A bionic strategy for addressing scale-span issues in all-carbon electrocatalytic systems

Efficient Flexible Counter Electrode Based on Modified Graphite Paper and in Situ Grown Copper Sulfide for Quantum Dot Sensitized Solar Cells

“…As a promising candidate for new generation photovoltaics, quantum dot sensitized solar cells (QDSCs) have attracted extensive attention with the initiative to solve the energy and environmental problems. − A typical QDSC comprises a glass photoanode with QD loaded TiO 2 mesoporous film, − a counter electrode (CE), − and liquid electrolyte. , Because of the design and adoption of a new kind of QD sensitizer (light absorption range extended to near-infrared window) and the interface engineering strategy to suppress charge recombination, the photovoltaic performance of QDSCs has been undergoing a rapid evolution with power conversion efficiency (PCE) increasing from less than 1% to 12.3%. − At present, the CEs have been less studied even though CEs might be the key to further increase PCE. − The CEs perform the function of withdrawing photoinduced electrons from external circuit and catalyzing them to reduce the oxidized electrolyte species. Meanwhile, superior properties of CEs, such as excellent electrical conductivity, high catalytic activity, and large specific surface area, are indispensable for optimizing device performance .…”