The effect of photoanode structure on the performances of   quantum-dot-sensitized solar cells: a case study of the anatase TiO2   nanocrystals and polydisperse mesoporous spheres hybrid photoanodes

doi:10.1039/c4ta02871f

CORC > 北京大学 > 化学与分子工程学院

	The effect of photoanode structure on the performances of quantum-dot-sensitized solar cells: a case study of the anatase TiO2 nanocrystals and polydisperse mesoporous spheres hybrid photoanodes
	Wu, Dapeng ; Shi, Xiaojuan ; Dong, Hui ; Zhu, Feng ; Jiang, Kai ; Xu, Dongsheng ; Ai, Xicheng ; Zhang, Jianping
刊名	journal of materials chemistry a
	2014
关键词	ENERGY-CONVERSION SEMICONDUCTOR NANOCRYSTALS EFFICIENCY ENHANCEMENT CDS/CDSE LAYER PBS NANOSPINDLES EXTINCTION DEPOSITION SIZES
DOI	10.1039/c4ta02871f
英文摘要	TiO2 polydisperse mesoporous spheres (PMSs) and nanocrystals were selectively prepared via slightly altering the precursor dosage in a solvothermal reaction. Afterwards, the submicrometer-sized PMSs and nanocrystals were adopted as sample materials to shed light on the effect of the photoanode structure over the performance of CdS/CdSe-cosensitized solar cells by comparing four types of photoanode structures: nanocrystal film, blend film, bilayer film and PMSs film. It was found that the bilayer photoanode could promote the harvesting of incident light by increasing both the CdS/CdSe QDs loading amount and the scattering effect. According to the transient photovoltage measurements, the carrier recombination at the TiO2/electrolyte and FTO/electrolyte interfaces were substantially passivated in the bilayer cell. Moreover, a high electron diffusion rate of 142.0 x 10(-9) m(2) s(-1) was also obtained in the bilayer cell, indicating high photoelectrons collection efficiency in the film structure. Therefore, the bilayer cell can well integrate the structural advantages of the PMSs and nanocrystals, which contributes to a high conversion efficiency of 4.70%, demonstrating a similar to 54% and similar to 12% improvement compared with the cells derived from nanocrystal and PMSs, respectively.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000342079200073&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Chemistry, Physical; Energy & Fuels; Materials Science, Multidisciplinary; SCI(E); EI; 12; ARTICLE; jiangkai6898@126.com; dsxu@pku.edu.cn; xcai@chem.ruc.edu.cn; 38; 16276-16284; 2
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/217320]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Wu, Dapeng,Shi, Xiaojuan,Dong, Hui,et al. The effect of photoanode structure on the performances of quantum-dot-sensitized solar cells: a case study of the anatase TiO2 nanocrystals and polydisperse mesoporous spheres hybrid photoanodes[J]. journal of materials chemistry a,2014.
APA	Wu, Dapeng.,Shi, Xiaojuan.,Dong, Hui.,Zhu, Feng.,Jiang, Kai.,...&Zhang, Jianping.(2014).The effect of photoanode structure on the performances of quantum-dot-sensitized solar cells: a case study of the anatase TiO2 nanocrystals and polydisperse mesoporous spheres hybrid photoanodes.journal of materials chemistry a.
MLA	Wu, Dapeng,et al."The effect of photoanode structure on the performances of quantum-dot-sensitized solar cells: a case study of the anatase TiO2 nanocrystals and polydisperse mesoporous spheres hybrid photoanodes".journal of materials chemistry a (2014).