由电泳沉积ZIF-67薄膜制备高效染料敏化太阳能电池对电极

为了提高碳化ZIF-67薄膜制备的染料敏化太阳能对电极的光电性能,本研究通过碳化电泳沉积ZIF-67薄膜得到多孔碳电极,并进一步在多孔碳电极热分解氯铂酸得到负载铂的多孔碳复合电极。通过光电流-电压曲线、电化学阻抗谱和强度调制光电流谱等的测试,对比单独在FTO导电玻璃基底热分解氯铂酸得到的铂电极和单独碳化电泳沉积ZIF-67薄膜得到的多孔碳电极,研究了负载铂的多孔碳复合电极作为染料敏化太阳能电池对电极的光电性能。与其它两种对电极相比,以负载铂的多孔碳复合电极为对电极的染料敏化太阳能电池光电转换效率最高,因碳化ZIF-67薄膜的多孔电极具有较大的比表面积,能负载足够量的铂,从而提供更多的催化位点,具有更好的催化性能,从而使染料敏化太阳能电池的光电转换效率得到显著提升。     

Low temperature fabrication of high performance and transparent Pt counter electrodes for use in flexible dye-sensitized solar cells

High performance Pt counter electrode is prepared by using vacuum thermal decomposition at a relatively low (120℃) temperature on a flexible polyethylene naphthalate substrate coated with indium-doped tin oxide for use in flexible dye-sensitized solar cells.The obtained Pt counter electrode shows a good chemical stability,high light transmittance,and high electrocatalytic activity for the I3-/I-redox reaction.The energy conversion efficiency of a flexible dye-sensitized solar cell based on the prepared Pt counter electrode and a TiO 2 /Ti photoanode reaches 5.14% under a simulated solar light irradiation with intensity of 100 mW cm-2.     

染料敏华太阳能电池的研究进展与趋势

对染料敏化太阳能电池（DSC）的结构原理进行了详细的概述．着重对DSC中的纳米半导体薄膜材料、敏化剂、电解质、对电极等几个方面的现状与发展趋势进行了评述,并对DSC遇到的挑战与应用前景进行了展望．     

染料敏化太阳能电池电解质的还原电位对开路电压的影响

研究了不同溶剂和不同对电极对I3-的还原电位和染料敏化太阳能电池的开路电压的影响。在I3-/I-的离子浓度和染料敏化TiO2膜性能相同的情况下,能使I3-在较高的电位下就能还原的对电极溶剂有较高的开路电压。相对于Pt对电极,用石墨作对电极时有较高的开路电压,这是由于小电流时I3-/I-在石墨表面的还原反应过电位要比在Pt表面小。     

大面积染料敏化太阳能电池的结构组件设计与性能测试

介绍了大面积染料敏化太阳能电池（DSC）的制备和设计思路,探讨了电阻对大面积染料敏化太阳电池光伏特性的影响,给出了解决这一问题的途径,并进行了内部串联（DSC）与内部并联（DSC）两种组件的性能测试。     

A novel method for preparing platinized counter electrode of nanocrystalline dye-sensitized solar cells

The platinized FTO glass counter electrode was prepared by employing techniques of colloid preparation, Langmuir-Blodgett film and serf-assembly. The present electrode had very low platinum loading, high catalytic activity for iodine/triiodide reduction reaction. Compared with the conventional counter electrodes used in nanocrystalline dye-sensitized solar cells, the present electrode had provided a much higher catalytic performance which was attributed to the structure of platinum nanoclusters distributed homogeneously on the electrode.     

无电解沉积用于太阳能电池(英文)

研究分为两部分讨论:(1)是利用无电镀与自组装单分子层表面改质技术制备用于染料敏化太阳能电池上具有催化性的铂对电极;(2)是利用无电镀与微米压印法技术制备硅单晶太阳能电池的电极.适当的表面改质技术(Self-assembled monolayers,SAMs)成功地开发出一低温湿式制程,可制备出具有高度选择性的铂对电极用于透明导电玻璃面上.通过原子力显微镜分析,发现3-(2-Aminoethylamino)propylmethyl-dimethoxysilane(Me-EDA-Si)可成功的改质于透明导电玻璃上,同时利用高解析电子能谱仪来分析每一步骤的改质,证明钯触媒可成功的接于导电玻璃上以催化铂无电镀反应的进行,因而发现经无电镀沉积的薄膜呈现粗糙的表面而提高了铂触媒的活性表面积.因此利用无电镀所制备的铂对电极所组装而成的染料敏化太阳能电池具有较利用溅镀法所制备的铂对电极所组成之电池有较高的效率.为开发制备双层结构(无电镀Ni3P/电镀铜)的电极于硅单晶太阳能电池上作为收集太阳能电池所产生的电子.结合了无电镀与微米压印法来制备无电镀镍金属为导电层以取代传统的银浆.其优点在于利用无电镀镍作为导电层可降低与硅基材之间的接触电阻(NiP为10-4Ω.cm2,银为10-3Ω.cm2),更可大幅的降低线宽(小于40μm).另微米压印法不只能提升电池之效率更可提高模块之功率.在无抗反射层的相同条件下,利用无电镀与微米压印法所制备之电池其效率可高于传统利用银浆所制备之太阳能电池约1%左右的效率.     

