| 초록 |
Among the photovoltaic devices, dye-sensitized solar cell (DSSC) is one of the promising energy conversion devices because of its low fabrication cost, environmental friendly nature and high conversion efficiency. However, the use of rare metals such as Pt as a counter electrode (CE) is one of a drawback of DSSC devices for real-life applications. Therefore, in this study, soft-templated tellurium-doped mesoporous carbons (Te-SMC) were synthesized by the simple pyrolysis of PAN-b-PBA block copolymer in the presence of tellurium precursor for replacing the Pt CE. In the results of catalytic performances, Te-SMC exhibited outstanding electrocatalytic activity for cobalt and iodine redox couples. The results show that a maximum conversion efficiency of 11.64 and 9.67 % can be achieved under one sun illumination (AM 1.5G) for SGT021/Co(bpy)32+/3+ and N719/I-/I3-based devices, respectively. |
