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Novel Hybrid Ligands for Passivating Pb S Colloidal Quantum Dots to Enhance the Performance of Solar Cells

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Nano-Micro Letters 2015年第4期7卷 325-331页

作者： Yuehua Yang Baofeng Zhao Yuping Gao Han Liu Yiyao Tian Donghuan Qin hongbin wu Wenbo Huang Lintao Hou State Key Laboratory of Luminescent Materials & Devices Institute of Polymer Optoelectronic Materials & DevicesSouth China University of Technology Siyuan Laboratory Department of Physics Jinan University

We developed novel hybrid ligands to passivate Pb S colloidal quantum dots(CQDs),and two kinds of solar cells based on as-synthesized CQDs were fabricated to verify the passivation effects of the *** was found that the ligands strongly affected the optical and electrical properties of CQDs,and the performances of solar cells were enhanced *** optimized hybrid ligands,oleic amine/octyl-phosphine acid/Cd Cl2improved power conversion efficiency(PCE)to much higher of 3.72%for Schottky diode cell and 5.04%for p–n junction *** results may be beneficial to design passivation strategy for low-cost and high-performance CQDs solar cells.

关键词： PbS Colloidal quantum dot Solar cells Ligands

Highly efficient pure white polymer light-emitting devices based on poly(N-vinylcarbazole) doped with blue and red phosphorescent dyes

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Science China Chemistry 2011年第4期54卷 671-677页

作者： HU SuJun ZOU JianHua ZHOU GuiJiang LI DongYun wu hongbin SU ShiJian WONG Wai-Yeung YANG Wei PENG JunBiao CAO Yong 1Key Laboratory of Specially Functional Materials Ministry of Education Institute of Polymer Optoelectronic Materials and Devices South China University of TechnologyGuangzhou 510640China Department of Chemistry and Centre for Advanced Luminescence Materials Hong Kong Baptist UniversityWaterloo RoadKowloon TongHong KongChina Ministry of Education Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter and Department of Chemistry Faculty of ScienceXi'an Jiaotong UniversityXi'an 710049China

Efficient white-polymer-light-emitting devices (WPLEDs) have been fabricated with a single emitting layer containing a hole-transporting host polymer,poly(N-vinylcarbzole),and an electron-transporting auxiliary,1,3-bis[(4-tert-butylphenyl)-1,3,4-oxadiazolyl]-phenylene,codoped with two phosphorescent dyes:Iridium(III)bis (2-(4,6-difluorophenyl)-pyridinato-N,C2') picolinate (FIrpic) and home-made Ir-G2 for blue and red emission,*** the structure of ITO/PEDOT:PSS 4083(40 nm)/emission layer(80 nm)/Ba(4 nm)/Al(120 nm),the device showed a maximal luminous efficiency (LE) of 13.5 cd A-1(corresponding to an external quantum efficiency (EQE) of 6.8%),and a peak power efficiency (PE) of 6.5 lm W-1 at 6.0 ***,the device exhibited pure white emission with Commission Internationale de l'Eclairage (CIE) coordinates of (0.34,0.35) at a current density of 12 mA cm-2,which is very close to the equi-energy white point with CIE coordinates of (0.33,0.33).The device performance can be further optimized when more balanced hole/electron injection is achieved by incorporating a lower conducting type anode buffer layer (PEDOT:PSS) and incorporating poly[(9,9-bis(3'-(N,N-dimethylamino)propyl)-2,7-fluorenene)-alt-2,7-(9,9-dioctyfluorene)] (PFN) as an electron injection layer at the *** optimized device showed an LE of 24.6 cd A-1 (with an EQE of 14.1%),while the peak power efficiency reached 12.66 lm ***,the WPLEDs showed good electroluminescence (EL) stability over a wide range of operating current density and luminance.

关键词： white polymer light-emitting device phosphorescent iridium complex anode buffer layer water-/alcohol-soluble conjugated polymer

Effect of Extrusion Temperature on Free Gossypol and Nutritional Components of Cottonseed Meal

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Animal Husbandry and Feed Science 2016年第2期8卷 94-97页

作者： Zhang Qiang wu hongbin Jin Xinwen Institute of Ago-Products Processing Science and Technology Xinjiang Academy of Agricultural and Reclamation Science Shihezi 832000 China Key Laboratory of Agro-products Processing Science and Technology Xinjiang Academy of Agrlcultural and Reclamation Science Shihezi 832000 China

