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	1. 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


	2. 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

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	3. Local Composition Model for the Phase Equilibrium, Phase Densities and Surface Tensions of Hydrocarbon-Hydrocarbon and Hydrocarbon-CO2 Mixtures
	ZHU Junyue,DUAN Yuanyuan,YANG Zhen
	Energy Science and Technology 21 October 2013
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	Abstract:Phase equilibrium, phase densities and surface tensions of hydrcaorbon-hydrocarbon (HC-HC) and hydrocarbon-CO2 (HC-CO2) vapor-liquid system have great importance in separation, purification and dissolution processes. In this work, a local composition model was introduced into the volume translated Peng-Robinson(VTPR) equation of state(EOS) to calculate the phase equilibrium and phase densities. And then the local composition combined with VTPR EOS was used to predict the surface tensions based on the gradient theory. The results show that the introduction of the local composition model can achieve accurate calculation of phase equilibrium, phase densities and surface tensions for binary HC-HC and HC-CO2 mixtures.
	TO cite this article:ZHU Junyue,DUAN Yuanyuan,YANG Zhen. Local Composition Model for the Phase Equilibrium, Phase Densities and Surface Tensions of Hydrocarbon-Hydrocarbon and Hydrocarbon-CO2 Mixtures[OL].[21 October 2013] http://en.paper.edu.cn/en_releasepaper/content/4565233


	4. 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


	5. A study for low-cost small power wind turbine systems
	DAI Ping,SHI Weifeng,CHEN Jieshi
	Energy Science and Technology 26 February 2013
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	Abstract:This paper presents a new control algorithm for low-cost small power wind turbine systems with topology which consists of wind turbine, directly coupled permanent synchronous generator, rectifier, boost circuit and resistive load. The system structure and characteristics are studied and analyzed in the paper. The control strategy for generator side converter is based on extracting the maximum mechanical power from the wind turbine and sliding mode control for boost circuits. Simulation results validate and confirm the effectiveness of the proposed control algorithm.
	TO cite this article:DAI Ping,SHI Weifeng,CHEN Jieshi. A study for low-cost small power wind turbine systems[OL].[26 February 2013] http://en.paper.edu.cn/en_releasepaper/content/4521564


	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. Property improvement of bio-oil by ultra-high pressure processing
	HE Ronghai,YE Xiaofei,MA Haile
	Energy Science and Technology 27 November 2012
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	Abstract:Bio-oils produced from fast pyrolysis need to be upgraded before application as fuel due to their poor physicochemical properties. In this submission, we probed the potential of continuous ultra-high pressure processing (high pressure homogenization (HPH)) technique in improving physicochemical properties of switchgrass bio-oil. The homogenization pressures for different bio-oil samples were 100, 150, 200, 250, and 300MPa, respectively. The results showed that viscosity of switchgrass bio-oil decreased remarkably to 70% of the original value after homogenization treatment at pressure of 100MPa, and it didn't significantly change when homogenization pressure continued to increase; solid content significantly decreased, and water content, heating value, density, pH value, and ash content of switchgrass bio-oil did not change after HPH. The average molecular weight of switchgrass bio-oil was proved to appreciably decrease after homogenization. And the oil's chemical composition changed. HPH processing remarkably improved switchgrass bio-oil stability. Economic calculation demonstrated the operation cost was only 1.07 US cents/L for bio-oil HPH processing at 100MPa.
	TO cite this article:HE Ronghai,YE Xiaofei,MA Haile. Property improvement of bio-oil by ultra-high pressure processing[OL].[27 November 2012] http://en.paper.edu.cn/en_releasepaper/content/4498184


	10. Fast Analysis of Bio-oil Properties by Fourier Transform Infrared Spectroscopy
	HE Ronghai,YE Xiaofei,LIU Lu
	Energy Science and Technology 27 November 2012
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	Abstract:Over 400 organic compounds exist in bio-oil, and the analysis of bio-oil physicochemical properties is tedious, time-consuming, and expensive. This study investigated the feasibility of using Fourier Transform Infrared Attenuated Total Reflection (FTIR-ATR) in rapid analysis of bio-oil by using pre-processing technique and principal component analysis (PCA) method to obtain multiple physical and chemical properties of bio-oil. Switchgrass bio-oil samples produced under nine different pyrolysis conditions were used. Pearson correlation analysis shows strong relationship between chemical compounds and between some physical properties. PCA method can well separate bio-oil samples based on their physicochemical properties. Second derivative spectra pretreatment can remarkably eliminate physical effects of bio-oil FTIR spectra, and PCA score plot shows the discrimination in different bio-oil samples. Such a rapid analysis would lead to better quality control in bio-oil production and allow insight for bio-oil upgrading.
	TO cite this article:HE Ronghai,YE Xiaofei,LIU Lu. Fast Analysis of Bio-oil Properties by Fourier Transform Infrared Spectroscopy[OL].[27 November 2012] http://en.paper.edu.cn/en_releasepaper/content/4498187

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