By a News Reporter-Staff News Editor at Energy Weekly News -- Researchers detail new data in Fullerenes. According to news reporting originating in Wuhan, People's Republic of China, by VerticalNews journalists, research stated, "In this paper, low-cost counter electrodes (CEs) based on water-soluble multiwall carbon nanotube (MWCNT) and Cu2ZnSnSe4 nanoparticle (CZTSe NP) composites have been successfully introduced into a quantum dot-sensitized solar cell (QDSC) system. Suitable surface modification allows the MWCNTs and CZTSe NPs to be homogeneously dispersed in water, facilitating the subsequent low-temperature spray deposition of high quality composite films with different composite ratios."
The news reporters obtained a quote from the research from the Huazhong University of Science and Technology, "The electrochemical catalytic activity of the composite CEs has been critically compared by electrochemical impedance spectroscopy and Tafel-polarization analysis. It is found that the composite CE at the MWCNT : CZTSe ratio of 0.1 offers the best performance, leading to an optimal solar cell efficiency of 4.60%, which is 50.8% higher than that of the Pt reference CE."
According to the news reporters, the research concluded: "The as-demonstrated higher catalytic activity of the composite CEs compared to their single components could be ascribed to the combination of the fast electron transport of the MWCNTs and the high catalytic activity of CZTSe NPs."
For more information on this research see: Spray deposition of water-soluble multiwall carbon nanotube and Cu2ZnSnSe4 nanoparticle composites as highly efficient counter electrodes in a quantum dot-sensitized solar cell system. Nanoscale, 2013;5(15):6992-8. (Royal Society of Chemistry - www.rsc.org/; Nanoscale - pubs.rsc.org/en/journals/journalissues/nr)
Our news correspondents report that additional information may be obtained by contacting X. Zeng, Michael Gratzel Centre for Mesoscopic Solar Cells, Wuhan National Laboratory for Optoelectronics and College of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Taiwan. Additional authors for this research include D. Xiong, W. Zhang, L. Ming, Z. Xu, Z. Huang, M. Wang, W. Chen and Y.B Cheng.
Keywords for this news article include: Asia, Wuhan, Energy, Chemistry, Fullerenes, Solar Cell, Quantum Dots, Nanotechnology, Electrochemical, Emerging Technologies, People's Republic of China, Multiwalled Carbon Nanotube.
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