carbon-Based Electrodes for All-Carbon Solar Cells



Evaluation of Solution-Processable Carbon-Based Electrodes for All-Carbon Solar Cells

Marc P. Ramuz †, Michael Vosgueritchian †, Peng Wei †, Chenggong Wang §, Yongli Gao §, Yingpeng Wu, Yongsheng Chen, and Zhenan Bao †*


Carbon allotropes possess unique and interesting physical, chemical, and electronic properties that make them attractive for next-generation electronic devices and solar cells. In this report, we describe our efforts into the fabrication of the first reported all-carbon solar cell in which all components (the anode, active layer, and cathode) are carbon based. First, we evaluate the active layer, on standard electrodes, which is composed of a bilayer of polymer sorted semiconducting single-walled carbon nanotubes and C60. This carbon-based active layer with a standard indium tin oxide anode and metallic cathode has a maximum power conversion efficiency of 0.46% under AM1.5 Sun illumination. Next, we describe our efforts in replacing the electrodes with carbon-based electrodes, to demonstrate the first all-carbon solar cell, and discuss the remaining challenges associated with this process.

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Department of Chemical Engineering, Stanford University, 381 North-South Mall, Stanford, California 94305, United States
§ Department of Physics and Astrophysics, University of Rochester, Rochester, New York 14627, United States
Institute of Polymer Chemistry, Nankai University, Weijin Road 94, Tianjin 300071, China