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Extraordinarily Bound Quasi-One-Dimensional Trions in Two-Dimensional Phosphorene Atomic Semiconductors

Xu, Renjing; Zhang, Shuang; Wang, Fan; Yang, Jiong; Wang, Zhu; Pei, Jiajie; Win Myint, Ye; Xing, Bobin; Yu, Zongfu; Fu, Lan; Qin, Qing Hua; Lu, Yuerui


We report a trion (charged exciton) binding energy of ∼162 meV in few-layer phosphorene at room temperature, which is nearly 1–2 orders of magnitude larger than those in two-dimensional (2D) transition metal dichalcogenide semiconductors (20–30 meV) and quasi-2D quantum wells (∼1–5 meV). Such a large binding energy has only been observed in truly one-dimensional (1D) materials such as carbon nanotubes, whose optoelectronic applications have been severely hindered by their intrinsically small...[Show more]

CollectionsANU Research Publications
Date published: 2016
Type: Journal article
Source: ACS Nano
DOI: 10.1021/acsnano.5b06193


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