2014/04/30 by Tony Low, Aleksandr Rodin, A. S. Rodin +6 · 2 citations
Chemistry · Engineering · Materials Science · Physics and Astronomy · #2D Materials and Applications #Absorption (acoustics) #Absorption spectroscopy #Anisotropy #Band gap #Black phosphorus #Chemistry #Composite material #Condensed matter physics #Doping #Graphene research and applications #Hamiltonian (control theory) #Infrared #Infrared spectroscopy #Materials science #Molecular physics #Nanotechnology #Optical conductivity #Optics #Optoelectronics #Perovskite Materials and Applications #Physical chemistry #Physics #Polarization (electrochemistry) #Semiconductor #Spectral line #Spectroscopy #Thin film #cond-mat.mes-hall #cond-mat.mtrl-sci #physics.optics
paper · pdf · doi:10.1103/physrevb.90.075434
published as Phys. Rev. B 90, 075434 (2014) · 6 pages, 4 figures
arxiv created 2014/07/11 · openalex publication_date 2014/08/27 · arxiv updated 2014/09/18 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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.