Synthesis of multilayered TiO2 &quot;donuts&quot; for improved quantum-dot   sensitized solar cells

doi:10.1016/j.solmat.2014.10.047

CORC > 北京大学 > 化学与分子工程学院

	Synthesis of multilayered TiO2 "donuts" for improved quantum-dot sensitized solar cells
	Dong, Hui ; Wu, Dapeng ; Zhu, Feng ; Wang, Feifan ; Zhu, Shengfa ; Li, Qi ; Xu, Dongsheng
刊名	solar energy materials and solar cells
	2015
关键词	TiO2 Hierarchical structure QDSSCs ANATASE TIO2 LARGE PERCENTAGE CDS/CDSE SPHERES FACETS MICROSPHERES PHOTOANODES STORAGE
DOI	10.1016/j.solmat.2014.10.047
英文摘要	In this paper, a simple method was developed to prepare the submicron-sized multilayered TiO2 "donuts" (MLTDs), which were constructed by orderly-arranged nanosheets with thickness of similar to 9 nm. Based on the investigation of the time-dependent and other control experiments, a nucleation-assembling-growth mechanism was proposed to describe the formation of the MLTD structure. Then, the MLTDs were introduced into the quantum-dot (CdS/CdSe) sensitized solar cells (QDSSCs) as the photoanode materials. For comparison, QDSSCs based on the randomly assembled nanosheets-based microspheres (RATSs) and commercial P25 nanoparticles were also assembled. Maximum incident photon to charge carrier efficiency (IPCE) value of 57% was observed for CdS/CdSe co-sensitized MLTDs architectures, which was higher than those of RATSs and P25 (50% and 54%, respectively). The enhanced IPCE observed in the MLTDs architectures was mainly attributed to the increased absorption of light. Moreover, the large pore size distribution of MLTDs might be beneficial for electrolyte penetration. Based on these advantages, MLTDs-based QDSSCs demonstrated the highest conversation efficiency of 4.5% in all the three types of QDSSCs. (C) 2014 Published by Elsevier B.V.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000348015100029&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied; SCI(E); EI; 1; ARTICLE; liqi2010@pku.edu.cn; dsxu@pku.edu.cn; 201-207; 133
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/150312]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Dong, Hui,Wu, Dapeng,Zhu, Feng,et al. Synthesis of multilayered TiO2 "donuts" for improved quantum-dot sensitized solar cells[J]. solar energy materials and solar cells,2015.
APA	Dong, Hui.,Wu, Dapeng.,Zhu, Feng.,Wang, Feifan.,Zhu, Shengfa.,...&Xu, Dongsheng.(2015).Synthesis of multilayered TiO2 "donuts" for improved quantum-dot sensitized solar cells.solar energy materials and solar cells.
MLA	Dong, Hui,et al."Synthesis of multilayered TiO2 "donuts" for improved quantum-dot sensitized solar cells".solar energy materials and solar cells (2015).