摘要
Herein,an FMS/CC composite was successfully fabricated by depositing FeMoS_(4)onto a pristine carbon fiber cloth(CC)substrate via a facile two-step hydrothermal method.The amorphous nature of the FMS/CC compos-ite endows it with abundant catalytically active sites,thereby accelerating the reduction of I_(3)^(-).More importantly,the dye-sensitized solar cells(DSSCs)prepared by scraping it on flexible titanium mesh with low resistance had low series resistance(Rs).Electrochemical characterizations revealed that the DSSCs employing the FMS/CC counter electrode achieved a power conversion efficiency(PCE)of ca.9.51%(surpassing the ca.8.15%efficiency of the Pt counter electrode),open-circuit voltage(Voc)of ca.0.79 V,short-circuit current density(Jsc)of ca.18.31 mA·cm^(-2),and fill factor(FF)of ca.0.65.Moreover,after 100 times of cyclic voltammetry(CV)test,the CV curve remained unchanged,indicating the excellent stability of FMS/CC in the electrolyte containing I_(3)^(-)/I^(-).
通过两步水热法在清洁碳布(CC)基底上负载FeMoS_(4)(FMS),成功制备出FMS/CC复合材料。FMS/CC的非晶特性使其具有额外的活性位点,进而加速了I_(3)^(-)的还原。此外,将其刮涂在具有较低电阻的柔性钛网上制备得到的染料敏化太阳能电池(DSSCs)具有较低的串联电阻(Rs)。电化学测试表明,采用FMS/CC为对电极的DSSCs实现了约9.51%的光电转换效率(超过了铂对电极的约8.15%的效率),开路电压约为0.79 V,短路电流密度约为18.31 mA·cm^(-2),填充因子约为0.65,并且经过100次循环伏安法(CV)测试后,CV曲线保持不变,表明FMS/CC在含有I_(3)^(-)/I^(-)的电解质中非常稳定。
出处
《无机化学学报》
北大核心
2025年第9期1916-1926,共11页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金(No.52271209)
河北省教育厅科学研究项目(No.JCZX2025019)
河北大学交叉学科研究项目(No.DXK202401)资助。
