Effective photoconductivity of exfoliated black phosphorus for optoelectronic switching under 1.55 μm optical excitation

Journal Article · Thu Jan 14 00:00:00 EST 2016 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4939615· OSTI ID:22494901

Tripon-Canseliet, C.; Maksimovic, I.; Géron, E. ^[1]; Rosticher, M. ^[2]; Liu, Z. ^[3]

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1. Laboratoire de Physique et d'Etude des Matériaux, Ecole Supérieure de Physique et de Chimie Industrielle de la ville de Paris, UMR8213, 10 rue Vauquelin 75231 Paris Cedex 05 (France)
2. Laboratoire Pierre Aigrain, Département de Physique de l'Ecole Normale Supérieure, 24 rue Lhomond 75231 Paris Cedex 05 (France)
3. School of Materials Science and Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798 (Singapore)

We present a microwave photoconductive switch based on exfoliated black phosphorus and strongly responding to a 1.55 μm optical excitation. According to its number of atomic layers, exfoliated black phosphorus presents unique properties for optoelectronic applications, like a tunable direct bandgap from 0.3 eV to 2 eV, strong mobilities, and strong conductivities. The switch shows a maximum ON/OFF ratio of 17 dB at 1 GHz, and 2.2 dB at 20 GHz under 1.55-μm laser excitation at 50 mW, never achieved with bidimensional materials.

• OSTI ID: 22494901
• Journal Information: Journal of Applied Physics, Vol. 119, Issue 2; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
EXCITATION
GHZ RANGE 01-100
LASERS
LAYERS
MATERIALS
MICROWAVE RADIATION
MOBILITY
PHOSPHORUS
PHOTOCONDUCTIVITY
SWITCHES