Abstract:A fundamental electrochemical study of Si ions electrodeposition and physical diffusion behavior in Na3AlF6-LiF melts and electrolysis using Al and Cu-Si liquid cathodes was conducted under 950℃. The results indicates that the depolarization of silicon deposition on liquid cathode and Reduction potential of Si is higher than solid electrodes. Besides, the concentration Si ions in melt have an extremely influence on electrodeposition process, co-deposition of Al and Si is possible when Si ions are insufficient in the molten salt. The change of open circuit voltage on liquid electrodes illustrate the diffusion rate of Si ions in Cu-Si alloy is quicker than it in Al melt. The basic physical data such as activity coefficient of Si in alloy under different concentration can be accessed by evaluate open circuit voltage, which build a bridge between electrochemical study result and physical properties of materials. Galvanostatic electrolysis showed that liquid cathodes are appropriate to collect the deposited solid silicon and the highest collection efficiency is almost 85%.

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	1. Electrodeposition of Silicon from Molten Salts on Liquid Metal Electrodes
	Yiwei Tang,Ming Jia,Yun Cheng,Zhongliang Tian,Yanqing Lai,Yexiang Liu
	Energy Science and Technology 12 May 2016
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	Abstract:A fundamental electrochemical study of Si ions electrodeposition and physical diffusion behavior in Na3AlF6-LiF melts and electrolysis using Al and Cu-Si liquid cathodes was conducted under 950℃. The results indicates that the depolarization of silicon deposition on liquid cathode and Reduction potential of Si is higher than solid electrodes. Besides, the concentration Si ions in melt have an extremely influence on electrodeposition process, co-deposition of Al and Si is possible when Si ions are insufficient in the molten salt. The change of open circuit voltage on liquid electrodes illustrate the diffusion rate of Si ions in Cu-Si alloy is quicker than it in Al melt. The basic physical data such as activity coefficient of Si in alloy under different concentration can be accessed by evaluate open circuit voltage, which build a bridge between electrochemical study result and physical properties of materials. Galvanostatic electrolysis showed that liquid cathodes are appropriate to collect the deposited solid silicon and the highest collection efficiency is almost 85%.
	TO cite this article:Yiwei Tang,Ming Jia,Yun Cheng, et al. Electrodeposition of Silicon from Molten Salts on Liquid Metal Electrodes[OL].[12 May 2016] http://en.paper.edu.cn/en_releasepaper/content/4689882


	2. Smoothing effect of the aggregated photovoltaics power output using mesoscale data: A comparative analysis in the Mediterranean and China
	YANG Peijin,GAO Zhiqiu,George Caralis
	Energy Science and Technology 04 March 2015
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	Abstract:A mesoscale atmospheric model is applied in the Mediterranean and China in order to analyse and understand the smoothing effect of the aggregated photovoltaics power output. Systematic application of a Mesoscale Weather Prediction Model for one year, in Mediterranean and China, provides simultaneous information of solar radiation in selected points. The hourly time-series data of solar radiation and the estimated energy output of photovoltaics are analysed to show the temporal and spatial variability of solar energy in different time and space scales. Distributed solar generation is today the most common type of decentralized energy production. The results of the current analysis could be useful for power system operators to improve the design and operational strategy of power system with large photovoltaics integration. The parallel analysis in China and Mediterranean and comparisons between sub-regions, show that there is a positive impact thanks to the integration of photovoltaics in wider geographical areas and this information should be definitely taken into consideration from system operators and policy makers towards large scale photovoltaics integration into a large power system.
	TO cite this article:YANG Peijin,GAO Zhiqiu,George Caralis. Smoothing effect of the aggregated photovoltaics power output using mesoscale data: A comparative analysis in the Mediterranean and China[OL].[ 4 March 2015] http://en.paper.edu.cn/en_releasepaper/content/4633117

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	3. Thin-film encapsulation of indium-tin-oxide-free polymer solar cells by atomic layer deposition with an improvement on stability and efficiency
	LI Kan,FAN Huanhuan,LI Haifeng,ZHEN Hongyu
	Energy Science and Technology 30 December 2013
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	Abstract:Atomic layer deposition (ALD) technology is induced to encapsulate inverted indium-tin-oxide (ITO)-free polymer solar cells (IFSCs) with a structure of Al/TiOx /P3HT:PC61BM /PH1000. Al2O3 served as encapsulation layer is deposited by ALD on the light incident surface (PH1000 anode). The thickness of Al2O3 layer thus can be optimized through optical simulation to minimize light loss on IFSCs. With Al2O3 of 30 nm and active layer of 85 nm obtained from optical calculation, the ALD encapsulated IFSCs show much better device performance and higher stability than the glass-encapsulated IFSCs with active layer of 80 nm.
	TO cite this article:LI Kan,FAN Huanhuan,LI Haifeng, et al. Thin-film encapsulation of indium-tin-oxide-free polymer solar cells by atomic layer deposition with an improvement on stability and efficiency[OL].[30 December 2013] http://en.paper.edu.cn/en_releasepaper/content/4578240


