From Black Phosphorus to Phosphorene: Basic Solvent Exfoliation, Evolution of Raman Scattering, and Applications to Ultrafast Photonics,Advanced Functional Materials

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From Black Phosphorus to Phosphorene: Basic Solvent Exfoliation, Evolution of Raman Scattering, and Applications to Ultrafast Photonics
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2015-10-21 , DOI: 10.1002/adfm.201502902
Zhinan Guo ₁ , Han Zhang ₁ , Shunbin Lu ₁ , Zhiteng Wang ₁ , Siying Tang ₂ , Jundong Shao ₁ , Zhengbo Sun ₁ , Hanhan Xie ₂ , Huaiyu Wang ₂ , Xue-Feng Yu ₂ , Paul K. Chu ₃

Affiliation

Although phosphorene has attracted much attention in electronics and optoelectronics as a new type of two‐dimensional material, in‐depth investigations and applications have been limited by the current synthesis techniques. Herein, a basic N‐methyl‐2‐pyrrolidone (NMP) liquid exfoliation method is described to produce phosphorene with excellent water stability, controllable size and layer number, as well as in high yield. Phosphorene samples composed of one to four layers exhibit layer‐dependent Raman scattering characteristics thus providing a fast and efficient means for the in situ determination of the thickness (layer number) of phosphorene. The linear and nonlinear ultrafast absorption behavior of the as‐exfoliated phosphorene is investigated systematically by UV–vis–NIR absorption and Z‐scan measurements. By taking advantage of their unique nonlinear absorption, ultrashort pulse generation applicable to optical saturable absorbers is demonstrated. In addition to a unique fabrication technique, our work also reveals the large potential of phosphorene in ultrafast photonics.

中文翻译：

从黑磷到磷：基本的溶剂剥离，拉曼散射的演变以及在超快光子学中的应用

尽管磷作为一种新型的二维材料已在电子学和光电子学中引起了广泛的关注，但是由于目前的合成技术，深入的研究和应用受到了限制。这里，基本N描述了甲基-2-吡咯烷酮（NMP）液体剥离法可生产出具有出色的水稳定性，可控制的尺寸和层数以及高收率的磷烯。由一到四层组成的磷光体样品表现出取决于层的拉曼散射特性，因此提供了一种快速有效的方法来就地测定磷光体的厚度（层数）。通过紫外可见近红外吸收和Z扫描测量，系统地研究了脱落的磷烯的线性和非线性超快吸收行为。通过利用其独特的非线性吸收，证明了适用于光饱和吸收器的超短脉冲产生。除了独特的制造技术外，我们的工作还揭示了磷光体在超快光子学中的巨大潜力。

更新日期：2015-10-21

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