Optical absorption and transmission in a molybdenum disulfide monolayer

Znanstveni rad - Izvorni znanstveni rad

• Autor: Zoran Rukelj; MBZ: 330912
• Autor: Antonio Štrkalj
• Autor: Vito Despoja; MBZ: 255255
• Autorova ustanova: Sveučilište u Zagrebu; Prirodoslovno-matematički fakultet; (Fizički odsjek)
• Znanstveno / umjetničko područje, polje i grana: PRIRODNE ZNANOSTI; Fizika

Sažetak (engleski)

Our recently proposed theoretical formulation [presented in D. Novko et al., Phys. Rev. B 93, 125413 (2016)] is used to study optical absorption and transmission in molybdenum disulfide (MoS2 ) monolayer as a function of incident photon energy and angle. The investigation is not focused on exploration of well-documented spin-orbit split excitons around optical absorption onset, but rather on the most intensive features in absorption spectrum in the visible and near-ultraviolet photon energy range (1.7–4 eV). It is shown that three most intensive peaks, at 2.7, 3.1, and 3.7 eV, result from transitions between Mo(d) and S(p) valence and conduction bands and that the character of their charge/current density fluctuations is intrinsically in plane, located in the molybdenum plane. This also implies that MoS2 monolayer is completely transparent when illuminated by grazing incidence p-polarized light. The validity of the presented results is supported by our effective two-band tight-binding model and finally by good agreement with some recent experimental results

• Ključne riječi (engleski): molybdenum disulfide; optical absorption; transmission
• Jezik: engleski
• Vrsta publikacije: Znanstveni rad - Izvorni znanstveni rad
• Status objave: Objavljen
• Vrsta recenzije: Recenziran - međunarodna recenzija
• Verzija publikacije: Objavljena verzija rada (izdavačev PDF)
• Naslov časopisa: Physical Review B
• Brojčani podaci: vol. 94, br. 11, 115428
• p-ISSN: 2469-9969
• DOI: https://doi.org/10.1103/PhysRevB.94.115428
• URN:NBN: urn:nbn:hr:217:668545
• Datum objave publikacije: 2016
• URL dokumenta: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.94.115428
• Vrsta resursa: Tekst
• Prava pristupa: Otvoreni pristup
• Javna napomena: © 2016 American Physical Society. Received 18 May 2016; revised manuscript received 21 August 2016; published 21 September 2016.
• Datum i vrijeme pohrane: 2020-02-23 19:54:20