Exfoliation of Stable 2D Black Phosphorus for Device Fabrication

CORC > 上海光学精密机械研究所 > 中国科学院上海光学精密机械研究所 > 中科院强激光材料重点实验室

	Exfoliation of Stable 2D Black Phosphorus for Device Fabrication
	Sun, Zhenyu; Zhang, Yuqin; Dong, Ningning; Tao, Hengcong; Yan, Chao; Huang, Jiawei; Liu, Tengfei; Robertson, Alex W.; Texter, John; Wang, Jun
刊名	Chem. Mat.
	2017
卷号	29 期号:15 页码:6445
通讯作者	jwang@siom.ac.cn ; sunzy@mail.buct.edu.cn
英文摘要	Discovering stabilizers that protect phosphorene from oxidative degradation is critically required for dispersion processing of black phosphorus (BP). It is equally important to also find environmentally friendly, low-cost, and practical exfoliating media. Herein, we demonstrate the yield of remarkably stable phosphorene by coating with a polymer to shield the nanosheets from reaction with water and air. The polymer shell suppresses the rate of BP degradation more efficiently than previously reported systems. We present for the first tithe a simple kinetic model for exfoliation of BP in polyvinylpyrrolidone (PVP) ethanol solution that appears to quantitatively fit BP exfoliation data, and it illuminates mechanistic aspects of exfoliation. Exfoliated flakes consist of a high level of 51% crystalline single layers that are free from structural disorder or oxidation. A successive centrifugation and redispersion strategy is developed affording dispersions with high phophorene-to-stabilizer ratio, which is very useful for further applications. We also demonstrate that PVP-stabilized phosphorene dispersions possess saturable absorption at both 515 and 1030 nm, which have potential use as ultrafast broadband absorbers. Furthermore, such phosphorene dispersions were processed to prepare new metal/phosphorene nanocomposites that have potential for use as electrocatalysts in electrolytic cells.
收录类别	SCI
资助信息	State Key Laboratory of Organic-Inorganic Composites [oic-201503005]; Fundamental Research Funds for the Central Universities [buctrc201525]; Key Laboratory of Materials for High-Power Laser, Shanghai Institute of Optics and Fine Mechanics, CAS; NSFC [61675217, 61522510]; Strategic Priority Research Program of CAS [XDB16030700]; Key Research Program of Frontier Science of CAS [QYZDB-SSW-JSC041]; Program of Shanghai Academic Research Leader [17XD1403900]; Youth Innovation Promotion Association, CAS
WOS记录号	WOS:000407522300033
内容类型	期刊论文
源URL	[http://ir.siom.ac.cn/handle/181231/28072]
专题	上海光学精密机械研究所_中科院强激光材料重点实验室
作者单位	中国科学院上海光学精密机械研究所
推荐引用方式 GB/T 7714	Sun, Zhenyu,Zhang, Yuqin,Dong, Ningning,et al. Exfoliation of Stable 2D Black Phosphorus for Device Fabrication[J]. Chem. Mat.,2017,29(15):6445.
APA	Sun, Zhenyu.,Zhang, Yuqin.,Dong, Ningning.,Tao, Hengcong.,Yan, Chao.,...&Wang, Jun.(2017).Exfoliation of Stable 2D Black Phosphorus for Device Fabrication.Chem. Mat.,29(15),6445.
MLA	Sun, Zhenyu,et al."Exfoliation of Stable 2D Black Phosphorus for Device Fabrication".Chem. Mat. 29.15(2017):6445.