Tunable optical properties of multilayer black phosphorus thin films

被引：631

作者：

Low, Tony ^{[1
,2
,3
]}

Rodin, A. S. ^{[4
]}

Carvalho, A. ^{[5
,6
]}

Jiang, Yongjin ^{[7
]}

Wang, Han ^{[1
]}

Xia, Fengnian ^{[2
]}

Neto, A. H. Castro ^{[4
,5
,6
]}

机构：

[1] IBM Corp, Thomas J Watson Res Ctr, Yorktown Hts, NY 10598 USA

[2] Yale Univ, Dept Elect Engn, New Haven, CT 06511 USA

[3] Univ Minnesota, Dept Elect & Comp Engn, Minneapolis, MN 55455 USA

[4] Boston Univ, Boston, MA 02215 USA

[5] Natl Univ Singapore, Graphene Res Ctr, Singapore 117542, Singapore

[6] Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore

[7] Zhejiang Normal Univ, Jinhua 321004, Peoples R China

来源：

PHYSICAL REVIEW B | 2014年 / 90卷 / 07期

关键词：

CRYSTALS;

D O I：

10.1103/PhysRevB.90.075434

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Black phosphorus thin films might offer attractive alternatives to narrow-gap compound semiconductors for optoelectronics across mid- to near-infrared frequencies. In this work, we calculate the optical conductivity tensor of multilayer black phosphorus thin films using the Kubo formula within an effective low-energy Hamiltonian. The optical absorption spectra of multilayer black phosphorus are shown to vary sensitively with thickness, doping, and light polarization. In conjunction with experimental spectra obtained from infrared absorption spectroscopy, we also discuss the role of interband coupling and disorder on the observed anisotropic absorption spectra.

引用

页数：5

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