Photogating-assisted tunneling boosts the responsivity and speed of heterogeneous WSe2/Ta2NiSe5 photodetectors

Mingxiu Liu; Jingxuan Wei; Liujian Qi; Junru An; Xingsi Liu; Yahui Li; Zhiming Shi; Dabing Li; Konstantin ‘kostya’ Novoselov; Cheng‐Wei Qiu; Shaojuan Li

doi:10.1038/s41467-023-44482-7

Abstract

1 min read

Photogating effect is the dominant mechanism of most high-responsivity two-dimensional (2D) material photodetectors. However, the ultrahigh responsivities in those devices are intrinsically at the cost of very slow response speed. In this work, we report a WSe

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