| 谢寿东,张慧,王刚,杨桂军,南辉,陈慧媛,林红.叶绿素与4种天然染料共敏化太阳电池的光电化学性能研究[J].光电子激光,2016,27(12):1267~1273 |
| 叶绿素与4种天然染料共敏化太阳电池的光电化学性能研究 |
| Study on photoelectrochemical properties of solar cells co-semsitized by chloro phyll and four natural dyes |
| 投稿时间：2016-02-25 |
| DOI： |
| 中文关键词: 叶绿素 天然染料 共敏化 染料敏化太阳能电池 |
| 英文关键词:chlorophyll natural dyes co-sensitized dye-sensitized solar cell (DSSC) |
| 基金项目:国家自然科学基金(51362025)和教育部春晖计划(Z2015045)资助项目 (1.青海大学 化工学院,青海 西宁 810016； 2.青海民族大学 青海 西宁 810007； 3.清华大学 材料学院新型陶瓷与精细工艺国家重点实验室,北京 100084) |
|
| 摘要点击次数: 1026 |
| 全文下载次数: 0 |
| 中文摘要: |
| 利用紫外-可见吸收光谱 对提取的叶绿素和4种天然染料(茶多酚、靛蓝、 红花黄、栀子黄)以及叶绿素与4种染料的共敏化 进行比较。通过电化学方法,研 究单一染料和共敏化染料的氧化还原电位。结果表明,杨树叶子中叶绿素最佳的提取 工艺条件为:提取料液比1∶50,提取温度60 ℃,提取时间3.5h。叶绿素与4种天然染料共敏化后不仅拓宽光谱吸 收波长范围,而且染 料激发态氧化电位与TiO2导带能级相匹配。其中叶绿素与栀子黄染料共敏化后,光电化学 性能最好。在太阳光模拟下,叶绿素与栀子黄对电池进行共敏化后光电转换 效率提高到0.67%,是叶绿素染料单独敏化的2.91倍。 |
| 英文摘要: |
| The ultraviolet-visible (UV-Vis) absorption spectra of chlorophyll,tea polyphenols,indigo,saffron,crocin and their co-sensitized dyes are compared.The state levels of dyes are measured by the electrochemical method. The results show that the optimum extraction conditions of chlorophyll the so lid-liquid ratio of 1∶50,extraction temperature of 60℃ and extraction time of 3.5h.The co-sensitized dyes can broaden the range of spe ctral absorption.Furthermore,the excited state level of co-sensitized dyes matches the couduction band edge of TiO2.The photoele ctrochemical property of the co-sensitization of chlorophyll and crocin is the best.The dye-sensitized solar cells (DSSCs) were fab ricated by using natural dyes as sensitizers.Using the co-sensitization of chlorophyll and crocin dyes as sensitizer can improve t he photoelectric conversion efficiency to 0.67%,which is 2.91times larger than that of the chlorophyll. |
| 查看全文 下载PDF阅读器 |
| 关闭 |
|
|
|
|
|