染料敏化太阳能电池SnO_(2)光阳极研究进展  

Development on SnO_(2) Photoanodes for Dye-sensitized Solar Cells

作　　者：王东亭[1] 贾相晨 钟道鹏 WANG Dongting;JIA Xiangchen;ZHONG Daopeng(School of Chemistry and Chemical Engineering,Liaocheng University,Liaocheng 252059,Shandong,China)

机构地区：[1]聊城大学化学化工学院,山东聊城252000

出　　处：《硅酸盐学报》2024年第6期2148-2161,共14页Journal of The Chinese Ceramic Society

基　　金：聊城大学博士科研启动基金(31805);山东省自然科学基金项目(ZR2018LB032)。

摘　　要：染料敏化太阳能电池(DSSCs)由于其成本低、原材料丰富、光电转化效率高等优点,成为新能源开发利用领域研究的热点。光阳极是DSSC的重要组成部分,对提高DSSC的光电转化效率具有重要意义。基于此,首先介绍了SnO_(2)DSSC的工作原理,并分析了效率的影响因素,接着重点讨论了SnO_(2)光阳极的结构设计,在此基础上阐述了光阳极改进(表面包覆或复合、元素掺杂)的研究现状,最后总结规律并对未来的发展趋势和前景进行展望。In the increasing severe energy crisis,the use of solar energy to replace traditional fossil fuels becomes a consensus in worldwide due to the non-renewable nature of fossil fuels and the inability of new energy sources such as hydrogen,wind,and nuclear energy.Among the forms of solar energy utilization,dye-sensitized solar cells(DSSCs)are a research hotspot in energy development and utilization due to their low cost,abundant raw materials,high efficiency,and long service life.The photoanode is an important component of DSSCs and plays a significant role in improving the photoelectric conversion efficiency of DSSCs.In recent years,various materials and modification methods for dye-sensitized solar cells are applied to design the photoanodes for the improvement of their photoelectric conversion efficiency.Among various photoanode materials,SnO_(2) is an ideal candidate due to its higher electron mobility(i.e.,about 125 cm^(2)·V^(-1)·s^(-1))and larger bandgap width(i.e.,3.5 eV).However,SnO_(2)-based dye-sensitized cells still have two main challenges,i.e.,the lower open-circuit voltage(Voc)(Compared to TiO_(2),the conduction band edge of SnO_(2) shifts positively by up to 300 mV,resulting in a reduced difference between the conduction band potential and the redox potential of the electrolyte);and the lower current density(The isoelectric point of SnO_(2) is smaller,which reduces the binding force between SnO_(2) and acidic photosensitive dyes,leading to a decrease in dye adsorption and thus limiting the increase in current density from the source).This review represented recent research progress on tin SnO_(2) photoanodes in DSSCs,emphasizing the potential application of SnO_(2) in DSSCs and the challenges.This review introduced the structure and working principle of SnO_(2)-based DSSCs,and analyzed the key factors affecting the photoelectric conversion efficiency,including short-circuit current density(JSC),VOC,and fill factor(FF).This review discussed the factors influencing these parameters and focused on the

关 键 词：染料敏化太阳能电池 光阳极 二氧化锡 

分 类 号：TK514[动力工程及工程热物理—热能工程]