基于包含两个互补组件的协同配色的高效太阳能电池:共同敏感化的替代方法
Kaiwen Zeng1, Yingying Chen1, Wei-Hong Zhu1
1Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China.
Journal of the American Chemical Society
|February 25, 2020
概括
研究人员为高效的染料敏感太阳能电池 (DSSC) 开发了新的"协同伴侣染料". 这些联染料简化了制造和优化,使用电解质实现了创纪录的12.4%效率.
科学领域:
- 材料科学
- 太阳能发电
- 有机化学
背景情况:
- 染料敏感化太阳能电池 (DSSC) 通常使用两种染料进行共敏感化以获得广泛的光吸收.
- 同敏感化需要对染料比率和TiO2膜上的分布进行复杂的优化.
- 这种优化过程耗时,并限制了战略的潜力.
研究的目的:
- 开发一种使用共价连接染料的替代方法,以获得高效的DSSC.
- 设计和合成
主要方法:
- 通过灵活的链条将有机染料Z2与氨酸染料XW51联合合成了一类协同伴随染料.
- 使用合成染料 (XW60-XW63) 制造的DSSC.
- 通过将XW61染料与氧化酸共同吸收来优化细胞性能.
主要成果:
- 合成的染料 (XW60-XW63) 具有很好的吸收率和8.8%至11.7%的效率.
- 染料XW61,当与氧化酸共吸收时,实现了以电解质为基础的DSSC的12.4%效率.
- 这种新染料具有诸如简单的细胞制造,简单的优化和优异的光稳定性等优点.
结论:
- 协同配色剂为高性能DSSC提供了简化和有效的策略.
- 这种方法克服了传统的共感化方法的局限性.
- 开发的染料代表了DSSC技术的重大进步,特别是对于电解质系统.
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