A dye-sensitized solar cell (DSC) using two dyes achieved high external quantum efficiency as sensitizers. We confirmed that terpyridine complex (black dye, Solaronix) and an indoline dye (D131, Mitsubishi Paper Mill) were adsorbed by the TiO2 electrode without either dye interfering with the electron transfer of the other dye to the electrode. The high performance of the new arrangement is made possible by the dissociation function of these two particular dyes. The multiple dye system achieved a power conversion efficiency of 11.0%. Moreover, the fabrication of the multiple dye system only mixed the two reagents in one pot.

Durable nanostructured cathode materials for efficient all-solid-state Li−S batteries were prepared using a conductive single-walled 3D graphene with a large pore volume as the cathode support material. At high loadings of the active material (50−60 wt %), microscale phase segregation was observed with a conventional cathode support material during the charging/discharging processes but this was suppressed by the confinement of insulating sulfur into the mesopores of the elastic and flexible nanoporous graphene with a large pore volume of 5.3 mL g −1 . As such, durable three-phase contact was achieved among the solid electrolyte, insulating sulfur, and the electrically conductive carbon. Consequently, the electrochemical performances of the assembled all-solidstate batteries were significantly improved and feasible under the harsh conditions of operation at 353 K, and improved cycling stability as well as the highest specific capacity of 716 mA h per gram of cathode (4.6 mA h cm −2 , 0.2 C) was achieved with high sulfur loading (50 wt %).

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