用于染料敏感化太阳能电池的基于乙乙烯的染色体:合成,光谱特性和理论计算

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Published on: September 12, 2014

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Gabriela Malta¹, João Pina², J Carlos Lima¹

¹LAQV@REQUIMTE, Chemistry Department of Nova School of Science and Technology, Nova University of Lisbon, Campus de Caparica, Caparica 2829-516, Portugal.

ACS omega

|April 1, 2024

概括

用于染料敏感太阳能电池 (DSSC) 合成了具有延长π桥的新型乙乙烯染料. 性能最好的染料实现了3.15%的效率,证明了可再生能源应用的潜力.

科学领域:

材料科学材料科学材料科学
有机化学有机化学
可再生能源是可再生能源的来源.

背景情况:

染料敏感太阳能电池 (DSSC) 是一个有前途的光伏技术.
开发高效的有机染料对于提高DSSC性能至关重要.

研究的目的:

为DSSCs合成和评估新型基于乙乙烯的染料,使用烯 π桥.
为了研究不同π桥部分对染料光物理和电化学性能的影响.

主要方法:

索诺加希拉合反应被用来合成具有扩展结合系统的乙甲烯染料.
循环电压测量,紫外线吸收和辐射光谱学用于表征.
密度函数理论 (DFT) 的计算用于支持光谱发现.

主要成果:

合成了四种含有基,基,基和基-[3,2-b]基π桥的乙乙烯染料.
谱学研究表明,红色转移的吸收和排放对于具有扩展合的染料.
乙烯基衍生物 (6a) 的功率转换效率为2.51%,增加CDCA后提高到3.15%.

结论:

带有延长π桥的乙乙烯染料显示了DSSC应用的潜力.
乙烯基衍生物 (6a) 在本系列中表现出最高的效率.
需要进一步优化染料结构和设备组件,以提高DSSC性能.

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