A dye-sensitized solar cell based on PEDOT:PSS counter electrode

A counter electrode for dye-sensitized solar cell (DSSC) was prepared by coating poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) with high transparency and adhesion on a conducting FTO glass at low temperature. The surface morphology, conductivity, sheet resistance, redox properties and photoelectric properties of the PEDOT:PSS/carbon electrodes were observed using scanning electron microscopy, a four-probe tester and a CHI660D electrochemical measurement system. The experimental results showed that DSSCs had the best photoelectric properties for PEDOT:PSS/carbon counter electrodes annealed at 80°C under vacuum conditions. The overall energy conversion efficiency of the DSSC with PEDOT:PSS/carbon counter electrode and barrier layer reached 7.61% under irradiation from a simulated solar light with intensity of 100 mW/cm² (AM 1.5). The excellent photoelectric properties, simple preparation procedure and low cost allow the PEDOT:PSS/carbon electrode to be a credible alternative electrode for use in DSSCs.     

Performances improvement of eosin Y sensitized solar cells by modifying TiO_2 electrode with silane-coupling reagent

Chemical fixing of xanthene dye (eosin Y) on the surface of TiO2 electrode was carried out by modifying the electrode with silane-coupling reagent to obtain stable dye-sensitized TiO2 electrode. Such silane modification can not only evidently enhance the stability of dye-sensitized TiO2 electrode but also im-prove the energy conversion efficiency of the assembled cells by increasing short-circuit photocurrent (JSC) and open-circuit photovoltage (VOC). It was found that the improvements of cell performances ...     

碳掺杂ZnO的制备及光电性能

以乙烯基乙二醇为C源,通过简单的液相法制备了C掺杂的ZnO.通过XRD和XPS分析确定C取代ZnO中的O位,掺杂后的ZnO仍为六方纤锌矿结构.将C掺杂ZnO用作染料敏化太阳能电池阳极材料,电池性能各项参数均有所提高,其中光电流提高了40%,光电转化效率提高了32%.采用交流阻抗进一步研究了ZnO染料敏化太阳能电池界面电阻和电子传输性质.     

染料敏化太阳能电池二氧化钛光阳极的研究进展

介绍了染料敏化太阳能电池(DSSC)的结构和工作原理,针对目前全世界关于染料敏化太阳能电池二氧化钛光阳极的改性进展进行了综述. 目前,TiO₂薄膜改性手段主要包括:表面处理、离子掺杂、半导体复合、微观有序空间结构、多孔化结构、贵金属沉积等. 改性二氧化钛光阳极是为了减少阳极和染料之间的界面阻抗以提高DSSC的光电转换效率. 最后对DSSC中光阳极改性的发展趋势和应用前景做了期许和展望,提出工程设计微观有序TiO₂光阳极结构、更大程度地开发TiO₂光阳极的制膜工艺、发挥各种手段的优势互补协同作用是未来染料敏化太阳能电池二氧化钛光阳极改性的方向. 对TiO₂光阳极界面之间的电阻和电子传输的机理进行更深层次的研究和探讨对染料敏化太阳能电池的工业化是非常必要的.      

LabVIEW在染料敏化太阳电池测试系统中的应用

该试验从染料敏化太阳电池的测试原理和所需要的测试方案出发,结合测试系统对软件系统的需求,并基于LabVIEW具有使用方便,易于扩展,能够实现模块化、实时性、多任务等方面的优点,选用LabVIEW为测试系统软件的程序设计语言,几年来的实验结果表明,此测试系统符合染料敏化太阳电池测试和实时监测的要求.     

