Utomo Drajad Satrio, Kim Jae Ho, Lee Daseul, Park Juyun, Kang Yong-Cheol, Kim Yong Hyun, Choi Jin Woo, Song Myungkwan
Surface Technology Division, Korea Institute of Materials Science (KIMS), 797 Changwondaero, Changwon, Gyeongnam 51508, Republic of Korea; Department of Display Engineering, Pukyong National University, 45 Yongso-Ro, Nam-gu, Busan 48513, Republic of Korea.
Surface Technology Division, Korea Institute of Materials Science (KIMS), 797 Changwondaero, Changwon, Gyeongnam 51508, Republic of Korea.
J Colloid Interface Sci. 2021 Feb 15;584:520-527. doi: 10.1016/j.jcis.2020.10.003. Epub 2020 Oct 12.
A novel hierarchical solution-processed fractional structured molybdenum oxide (MoO) catalyst is fabricated from tricarbonyltris (propionitrile) molybdenum and used as the counter electrode of all-solid-state fiber-shaped dye-sensitized solar cells (S-FDSSC). The Tafel plot results and electrical impedance spectroscopy suggest that the use of the fractional structured MoO catalyst enhances the efficiency of the reduction of I to 3I at the counter electrode/electrolyte interface. Because of the improvements of the short-current circuit and fill factor, the power conversion efficiency of the MoO-modified S-FDSSC improves by 60% compared with that of the reference S-FDSSC. In addition, because of the robust fractional structure of MoO, the MoO-modified S-FDSSC maintains 90% and 95% of efficiency after 350-fold bending and the incident light angle dependency test, respectively. At 65% humidity and at 65 °C, the power conversion efficiency of the MoO-modified device decreases by <20% after 350 h of storage, while that of the reference device drops by more than 70%.
一种新型的分级溶液法制备的分数结构氧化钼（MoO）催化剂由三羰基三（丙腈）钼制成，并用作全固态纤维状染料敏化太阳能电池（S-FDSSC）的对电极。塔菲尔曲线结果和电化学阻抗谱表明，使用分数结构的MoO催化剂可提高对电极/电解质界面处I还原为3I的效率。由于短路电流和填充因子的改善，与参考S-FDSSC相比，MoO修饰的S-FDSSC的功率转换效率提高了60%。此外，由于MoO具有坚固的分数结构，MoO修饰的S-FDSSC在350倍弯曲和入射光角度依赖性测试后分别保持了90%和95%的效率。在65%湿度和65°C条件下，MoO修饰器件在储存350小时后的功率转换效率下降<20%，而参考器件的功率转换效率下降超过70%。
