Structural Phase Transition from Tin (IV) Sulfide to Tin (II) Sulfide and the enhanced Performance by Introducing Graphene in Dye-sensitized Solar Cells

Add time:08/17/2019    Source:sciencedirect.com

Annealing is an important process for fabricating counter-electrodes of dye-sensitized solar cells. Along with the annealing process, however, structural phase transitions sometimes occur, which have significantly effect on the performance of the electrodes and cells, but is often ignored. Here, we report such a phase transition in which tin (IV) sulfide is transformed into TIN (II) SULFIDE (cas 1314-95-0) after annealing in an argon atmosphere. The precursor and final product are respectively fabricated together with reduced graphene to form nanocomposites that are subsequently used as the counter-electrodes. It is found that the power conversion efficiency of dye-sensitized solar cell with the counter-electrode made of tin (II) sulfide and reduced graphene oxide nanocomposites achieves 7.47%. The efficiency is much higher than that (5.30%) of a device using tin (IV) sulfide and reduced graphene oxide nanocomposites as counter-electrode and is even comparable to the value (7.75%) of a cell with conventional platinum as counter-electrode.

We also recommend Trading Suppliers and Manufacturers of TIN (II) SULFIDE (cas 1314-95-0). Pls Click Website Link as below: cas 1314-95-0 suppliers

Prev:Development of tin (II) sulfide nanostructured films with uniform surface morphology by two-step growth process
Next:Na/Zn/Sn/S (NaZTS): quaternary metal sulfide nanosheets for efficient adsorption of radioactive strontium ions)