Preparation of porous nanocrystalline TiO2 electrode by screen-printing technique

Different paste has been used for preparing porous TiO2 thin film by screen-printing technique, the main component of it comes from commercial TiO2 P25 power. The dye-sensitized solar cell based on this TiO2 thin film without further chemical treatments exhibits high overall conversion efficiency of 5.81%―6.70%, even with low TiO2 content and thin film thickness. The experimental repeatability is nice and the properties of the films are uniform.     

PbS对电极的制备及其对量子点敏化太阳能电池光电性能的影响

采用电化学沉积法在ITO透明导电玻璃上制备PbS纳米晶薄膜,研究其对量子点敏化太阳能电池光电性能的影响.研究发现,该PbS纳米晶薄膜由粒径约几十纳米到几百纳米的颗粒堆积而成,形成了较疏松的薄膜结构.X线衍射分析表明,该PbS为立方相结构.采用PbS薄膜作为对电极,CdSe量子点敏化TiO2纳米晶薄膜为光阳极组装电化学电池,电池的效率由Pt对电极的0.045%增大到0.098%,表明PbS对电极的电催化活性优于Pt对电极.     

TiO2 nanotube arrays and TiO2-nanotube-array based dye-sensitized solar cell

To substitute the non-regular nano-crystalline semiconductor for a novel kind of ordered microstructure is a very important aspect in the domain of dye-sensitized solar cell. One of the researching hot- spots is the highly-ordered TiO2 nanotube architecture. As a new type of titania nano-material, titania nanotube arrays have drawn extraordinary attention due to its distinctive morphology, notable photo-electrical and hydro-sensitive performance. At 100% sun the new kind of TiO2 nanotube arrays solar cell exhibits an overall conversion efficiency of 5.44%. This paper introduces the preparation methods of titania nanotube arrays, the existing problems and recent progress in titania nanotube arrays solar cell.     

DSSC太阳能电池

介绍了染料敏化纳米太阳能电池(DSSC电池)的结构和原理,对纳米TiO2膜、敏化染料、电解质的研究进展进行了综述,并对其应用前景作出展望.     

石墨烯纳米薄片的制备及其作为DSCs对电极的光电性能

采用氧化还原法制备出多层结构的石墨烯纳米薄片（GNs）,分析了还原阶段水浴时间对GNs晶体结构的影响,着重探讨了GNs作为染料敏化太阳电池（DSCs）对电极催化层的光电性能及阻抗特征。结果表明,还原阶段水浴反应时间为24h时制备出的GNs平均层数最薄,平均厚度只有7层,将该反应时间制备出的GNs对电极组装成DSCs后,其短路电流（JSC）及填充因子（FF）明显地比石墨和氧化石墨（GO）对电极组装成DSCs的JSC和FF要高,因此使得其转换效率达到最好,为1.17%,比石墨和氧化石墨（GO）对电极分别增加了0.175%和1.034%。阻抗分析发现,GNs对电极的串阻（Rs）明显的减小,从而使得GNs作为染料敏化太阳电池（DSCs）对电极催化层的光电性能达到最佳。     

TiO2双层薄膜电极与背反射共构DSSC制备及表征

提出并设计制备了一种新型的染料敏化太阳能电池(DSSC)的结构.该结构是在DSSC的光阳极上通过丝网印刷技术制备由尺寸不同的纳晶粒子构成的双层纳米晶TiO2薄膜,并在DSSC对电极的背面置放一层镀银反光膜.采用透射电子显微镜(TEM)、扫描电子显微镜(SEM)、X射线电子衍射仪(XRD)等手段分析了双层纳米晶TiO2薄膜的结构和形貌.通过实验,获得了双层纳米晶TiO2薄膜的最佳膜厚,分析了镀银反光膜的反光率.研究结果表明:在AM15、光强100mW/cm2的模拟太阳光下测试,这种新型结构的开路电压、短路电流、填充因子分别为075V,1117mA/cm2和0523;光电转换效率达到438%,比相同条件下传统的三明治型结构提高了241%.     

染料敏化太阳电池稳态平衡特性研究

建立了染料敏化太阳电池稳态平衡条件下的动力学模型.研究了电子扩散长度L、光吸收系数α、薄膜厚度d 等参数对其电子浓度分布特性及开路电压的影响,将理论模拟结果与实验结果进行了对比,较好的一致性说明了该模型的可靠性.     

染料敏化太阳电池及其光阳极研究

染料敏化太阳电池因其安全无毒、制作工艺简单、成本低廉等优势,在研究和开发方面得到广泛关注和重视。该文介绍了染料敏化太阳电池及其光阳极研究进展。指出了染料敏化太阳电池光阳极新材料和结构改进努力的方向。