[ Objective] The paper aimed to study effects of extrusion temperature on free gossypol and nutritional components of cottonseed meal. [ Method ] Dif- ferent extrusion temperatures （90, 100, 110, 120 and 130℃ ） were designed, and contents of free gossypol and nutritional components in cottonseed meal were de- termined. [ Result] The optimal temperature for extrusion of cottonseed meal was 120℃, the degradation rate of free gossypol no longer increased with the increas- ing temperature when the temperature exceeded 120℃. The nitrogen solvable index （NSI） in cottonseed meal reduced quickly with the increase of extrusion temper- ature, and the contents of crude fiber, available lysine and total lysine in cottonseed meal decreased significantly, but the contents of total amino acids and essential amino acid reached maximums at the extrusion temperature of 120℃. The content of branched-chain amino acids also reached a maximum at 120℃. [ Conclusion] The extrusion temperature of 120℃ was preferred for lowering free gossypol significantly when maintaining higher nutritional value of cottonseed meal. The paper provided a certain technical basis for extrusion processing of cottonseed meal.

关键词： Cottonseed meal Extrusion temperature Free gossypol Nutritional components

Optimization of Cottonseed Meal De-gossypol Process by Extrusion via Genetic Algorithm Based on Artificial Neural Network

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Animal Husbandry and Feed Science 2016年第1期8卷 51-53,57页

作者： Zhang Qiang wu hongbin Jin Xinwen Institute of Agro-Products Processing Science and Technology Xinjiang Academy of Agricultural and Reclamation Science Key Laboratory of Agro-products Processing Science and Technology Xinjiang Academy of Agricultural and Reclamation Science

[ Objective] The paper aimed to optimize cottonseed meal de-gossypol process by extrusion. [ Method ] The artificial neural network （ANN） was used to stimulate the degradation of free gossypol in cottonseed meal by extrusion process, and a three-layer back propagation neural network was established to predict the degradation of free gossypol. [ Result] The result of 10-fold cross validation showed that the ANN with the training function as traingdx at hidden layer with eight neurons gave the smallest mean square error （MSE）. ANN predicted results were very close to the experimental results with correlation coefficient （R2 ） of 0.994 1 and RMSE of 0.497 1. A genetic algorithm （GA） based on the established neural network model was also used for optimizing de-gossypol process. The re- sults of GA showed that the optimal conditions of de-gossypol were puffing temperature 131℃, water ratio 51% , rotational speed 158 r/rain, and feeding speed 136 kg/h, while under this condition the degradation rate of free gossypol was 90.50%, which was close to the predicted result of CA with the small average relative er- ror of 1.38%. [ Conclusion] These results suggested that the GA based on a neural network model might be an excellent tool for optimizing cottonseed meal de-gos- sypol process.

关键词： Cottonseed meal Extrusion De-gossypol Neural network Genetic algorithm

The Influence of Infill Walls on RC Frames under Seismic Excitation

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建筑工程（中英文版） 2014年第4期2卷 68-72页

作者： Lu Liu Ziyan wu hongbin Sun School of Mechanics and Civil Engineering & Architecture Northwestern Polytechnical University Xi'an 710129 China

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基于风力机特性的风电机组潮流计算

电力自动化设备 2008年第11期28卷 22-25页

作者：吴红斌合肥工业大学电气与自动化工程学院安徽合肥230009

在风力机特性方程和异步发电机的稳态等值模型基础上,建立了基于风力机特性的风电机组潮流计算数学模型。考虑风力机特性方程中的风力机机械力矩和发电机电磁力矩平衡,将风电机组引入处作为功率可变的PQ节点,异步发电机则作为RX等值电... 详细信息

在风力机特性方程和异步发电机的稳态等值模型基础上,建立了基于风力机特性的风电机组潮流计算数学模型。考虑风力机特性方程中的风力机机械力矩和发电机电磁力矩平衡,将风电机组引入处作为功率可变的PQ节点,异步发电机则作为RX等值电路模型,进行了风电机组的潮流计算。该方法引入定子电压,定子电流和转子滑差的修正量,将风力机特性方程中的风速、风能利用系数、尖速比等相关参数引入到潮流计算过程中,通过与常规的牛顿-拉夫逊潮流计算相结合,修正相应的雅可比矩阵来完成,从而保证了潮流计算迭代过程的完整性。该模型既具有传统风电机组RX模型的优点,又可以保证牛顿-拉夫逊方法的平方收敛性。最后,通过2个算例进行了潮流计算,证明了其正确性。

