Self-Assembly Synthesis of the MoS2/PtCo Alloy Counter Electrodes for High-Efficiency and Stable Low-Cost Dye-Sensitized Solar Cells.
Zhi ZengDongbo WangJinzhong WangShujie JiaoYuewu HuangSixiang ZhaoBingke ZhangMengyu MaShiyong GaoXingguo FengLiancheng ZhaoPublished in: Nanomaterials (Basel, Switzerland) (2020)
In this work, MoS2 microspheres/PtCo-alloy nanoparticles (MoS2/PtCo-alloy NPs) were composited via a novel and facile process which MoS2 is functionalized by poly (N-vinyl-2-pyrrolidone) (PVP) and self-assembled with PtCo-alloy NPs. This new composite shows excellent electrocatalytic activity and great potential for dye-sensitized solar cells (DSSCs) as a counter electrode (CE) material. Benefiting from heterostructure and synergistic effects, the MoS2/PtCo-alloy NPs exhibit high electrocatalytic activity, low charge-transfer resistance and stability in the cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) test. Meanwhile, a high power-conversion efficiency (PCE) of 8.46% is achieved in DSSCs with MoS2/PtCo-alloy NP CEs, which are comparable to traditional Pt CEs (8.45%). This novel composite provides a new high-performance, stable and cheap choice for CEs in DSSCs.
Keyphrases
- reduced graphene oxide
- quantum dots
- solar cells
- gold nanoparticles
- visible light
- highly efficient
- room temperature
- high efficiency
- low cost
- transition metal
- energy transfer
- metal organic framework
- single molecule
- drug delivery
- solid state
- ionic liquid
- oxide nanoparticles
- risk assessment
- simultaneous determination
- human health
- walled carbon nanotubes
- liquid chromatography