染料敏化太阳能电池中电解质的研究进展

染料敏化太阳能电池是一种新型的太阳能电池（DSSC）。简要介绍了染料敏化太阳能电池的结构和基本原理，根据太阳能电池中电解质的类型分为液体电解质、准固态电解质和固体电解质，分别讨论了其研究进展及优缺点，同时对未来染料敏化太阳能电池的发展进行了展望。     

染料敏化太阳能电池的研究进展

本文介绍了染料敏化太阳能电池的基本结构和原理，并对光电极、敏化染料、电解质的研究进展及其发展趋势进行了概述。     

染料敏化太阳能电池的研究进展

简要介绍了染料敏化太阳能电池(DSSC)的结构和工作原理,评述了染料敏化太阳能电池的几个重要组成部分:纳米半导体薄膜、敏化染料及电解质的研究现状,并总结了当前DSSC研究的主要发展方向.     

染料敏化太阳能电池的研究进展

染料敏化太阳能电池是一种环保太阳能电池,由于其制作工艺简单、小尺寸等特点,在纺织和电子器件供能等领域有着广泛的应用前景.本文介绍了染料敏化太阳能电池的研究现状、组成结构和工作原理,重点介绍了组成太阳能电池中的对电极、光阳极和电解质材料的研究进展和现状,总结了目前染料敏化太阳能电池的研究成果,分析了各种材料作为对电极、光...     

染料敏化太阳能电池中PEDOT/PSS-CuI复合电解质的研究

以实验室自制的无机P型半导体CuI纳米粉体、导电聚合物PEDOT/PSS及乙腈为原料,制备了PEDOT/PSS-CuI复合电解质及纯CuI固体电解质进行对比。通过X射线衍射(XRD)对CuI粉体的晶形进行了分析,用四探针电阻仪测定了电解质薄膜的电阻率,测试了染料敏化太阳能电池的性能。结果表明:当CuI在PEDOT/PSS中添加量为20%时,PEDOT/PSS-CuI复合电解质组装电池的性能最好。且PEDOT/PSS-CuI复合电解质的性能稳定性要优于纯CuI固体电解质。     

用于染料敏化太阳能电池的聚酯型聚氨酯凝胶电解质的研究

通过改变PEG分子量、有机溶剂和碘盐等条件制备了不同系列的聚酯型聚氨酯凝胶电解质。研究发现,当PEG分子量为10000,以1,4-丁内酯为有机溶剂,以NaI/I2为氧化还原电对时,得到的聚氨酯凝胶电解质的电导率最高,达到5.61mS/cm。基于该凝胶电解质的染料敏化纳米晶TiO2太阳能电池在100mW/cm2的入射光强下电池的光电转换效率达到4.06%。     

染料敏化太阳能电池的研究进展

近年来,染料敏化太阳电池以其简单的制作工艺,低廉的生产成本,较高的转换效率和光明的发展前景,已经成为国际上的研究热点。本文介绍了染料敏化太阳电池的研究背景和发展过程,简述了基于纳米TiO2半导体电极材料的太阳能电池的基本结构和工作机理,,并且就染料敏化太阳电池存在的问题和发展前景给予论述。     

染料敏化太阳能电池的研究进展

综述了近年来关于染料敏化太阳能电池制备的研究状况,详细介绍了国内外关于二氧化钛薄膜、反电极、染料和电解质的设计思路及制备情况,并讨论了制备方法对太阳能电池性能的影响.     

染料敏化太阳能电池中凝胶电解质的研究

为提高染料敏化太阳能电-池中电解液的稳定性,对凝胶电解质进行了研究.以1,2-二1甲基-3-丙基咪唑碘(DMPII)作为Ⅰ-源,以3甲氧基丙腈作为溶剂,以偏四氟乙烯一六氟丙烯聚合物(P(VDF-HFP))作为胶凝剂,N-甲基苯并咪唑作为添加剂,制备了凝胶电解质.结果表明,随着电解质中DMPII量及碘量的增加,染料敏化太...     

染料敏化太阳能电池的研究进展

染料敏化太阳能电池(DSSC)由于价格低廉、制备工艺简单、理论光电转化效率高等优点,成为极具研发潜力的太阳能电池之一。介绍了染料敏化太阳能电池的结构和工作原理,综述了各组成部分染料敏化剂、光阳极、电解质和对电极的研究进展,分析探讨了改进和提高DSSC性能的方法和途径,并展望了其未来的发展趋势。     

Novel ionic iodide-siloxane hybrid electrolyte for dye-sensitized solar cells

A novel ionic siloxane hybrid electrolyte was fabricated by thermal polymerization of iodide-oligosiloxane resin. The nanosized iodide-oligosiloxane was synthesized by a simple sol-gel condensation of 3-iodopropyltrimethoxysilane and diphenylsilanediol. It is found that the composition and concentration of the oligosiloxane used in the electrolyte affect the performance of the dye-sensitized solar cells (DSSCs). An optimized DSSC with the hybrid electrolyte using smaller molecular-sized oligosiloxane with a greater amount of iodide groups presented solar to electricity conversion efficiency of 5.2% at 1 sunlight (100 mW cm(-2)), which is comparable to that afforded by a liquid electrolyte.     

