摘要
利用水热法合成核壳结构Au@SiO_(2)@CeO_(2)纳米微球,制备了一系列双层结构复合光阳极并应用于染料敏化太阳能电池(DSSC)。研究表明:当CeO_(2)纳米微球和核壳结构Au@SiO_(2)@CeO_(2)纳米微球应用于DSSC光阳极散射层时,电池的光电转化效率有了显著提高。相对于纯TiO_(2)(P25)光阳极,P25/CeO_(2)纳米球光阳极电池的DSSC光电性能提高了15.3%,P25/Au@SiO_(2)@CeO_(2)纳米球光阳极电池的光电性能提高了27.9%。DSSC光电性能的提高主要归因于2个方面:一方面,Au纳米粒子的表面等离子体共振效应有效提高了光阳极薄膜的光散射效应。另一方面,CeO_(2)具有较高的染料负载能力,核壳球形结构具有较高的比表面积,增强了光的散射效应,提高了电子传输能力。
Different composite photoanodes with double-layer structure applied to dye-sensitized solar cell(DSSC)can be prepared by core-shell structure Au@SiO_(2)@CeO_(2)nanospheres synthesized by hydrothermal method.The results showed that the photoelectric conversion efficiency of the solar cells could be significantly improved when CeO_(2)nanospheres and Au@SiO_(2)@CeO_(2)nanospheres coating were applied to the photoanode scattering layer of DSSC.Compared with the pure TiO_(2)(P25)photoanode,the photoelectric property of P25/CeO_(2)nanosphere photoanode cells increased by 15.3%,and that of P25/Au@SiO_(2)@CeO_(2)nanosphere photoanode cells increased by 27.9%.Why the photoelectric property of DSSC can be enhanced is mainly attributed to the following two dimensions.On the one hand,the light scattering effect of the photoanode film is effectively heightened by the localized plasmon resonance of the Au nanoparticles.On the other hand,the light scattering effect and the electron transmission capacity are enhanced since the CeO_(2)has the high load capacity in the dye,the core-shell structure with a high specific surface area.
作者
王敏
杨蒙瑶
陈思羽
浦迎秋
WANG Min;YANG Meng-Yao;CHEN Si-Yu;PU Ying-Qiu(Guangling College,Yangzhou University,Yangzhou,Jiangsu 225000,China)
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2023年第5期883-890,共8页
Chinese Journal of Inorganic Chemistry
基金
扬州大学广陵学院自然科学研究项目(No.ZKYB22003)
扬州大学广陵学院教学改革研究项目(No.JGYB21003)
2022年度江苏省大学生创新创业训练计划项目(No.202213987014Y)
2022年度江苏省高校哲学社会科学研究一般项目(No.2022SJYB2140)资助。
