29种天然染料敏化的太阳电池的性能研究
发布时间：2018-01-16 16:37
本文关键词：29种天然染料敏化的太阳电池的性能研究 出处：《光电子.激光》2014年10期 论文类型：期刊论文
更多相关文章： 染料敏化太阳能电池(DSSCs) 天然染料 光电性能 吸收光谱
【摘要】：采用超声波萃取法从29种天然植物中提取染料,测试天然染料的紫外-可见光(UV-vis)吸收光谱,探讨天然染料所含的色素种类。采用水热法制备了TiO2薄膜电极,用所提取的29种天然染料敏化TiO2光电极并将其组装成染料敏化太阳电池(DSSCs)。测试天然染料敏化的DSSCs的光电性能结果显示,天然染料敏化的DSSCs的开路电压Voc为0.46~0.64V,短路电流Isc为0.07~3.61mA·cm-2,其中山竹皮敏化的DSSCs光电性能最佳,对应的Isc和光电转换效率η分别为3.61mA·cm-2和2.13%。从天然染料中挑选出7种不同吸收波段色素的染料进行协同敏化,UV-vis吸收光谱测试结果显示混合染料的吸收峰一般有微小偏移。光电性能测试结果表明,协同敏化后的DSSCs的性能一般都介于天然染料单独敏化的两个DSSCs的性能之间,其中山竹皮和芥蓝协同敏化的DSSCs的η最高,为1.70%。对实验结果进行深入分析,探讨提高天然染料敏化的DSSCs光电性能的途径。
[Abstract]:Ultrasonic extraction method was used to extract dyes from 29 kinds of natural plants. UV-vis absorption spectra of natural dyes were measured. The TiO2 thin film electrode was prepared by hydrothermal method. The TiO2 photoelectrodes sensitized by 29 kinds of natural dyes were extracted and assembled into a dyestuff sensitized solar cell. The photoelectric properties of the DSSCs sensitized by natural dyes were tested. The open circuit voltage (Voc) and short circuit current (Isc) of natural dyestuff sensitized DSSCs are 0.46 ~ 0.64V and 0.073.61mA 路cm-2, respectively. The optoelectronic properties of DSSCs sensitized by bamboo skin were the best. The corresponding Isc and photoelectric conversion efficiency 畏 were 3.61 Ma 路cm-2 and 2.13 respectively. Seven dyes with different absorption bands were selected from natural dyes for synergistic sensitization. The UV-vis absorption spectra show that the absorption peaks of the mixed dyes generally have a small deviation, and the photoelectric performance test results show that the absorption peaks of the mixed dyes are usually slightly shifted. The properties of co-sensitized DSSCs were generally between those of two DSSCs sensitized by natural dyes alone, and the 畏 of co-sensitized DSSCs of carnation skin and kale was the highest. The experimental results were analyzed deeply and the ways to improve the optoelectronic properties of natural dyestuff sensitized DSSCs were discussed.
【作者单位】： 中国矿业大学理学院;
【基金】：中央高校基本科研业务费专项资金(2014QNA56)资助项目
【分类号】：TM914.4
【正文快照】： 1引言染料敏化TiO2太阳电池(DSSCs)是一种新型光电化学太阳能电池,制作工艺简单、成本低廉和性能稳定,并且对环境污染很小,具有很好的应用前景[1]。自从1991年Gr¨atzel等[2]研制出效率达到7.1%的DSSCs后,因其成本相对于Si太阳电池较低,引起了广泛关注。目前可用作敏化剂的染
【参考文献】
相关期刊论文 前2条
1 李艳;庄全超;王洪涛;方亮;强颖怀;;天然染料敏化太阳能电池的性能研究[J];人工晶体学报;2012年06期
2 杨桂军;王h，
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