title: The influence of annealing temperature on the interface and photovoltaic properties of CdS/CdSe quantum dots sensitized ZnO nanorods solar cells.
abstract: Arrays of ZnO/CdS/CdSe core/shell nanocables with different annealing temperatures have been investigated for CdS/CdSe quantum dots sensitized solar cells (QDSSCs). CdS/CdSe quantum dots were synthesized on the surface of ZnO nanorods that serve as the scaffold via a simple ion-exchange approach. The uniform microstructure was verified by scanning electron microscope and transmission electron microscope. UV-Visible absorption spectrum and Raman spectroscopy analysis indicated noticeable influence of annealing temperature on the interface structural and optical properties of the CdS/CdSe layers. Particularly, the relationship between annealing temperatures and photovoltaic performance of the corresponding QDSSCs was investigated employing photovoltaic conversion, quantum efficiency and electrochemical impedance spectra. It is demonstrated that higher cell efficiency can be obtained by optimizing the annealing temperature through extending the photoresponse range and improving QD layer crystal quality.
authors.affiliation: Key Lab of Inorganic Functional Material in Universities of Shandong, School of Material Science and Engineering, University of Jinan, Jinan 250022, China.
authors.forename: Xiaofeng
authors.initials: X
authors.lastname: Qiu
authors.affiliation: Key Lab of Inorganic Functional Material in Universities of Shandong, School of Material Science and Engineering, University of Jinan, Jinan 250022, China.
authors.forename: Ling
authors.initials: L
authors.lastname: Chen
authors.affiliation: Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, 14109 Berlin, Germany.
authors.forename: Haibo
authors.initials: H
authors.lastname: Gong
authors.affiliation: Key Lab of Inorganic Functional Material in Universities of Shandong, School of Material Science and Engineering, University of Jinan, Jinan 250022, China.
authors.forename: Min
authors.initials: M
authors.lastname: Zhu
authors.affiliation: Key Lab of Inorganic Functional Material in Universities of Shandong, School of Material Science and Engineering, University of Jinan, Jinan 250022, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Han
authors.affiliation: Key Lab of Inorganic Functional Material in Universities of Shandong, School of Material Science and Engineering, University of Jinan, Jinan 250022, China.
authors.forename: Min
authors.initials: M
authors.lastname: Zi
authors.affiliation: Key Lab of Inorganic Functional Material in Universities of Shandong, School of Material Science and Engineering, University of Jinan, Jinan 250022, China.
authors.forename: Xiaopeng
authors.initials: X
authors.lastname: Yang
authors.affiliation: Department of Physics, Qilu Normal University, Jinan 250200, China; Key Lab of Inorganic Functional Material in Universities of Shandong, School of Material Science and Engineering, University of Jinan, Jinan 250022, China.
authors.forename: Changjian
authors.initials: C
authors.lastname: Ji
authors.affiliation: Key Lab of Inorganic Functional Material in Universities of Shandong, School of Material Science and Engineering, University of Jinan, Jinan 250022, China. Electronic address: mse_caobq@ujn.edu.cn.
authors.forename: Bingqiang
authors.initials: B
authors.lastname: Cao
keywords: Annealing; Core–shell; Interface alloy; Nanowire; Raman; Solar cell