分别以纳米氧化镍和镍盐为原料,合成硫化镍（NiS）纳米材料,将其掺入聚（3,4-乙烯二氧噻吩）-聚苯乙烯磺酸盐（PEDOT-PSS）溶液中,作为对电极材料制备DSCs。研究不同对电极材料的染料敏化太阳电池的光电性能。结果表明,2种合成方法制备的电极材料,都可有效提升器件性能,其中水热法合成NiS制作的NiS/PEDOT-PSS复合材料作为对电极的器件效率接近采用Pt对电极器件。器件性能的提升主要源于NiS纳米材料的掺入使PEDOT-PSS对电极的表面粗糙度增加及电化学活性提升。NiS/PEDOT-PSS复合对电极具有制备简单、成本低及高效的优势,是一种极具潜力的复合对电极材料。
Abstract
Development of novel non-platinum counter electrode is very important for developing low cost Dye-sensitized solar cells （DSCs）. Nickel sulfide（NiS） nanomaterials were synthesized from nano nickel oxide （NiO） and nickel salt, respectively. The NiS nanomaterials were mixed with poly（3,4-ethylenedioxythiophene）-poly（styrenesulfonate）,（PEDOT-PSS）, which were prepared as counter electrodes for DSCs. The photoelectric properties of DSCs with different counter electrode materials were studied. The results show that the performance of DSCs with PEDOT-PSS as counter electrode materials can be effectively improved by doped with NiS material prepared by these two methods. The performance of DSCs with NiS/ PEDOT-PSS composite in which NiS material is made by hydrothermal method is similar to Pt counter electrode device. The improvement of device performance is mainly due to the incorporation of NiS nanomaterial which improve the surface roughness and electrochemical activity of PEDOT-PSS film. The NiS/PEDOT-PSS composite electrode is a promising composite electrode material with the advantages of simple preparation, low cost and high efficiency.
关键词
染料敏化太阳电池 /
聚合物薄膜 /
纳米材料 /
硫化镍
Key words
dye-sensitized solar cells /
polymer films /
nanomaterials /
NiS
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基金
天津市科技计划项目技术创新引导专项优秀科技特派员项目（19JCTPJC42600）; 2018年校级科技培育重点项目（zdkt2018-002）
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