关键词：风力机异步发电机潮流计算雅可比矩阵

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可再生能源分布式发电系统的经济调度

农业工程学报 2010年第12期26卷 287-292页

作者：吴红斌蔡亮合肥工业大学教育部光伏系统工程研究中心合肥230009

对可再生能源分布式发电系统进行经济调度研究,可以在保证能量需求的前提下,使得系统的运行成本和环境污染降到最小,从而更加高效地利用可再生能源。针对由光伏发电、风力发电、燃料电池(FC)、柴油机(DE)、蓄电池等多种分布式电源和储... 详细信息

对可再生能源分布式发电系统进行经济调度研究,可以在保证能量需求的前提下,使得系统的运行成本和环境污染降到最小,从而更加高效地利用可再生能源。针对由光伏发电、风力发电、燃料电池(FC)、柴油机(DE)、蓄电池等多种分布式电源和储能单元组成的分布式发电系统,在详细分析各单元数学模型的基础上,建立了可再生能源发电系统经济调度的目标函数和调度策略,并采用优先顺序法对目标函数进行求解,算例系统验证了模型和算法的正确性。结果表明,该文提出的方法为可再生能源发电系统中各发电单元的优化调度及经济组合提供了参考。

关键词：可再生能源效率经济调度分布式发电优先顺序法

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光伏发电系统建模及对配电网可靠性影响研究

太阳能学报 2016年第5期37卷 1197-1204页

作者：吴红斌王蕾合肥工业大学教育部光伏系统工程研究中心合肥230009

针对影响光伏发电系统出力的两个因素(光照辐射强度和光伏组件温度)分别建立相应的时序数学模型。引入运行状态系数(operation state coefficient,OSC)表征设备运行状态对光伏发电系统出力的影响。将光照资源的波动性和设备的运行状态... 详细信息

针对影响光伏发电系统出力的两个因素(光照辐射强度和光伏组件温度)分别建立相应的时序数学模型。引入运行状态系数(operation state coefficient,OSC)表征设备运行状态对光伏发电系统出力的影响。将光照资源的波动性和设备的运行状态相结合,得出光伏发电系统的多状态时序出力模型。采用序贯蒙特卡罗法,对含光伏发电系统的配电网进行可靠性评估,通过不同的指标来衡量光伏发电系统对配电网可靠性的影响。研究表明,光伏发电系统接入配电网后能有效提高配电网的供电可靠性。

关键词：配电网络光伏发电系统可靠性建模运行状态系数序贯蒙特卡罗法评估

A–D–A’–D–A type nonfused ring electron acceptors for efficient organic solar cells via synergistic molecular packing and orientation control

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Aggregate

Aggregate 2024年第2期5卷 463-472页

作者： WenkuiWei Xia Zhou Shuting Pang Jiadong Zhou Xiyue Yuan Junyu Li Yuting Chen Langheng Pan Zengqi Xie hongbin wu Fei Huang Yong Cao Chunhui Duan Institute of Polymer Optoelectronic Materials and Devices State Key Laboratory of Luminescent Materials and DevicesSouth China University of TechnologyGuangzhouChina School of New Energy Ningbo University of TechnologyNingboChina Molecular Materials and Nanosystems&Institute for Complex Molecular Systems Eindhoven University of TechnologyEindhovenThe Netherlands

Nonfused ring electron acceptors(NFREAs)are promising candidates for future commercialization of organic solar cells(OSCs)due to their simple ***,the power conversion efficiencies(PCEs)of NFREA-based OSCs have large room for *** this work,by merging end group halogenation and side chain engineering,we developed four A-D-A’-D-A type NFREAs,which we refer to as EH-4F,C4-4F,EH-4Cl,and *** crystal X-ray diffraction revealed that multiple intermolecular S⋅⋅⋅F interactions between cyclopentadithiophene and 5,6-difluoro-3-(dicyanomethylene)indanone could cause an unfavorable dimer formation,leading to ineffectiveπ-πstackings in EH-4F and C4-4F,whereas no such dimer was found in EH-4Cl and C4-4Cl after replacing with 5,6-dichloro-3-(dicyanomethylene)***,although the shorter n-butyl side chain resulted in a closer molecular packing in C4-4Cl,EH-4Cl(2-ethylhexyl substitution)with proper crystallinity exhibited enhanced face-on orientation in thin film,which is favorable for vertical charge transport and further reducing charge *** a result,a PCE of 13.0%is obtained for EH-4Cl-based OSC with a fill factor of *** work highlights the importance of molecular packing and orientation control toward future high-performance A-D-A’-D-A type NFREAs.

关键词： molecular orientation molecular packing nonfused ring electron acceptors organic solar cells structure-performance relationships