In article number 1804020, Jun Wang, Xinran Wang, and co‐workers incorporate an organic heterojunction (C₆₀/pentacene) on graphene to realize a broadband (405–1550 nm) phototransistor with high gain and fast response speed. A bidirectional photoresponse (positive and negative photocurrent) is demonstrated at different wavelengths, due to the opposite charge‐transfer direction of the photoexcited carriers, which provides an efficient way to enhance the spectral responsivity and range for graphene detectors.

中文翻译：

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光电晶体管：具有宽带和双向光响应的石墨烯/有机半导体异质结光电晶体管（Adv。Mater。49/2018）

在文章1804020中，王军，王欣然及其同事在石墨烯上结合了有机异质结（C ₆₀ /并五苯），以实现具有高增益和快速响应速度的宽带（405-1550 nm）光电晶体管。由于光激发载流子的电荷转移方向相反，因此在不同的波长处显示了双向光响应（正和负光电流），这为增强石墨烯检测器的光谱响应度和范围提供了一种有效的方法。