Cobalt sulfide (CoS) agglomerated nanoparticle thin films obtained by a facile chemical bath method at different deposition times. The CoS counter electrode (CE) deposited at 3 h deposition time (CC-3h) based quantum dot sensitized solar cells (QDSSCs) achieves higher power conversion efficiency (η) of 3.67% than those of CC-2h (1.83%), CC-4h (2.52%), and Pt (1.48%) CEs, under one sun illumination (100 mW cm^-2, AM 1.5 G). The electrochemical analysis revealed that CC-3h CE shows a smaller charge transfer resistance (9.22 Ω) at the CE/electrolyte interface than the CC-2h (23.34 Ω), CC-4h (19.73 Ω) and Pt (139.92 Ω) CEs, respectively.

中文翻译：

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形态学可控的时间依赖性CoS纳米薄膜作为量子点敏化太阳能电池的有效对电极

通过简便的化学浴法在不同的沉积时间下获得的硫化钴（CoS）团聚纳米颗粒薄膜。基于3小时沉积时间（CC-3h）的量子点敏化太阳能电池（QDSSCs）沉积的CoS对电极（CE）实现的能量转换效率（η）比CC-2h（1.83％），CC更高在1个日光照射下（100 mW cm ^-2，AM 1.5 G）-4h（2.52％）和Pt（1.48％）CEs 。电化学分析表明，CC-3h CE在CE /电解质界面处显示出比CC-2h（23.34Ω），CC-4h（19.73Ω）和Pt（139.92Ω）CE小的电荷转移电阻（9.22Ω），分别。