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有效的有机太阳能电池具有螺旋式二烯二胺电子接受器

Yu Zhong¹, M Tuan Trinh, Rongsheng Chen

¹The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, Optoelectronic Nano Materials and Devices Institute, Department of Chemistry, Shanghai Normal University , Shanghai 200234, China.

Journal of the American Chemical Society

|October 15, 2014

概括

研究人员在非富勒烯太阳能电池中使用螺旋式二烯二胺 (PDI) 模块实现了6.1%的效率. 这项研究揭示了这些先进的光伏设备中电荷载体生成和重组动态.

科学领域:

材料科学材料科学材料科学
太阳能光伏发电是如何实现的
有机电子有机电子

背景情况:

非富勒烯受体对于提高有机太阳能电池性能至关重要.
解决方案处理的太阳能电池提供了具有成本效益的制造潜力.
了解捐赠者-接受者接口上的电荷动态是提高效率的关键.

研究的目的:

报告一种新型溶液加工非富勒烯太阳能电池的效率.
研究控制电荷生成和重组的光物理过程.
为了探索螺旋式二氧化二烯二胺 (PDI) 二聚体作为电子接受器的作用.

主要方法:

使用螺旋式PDI二极管制造的溶液加工非富勒烯太阳能电池的制造.
五秒短暂吸收光谱检测电子和孔转移动态.
根据光强度进行电流-电压测量以分析重组率.

主要成果:

为太阳能电池实现了6.1%的功率转换效率.
在捐赠者-接受者接口观察到同时发生的电子和孔转移.
在捐赠和接受阶段,从激子中证明了电荷载体的产生.
在短路和开放电路条件下确定了不同的重组率.

结论:

螺旋二烯二胺 (PDI) 模是溶液加工非富勒烯太阳能电池中有效的电子受体.
该研究提供了对基本电荷生成和重组机制的见解.
进一步优化供体-接受体形态和能量水平可以提高设备的性能.

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