| 题名: | Direct observation of the layer-dependent electronic structure in phosphorene |
| 作者: | Li, Likai; Kim, Jonghwan; Jin, Chenhao; Ye, Guo Jun; Qiu, Diana Y.; da Jornada, Felipe H.; Shi, Zhiwen; Chen, Long; Zhang, Zuocheng; Yang, Fangyuan; Watanabe, Kenji; Taniguchi, Takashi; Ren, Wencai; Louie, Steven G.; Chen, Xian Hui; Zhang, Yuanbo; Wang, Feng |
| 发表日期: | 2017 |
| 摘要: | Phosphorene, a single atomic layer of black phosphorus, has recently emerged as a new two-dimensional (2D) material that holds promise for electronic and photonic technologies(1-5). Here we experimentally demonstrate that the electronic structure of few-layer phosphorene varies significantly with the number of layers, in good agreement with theoretical predictions. The interband optical transitions cover a wide, technologically important spectral range from the visible to the mid-infrared. In addition, we observe strong photoluminescence in few-layer phosphorene at energies that closely match the absorption edge, indicating that they are direct bandgap semiconductors. The strongly layer-dependent electronic structure of phosphorene, in combination with its high electrical mobility, gives it distinct advantages over other 2D materials in electronic and opto-electronic applications. |
| 刊名: | NATURE NANOTECHNOLOGY |
| Appears in Collections: | 中国科学院金属研究所_期刊论文
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| Recommended Citation: | |
Li, Likai,Kim, Jonghwan,Jin, Chenhao,et al. Direct Observation Of The Layer-dependent Electronic Structure In Phosphorene[J]. Nature Nanotechnology,2017,12(1):21-25.
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