Role of the Blend Ratio in Polymer:Fullerene Phototransistors
Role of the Blend Ratio in Polymer:Fullerene Phototransistors
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DOI：
10.1021/acsaelm.0c00445
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发表时间：
2020-07-28
影响因子：
4.7
通讯作者：
Labram, John G.
中科院分区：
文献类型：
--
作者：
Herrera, Cinthya Trujillo;Hong, Min Ji;Labram, John G.
由于光电晶体管能够将联合收割机的检测和处理结合到一个元件中，因此它有可能成为一种颠覆性的光学检测技术。然而，不幸的是，目前的电流和入射光功率密度之间的关系是复杂的和知之甚少。在这份报告中，我们研究了聚合物与富勒烯的比例如何影响有机光电晶体管的性能。我们发现了令人惊讶的结果，即即使是很小百分比（1重量%）的聚合物也可以显著地改变有机光电晶体管对绿色光的光学响应。聚合物：富勒烯光电晶体管，如本报告中所展示的那些具有高度光学透明的激发波长和单极的综合优势。
Because of their ability to combine detection and processing into a single element, phototransistors have the potential to be a disruptive optical-detection technology. Unfortunately, however, at present the relationship between current and incident optical power density is complicated and poorly understood. In this report, we investigate how the ratio of polymer to fullerene affects the performance of organic phototransistors. We find the surprising result that even a small percentage (1% by weight) of polymer can modify the optical response of organic phototransistors to green light significantly. Polymer:fullerene phototransistors such as those demonstrated in this report have the combined advantages of being highly optically transparent to the excitation wavelength and being unipolar.