期刊
ACS APPLIED MATERIALS & INTERFACES
卷 7, 期 17, 页码 9134-9138出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b01166
关键词
organic photovoltaic; templating layer; copper iodide; C-70; low donor concentration
资金
- Midcareer Researcher Program through an National Research Foundation - Ministry of Science, ICT and Future Planning [2014R1A2A1A01002030]
We report a three-dimensional (3D) porous carbon electrode containing both nanoscale and microscale porosity, which has been hierarchically organized to provide efficient ion and electron transport. The electrode organization is provided via the colloidal self-assembly of monodisperse starburst carbon spheres (MSCSs). The periodic close-packing of the MSCSs provides continuous pores inside the 3D structure that facilitate ion and electron transport (electrode electrical conductivity similar to 0.35 S m(-1)), and the internal meso- and micropores of the MSCS provide a good specific capacitance. The capacitance of the 3D-ordered porous MSCS electrode is similar to 58 F g(-1) at 0.58 A g(-1), 48% larger than that of disordered MSCS electrode at the same rate. At 1 A g(-1) the capacitance of the ordered electrode is 57 F g(-1) (95% of the 0.24 A g(-1) value), which is 64% greater than the capacitance of the disordered electrode at the same rate. The ordered electrode preserves 95% of its initial capacitance after 4000 charging/discharging cycles.
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