	4. A triphenylamine-based four-armed molecule for solution-processed organic solar cells with high photo-voltage
	HOU Qiong,Yiquan Chen,hongyu Zhen
	Energy Science and Technology 26 December 2013
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	Abstract:A new four-armed molecule Th4(DTPAB) with triphenylamine-benzothiadiazole-triphenylamine unit as core, 4-hexylthiophene as arms was synthesized. Solution-processed organic solar cells based on blends of Th4(DTPAB) and 10 PC71BM demonstrate a power conversion efficiency of 3.18% with a big open circuit voltage of 0.96 V.
	TO cite this article:HOU Qiong,Yiquan Chen,hongyu Zhen. A triphenylamine-based four-armed molecule for solution-processed organic solar cells with high photo-voltage[OL].[26 December 2013] http://en.paper.edu.cn/en_releasepaper/content/4578162


	5. Au@SiO2 core/shell nanoparticles decorated TiO2 nanorod arrays for enhanced photoelectrochemical water splitting
	SHEN Shaohua,CHEN Jianan
	Energy Science and Technology 27 July 2013
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	Abstract:To improve the separation efficiency of photo-induced charge carries, Au@SiO2 nanoparticles with core-shell structure were loaded onto the surface of TiO2 nanorods grown on FTO substrate by a facile two-step process. The resulted Au@SiO2/TiO2 photoanodes were characterized by X-ray diffraction (XRD), Scanning electron microscopy (SEM), Transmission electron microscopy (TEM) as well as photoelectrochemical measurements. When compared to pristine TiO2 nanorod film, the Au@SiO2/TiO2 films showed remarkable enhancement in photoelectrochemical water splitting, with incident photon to current conversion efficiency (IPCE) increased from 31% to 37% at 380 nm and 0.8 V vs. SCE. This could be interpreted by the effect of metallic surface plasmon resonance of Au@SiO2 nanoparticles, which would generate an intense electromagnetic field with spatially non-homogenous distributed intensity. As a result, the charge carriers generated in the near surface region of TiO2 nanorods could be easily separated. This modification method based on the effect of metallic surface plasmon resonance for promoted charge carrier separation provides a promising way to develop semiconductor photoelectrodes with high solar water splitting performance.
	TO cite this article:SHEN Shaohua,CHEN Jianan. Au@SiO2 core/shell nanoparticles decorated TiO2 nanorod arrays for enhanced photoelectrochemical water splitting[OL].[27 July 2013] http://en.paper.edu.cn/en_releasepaper/content/4553403


	6. Evaluation on Temperature-Dependence Properties of Low-Concentrating Photovoltaic module
	LIU Jingjing,ZHANG Yun Hui,YANG Fan
	Energy Science and Technology 25 December 2012
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	Abstract:A special monocrystalline silicon solar cell provided by CSUN was studied through an indoor experimental platform based on a DLSK-SOL3 solar-simulator and module measurement system. The illumination density of light was modulated to simulate a low concentration condition (0.2sun?10sun) by varying the working voltage of the Xenon lamp and the distance between the test module and the Xenon lamp. The temperature of solar module is at the range of RT to 50℃。The temperature-dependence properties were obtained.
	TO cite this article:LIU Jingjing,ZHANG Yun Hui,YANG Fan. Evaluation on Temperature-Dependence Properties of Low-Concentrating Photovoltaic module[OL].[25 December 2012] http://en.paper.edu.cn/en_releasepaper/content/4509004


	7. Investigation of boron-oxygen complex in p-type compensated Czochralski silicon
	WU Yichao,YU Xuegong,YANG Deren
	Energy Science and Technology 13 December 2012
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	Abstract:The boron-oxygen (B-O) complexes responsible for light induced degradation (LID) in p-type compensated Czochralski (CZ) silicon have been investigated on the basis of a bi-exponential function fitting in this paper. It is found that the activation energy for the slow generation process of B-O defect in the dopant-compensated CZ silicon is 0.43 eV, close to that of the non-compensated CZ silicon. It suggests that the B-O defects in the p-type conventional and compensated CZ silicon have the same configuration. The corresponding pre-exponential factor of B-O defect generation in the compensated sample is one order of magnitude higher than that in the conventional silicon. This could be explained by P atoms existing in the neighborhood of B atoms and therefore influencing its capture for oxygen dimer. These results are significant for us to understand the behaviors of B-O defects in the compensated CZ Silicon.
	TO cite this article:WU Yichao,YU Xuegong,YANG Deren. Investigation of boron-oxygen complex in p-type compensated Czochralski silicon[OL].[13 December 2012] http://en.paper.edu.cn/en_releasepaper/content/4501420


