Quantitative analysis of plasmon excitations in hard x-ray photoelectron spectra of bulk black phosphorus

Abstract

Energy loss distribution of P 1s photoelectrons in black phosphorus Discrimination of plasmon excitations and inter band transitions Anomalous surface plasmon resonance at 9 eV DFT calculated ELF tensor vs measured ELF

Structural Features, Anisotropic Thermal Expansion, and Thermoelectric Performance in Bulk Black Phosphorus Synthesized under High Pressure

“…Figure a exhibits the survey spectrum in which P, O, and C chemical elements appeared as expected. It is also interesting to notice the occurrence of energy loss peaks almost up to third order, which are satellites of the main P 2p and P 2s peaks. , They are related to the creation of plasmon excitations with E p energy around 20.2 eV, which gives an electron density n of 2.96 × 10 23 cm –3 by using the equation n = m e E p 2 /(4π e 2 ℏ 2 ) . The observed carbon signal located at 285 eV arises from adventitious carbon, which was employed for calibration of the binding energy.…”

Wafer-sized WS2 monolayer deposition by sputtering

“…52 The horizontal lines indicate the distance from the main peak to the plasmon excitation. 53,54 The C 1s core level (at binding energy 284 eV) do not have a plasmon which indicate that this element is weakly adsorbed on the surface.…”

Strain-engineered widely tunable perfect absorption angle in black phosphorus from first principles

“…Another significant property of BP is its ability to absorb electromagnetic (EM) waves over a broad range of wavelengths, from visible to infrared [8,9,[18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36]. Furthermore, the absorption of EM waves by BP can be significantly enhanced by creating layered geometries that generate interference phenomena.…”