Novel in situ crosslinked polymer electrolyte for solid-state dye-sensitized solar cells

A novel poly(citric acid-ethylene glycol)/LiI/I₂ (PCE/LiI/I₂) solid polymer electrolyte (SPE) based on the biodegradable PCE matrix has been prepared in situ, by penetrating of the PCE prepolymer sol into mesoporous TiO₂ photoanode, followed by curing. The PCE prepolymer can easily penetrate into the mesoporous photoanode, which could induce good interfacial contact between the SPE and photoanode. Assembled with the SPE, highly efficient and stable solid-state dye-sensitized solar cells (DSSCs) have been gained due to the good interfacial contact of SPE/TiO₂ photoanode as well as the favorable ionic conductivity of the SPE. The results show that the contents of CA determine the aggregation structure such as the inter-segmental distance and free volume of the PCE matrix, which consequently affects the ionic diffusion coefficient and conductivity of the PCE/LiI/I₂ electrolyte, and accordingly the photoelectric performance of the DSSCs. With CA content of 32.4 wt%, the SPE reaches the optimal ionic conductivity of 5.43 × 10^?5 S cm^?1 and the solid-state DSSCs obtain the best overall photoelectric conversion efficiency of 1.22 % at 60 mW cm^?2.     

Quasi-gel-state ionic liquid electrolyte with alkyl-pyrazolium iodide for dye-sensitized solar cells

A series of non-volatile viscous ionic liquid, 1-alkyl-2-methylpyrazolium iodides (RPyI: R = C₃-C₇), were synthesized for the electrolyte of dye-sensitized solar cells (DSSC). Most of RPyI revealed extremely viscous quasi-gel-state electrolytes potentially preventing leakage and evaporation of electrolytes of the solar cells. A DSSC using the electrolyte composed of 1-hexyl-2-methylpyrazolium iodide (C₆PyI) with iodine exhibiting higher conversion efficiency of 3.8% (under 1 Sun) for 10% larger short-circuit photocurrent, J_SC, than that with a conventional ionic liquid, 1-hexyl-3-methyllimidazolium iodide (C₆ImI) with iodine, in spite of less favorable viscosity (2013 mPa s (C₆PyI/I₂) vs. 1439 mPa s (C₆ImI/I₂)) for the physical diffusion of charge carriers in the electrolyte. Furthermore, the quasi-gel-state electrolytes composed of a series of RPyI ionic liquids surprisingly exhibiting comparable J_SC to that with much less viscous C₆ImI/I₂. We discuss the results of quasi-gel-state RPyI ionic liquid electrolyte for DSSC based on the Grotthus-like electron exchange mechanism of iodide redox species in the highly viscous RPyI ionic liquid evaluated qualitatively by Raman spectroscopic observation of poly-iodide species.     

纳米聚吡咯的制备及在准固态染料敏化太阳电池中的应用

以AS树脂作为聚合物凝胶电解质基体，乙腈和四氢呋喃作为混合有机溶剂制备准固态染料敏化太阳电池。经过各个组成的优化，聚合物凝胶电解质电导率（30℃）达到5．11mS／cm，准固态染料敏化太阳电池的光电转换效率在100mW／cm^2光强下达2．56％：温度对聚合物凝胶电解质的电导率的影响；通过在聚合物凝胶电解质中加入纳米聚吡硌添加剂，准固态染料敏化太阳电池的光电转换效率在100mW／cm^2光强下提高到3．23％。     

Nanowire dye-sensitized solar cells

Excitonic solar cells-including organic, hybrid organic-inorganic and dye-sensitized cells (DSCs)-are promising devices for inexpensive, large-scale solar energy conversion. The DSC is currently the most efficient and stable excitonic photocell. Central to this device is a thick nanoparticle film that provides a large surface area for the adsorption of light-harvesting molecules. However, nanoparticle DSCs rely on trap-limited diffusion for electron transport, a slow mechanism that can limit device efficiency, especially at longer wavelengths. Here we introduce a version of the dye-sensitized cell in which the traditional nanoparticle film is replaced by a dense array of oriented, crystalline ZnO nanowires. The nanowire anode is synthesized by mild aqueous chemistry and features a surface area up to one-fifth as large as a nanoparticle cell. The direct electrical pathways provided by the nanowires ensure the rapid collection of carriers generated throughout the device, and a full Sun efficiency of 1.5% is demonstrated, limited primarily by the surface area of the nanowire array.     

离子液体对CuI固体电解质色素增感太阳能电池性能的影响

应用浸渍涂膜法制备了CuI固体电解质薄膜,组装了DSSC电池.用扫描电镜观察了CuI薄膜的表面形貌,四探针电阻仪测定了CuI薄膜的电阻率,XJCM-8太阳电池测试仪测试了DSSC电池的性能结果表明:添加适量的离子液体可以有效地抑制CuI晶粒的生长;提高CuI晶粒与多孔TiO2薄膜孔径尺寸的相配度;减小CuI薄膜的电阻率.这些都是影响CuI固体电解质色素增感太阳能电池性能及稳定性的重要因素.     

Ionic liquid-based electrolyte solidified with SiO2 nanoparticles for dye-sensitized solar cells

The performance of dye-sensitized solar cells (DSSC) based on the propyl-methyl-imidazolium iodide (PMII) ionic liquid (IL) with and without the addition of SiO₂ nanoparticles is studied. Results confirm that the presence of SiO₂ nanoparticles in PMII electrolyte improves the charge transport of iodide/tri-iodide redox couple in the electrolyte and consequently increases the efficiency of DSSC up to 20%, relatively. Short circuit current density (J_SC) of the DSSC under illumination may be limited by the charge transport of the redox couple in the IL-based electrolytes and a theoretical maximum of J_SC can be evaluated from the cyclic voltammetry measurements of simple symmetric cells (TCO-PtelectrolytePt-TCO). The results show a strong temperature dependence of the DSSC performance if the PMII/I₂-based electrolytes are used.