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在光伏中使用P-Doped碳纳米管作为吸光电子捐赠体

Christopher J Blackwell¹, Tommaso Bianconi¹, Zachary M Faitz¹

¹†Department of Materials Science and Engineering and ‡Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States.

The journal of physical chemistry. C, Nanomaterials and interfaces

|October 10, 2025

概括

半导体单壁碳纳米管 (s-SWCNTs) 的化学剂通过保持光电效率来提高光伏性能. 这项研究揭示了兴奋剂的使用.

科学领域:

材料科学材料科学材料科学
有机电子有机电子
纳米技术纳米技术

背景情况:

半导体兴奋剂增强有机电子设备.
对半导体单壁碳纳米管 (s-SWCNTs) 的兴奋剂影响已为热电,LED和晶体管进行了充分研究.
兴奋剂对基于s-SWCNT的光伏产品的影响在很大程度上仍未被探索.

研究的目的:

研究化学p-doped (6,5) s-SWCNTs的光伏行为.
探索它们作为C60.0的供体-受体异质连接中的吸光供体材料的使用.
了解兴奋剂,光电流生成和光发光之间的关系.

主要方法:

使用化学p-doped (6,5) s-SWCNTs和C60.0.的光伏设备的制造.
光学吸收和光电产生的特征.
光发光度测量以评估兴奋剂效应.
扩散有限接触火模型的应用.

主要成果:

兴奋剂减少了光的吸收,但保持了每一个被吸收的光子的光电到80μm-1.1.
尽管光发光衰减,但光电效率仍然很高.
兴奋剂使得从1.07 eV附近的三子中产生光电流.
从s-SWCNTs到C60的超快电子转移被确定为关键机制.

结论:

化学添加的s-SWCNT是光伏设备中高效的捐赠材料.
兴奋剂提供了一种方法来研究激发性半导体中的三子动力学.
这些发现挑战了关于对s-SWCNT光伏产品的兴奋剂影响的先前假设.

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