Highly Promoted Carrier Mobility and Intrinsic Stability by Rolling Up Monolayer Black Phosphorus into Nanoscrolls,The Journal of Physical Chemistry Letters

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Highly Promoted Carrier Mobility and Intrinsic Stability by Rolling Up Monolayer Black Phosphorus into Nanoscrolls
The Journal of Physical Chemistry Letters ( IF 4.8 ) Pub Date : 2018-11-19 00:00:00 , DOI: 10.1021/acs.jpclett.8b02913
Yitian Wang ₁ , Chenghuan Jiang ₂ , Qian Chen ₁ , Qionghua Zhou ₁ , Haowei Wang ₃ , Jianguo Wan ₂ , Liang Ma ₁ , Jinlan Wang ₁

Affiliation

Rolling up two-dimensional (2D) materials into nanoscrolls could not only retain the excellent properties of their 2D hosts but also display intriguing physical and chemical properties that arise from their 1D tubular structures. Here, we report a new class of black phosphorus nanoscrolls (bPNSs), which are stable at room-temperature and energetically more favorable than 2D bP. Most strikingly, these bPNSs hold tunable direct band gaps and extremely high mobilities (e.g., the mobility of the double-layer bPNS is about 20-fold higher than that of 2D bP monolayer). Their unique self-encapsulation structure and layer-dependent conduction band minimum can largely prevent the entrance of O₂ and the production of O₂^– and thereby suppress the possible environmental degradation as well. The enhanced intrinsic stability and promoted electronic properties render bPNSs great promise in many advanced electronics or optoelectronics applications.

中文翻译：

通过将单层黑磷卷成纳米卷，大大提高了载流子的迁移率和内在稳定性

将二维（2D）材料卷成纳米卷，不仅可以保留其2D主体的出色性能，而且还可以显示出因其1D管状结构而引人入胜的物理和化学特性。在这里，我们报告了一类新的黑磷纳米卷（bPNSs），它在室温下稳定，在能量上比二维bP更有利。最引人注目的是，这些bPNS具有可调的直接带隙和极高的迁移率（例如，双层bPNS的迁移率比2d bP单层的迁移率高约20倍）。其独特的自封装结构和层依赖性导带最小值可以在很大程度上防止O入口₂和生产的O- ₂^-从而也抑制了可能的环境恶化。bPNS的增强的固有稳定性和增强的电子性能使bPNS在许多高级电子或光电应用中具有广阔的前景。

更新日期：2018-11-19

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