	8. Gallium doped Czochralski silicon with phosphorus compensation for photovoltaic application
	CHEN Peng,YU Xuegong,Yang Deren
	Energy Science and Technology 13 December 2012
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	Abstract:In this paper, we compare the properties of the gallium-doped Czochralski (Ga-Cz) silicon and the gallium-phosphorus co-doped Czochralski (GP-Cz) silicon. It shows that both majority and minority carrier mobility in Cz silicon are reduced due to the Ga and P compensation. However, the reduction of carrier mobility is not as severe as expected by Klaassen's model. The infrared absorption spectra for GP-Cz samples show that the Ga- and P-related bands significantly get broadened. It is suggested that a portion of P atoms are trapped by Ga atoms to form the Ga-P pairs, resulting in the reduction of carrier scattering centers. The solar cells based on GP-Cz silicon have comparable efficiencies with the Ga-Cz silicon solar cells, implying that the Ga and P compensation is not critical for its photovoltaic application.
	TO cite this article:CHEN Peng,YU Xuegong,Yang Deren. Gallium doped Czochralski silicon with phosphorus compensation for photovoltaic application[OL].[13 December 2012] http://en.paper.edu.cn/en_releasepaper/content/4501417


	9. Cu2ZnSnSe4 Thin Films Prepared by Selenization of One-step Electrochemically Deposited Cu-Zn-Sn-Se Precursors
	Meng Mingming,Wan Lei,Zou Peng,Miao Shiding,Xu Jinzhang
	Energy Science and Technology 09 October 2012
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	Abstract:A non-vacuum strategy was reported in facile preparation of kesterite-type Cu2ZnSnSe4 (CZTSe) thin films via selenization of one-step electrochemically prepared Cu-Zn-Sn-Se precursors. The Cu-Zn-Sn-Se precursor films were prepared by electrochemical deposition from electrolytes containing CuSO4, ZnSO4, SnCl4 and H2SeO3, and the substrate is a Mo coated soda-lime glass. The CZTSe thin films were obtained by annealing the electrochemically deposited films in the selenium vapors at the temperature of 550 C. The crystal phases, micro-structures, chemical compositions and optical properties of CZTSe films have been studied by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), inductively coupled plasma optical emission spectrometer (ICP-OES), Raman scattering spectrum, and UV-Vis absorption spectroscopic means. The results revealed that the electrolytes with Cu:Zn:Sn:Se molar ratio of 3:70:20:3 yields nearly pure phase of kesterite, and a band gap of 0.94eV was determined by spectroscopic measurements.
	TO cite this article:Meng Mingming,Wan Lei,Zou Peng, et al. Cu2ZnSnSe4 Thin Films Prepared by Selenization of One-step Electrochemically Deposited Cu-Zn-Sn-Se Precursors[OL].[ 9 October 2012] http://en.paper.edu.cn/en_releasepaper/content/4491026


	10. Preparation of a Novel TiO2 Array-Cluster Film for Dye-sensitized Solar Cells by Hydrothermal Reaction
	QIN Haiyang,ZHUANG Jia
	Energy Science and Technology 13 April 2012
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	Abstract:In this work, one type of novel and thick TiO2 array-cluster film was prepared with hydrothermal method which was low cost and simple. It was found that this type of TiO2 film grew on the FTO substrate was a structure of two-layer and had the tetragonal rutile phase from the FESEM images and the XRD patterns. However, the subjacent layer of the two layers was TiO2 array, while the supernatant layer was TiO2 clusters, and both of them were formed from TiO2 rods which developed from finer TiO2 nanorods. The thickness of this type of TiO2 film could reach to 22.9μm, and without any modification treatment, a light-to-electricity conversion efficiency of 1.24% was achieved by using 22.9μm-thick TiO2 array-cluster film which was prepared under the 0.06mol/L-dosage of tetrabutyl titanate (TBOT), at 140℃ for 72h and the FTO substrates placed at 180-degree angle as the photoanode in a DSSC.
	TO cite this article:QIN Haiyang,ZHUANG Jia. Preparation of a Novel TiO2 Array-Cluster Film for Dye-sensitized Solar Cells by Hydrothermal Reaction[OL].[13 April 2012] http://en.paper.edu.cn/en_releasepaper/content/4474443

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