Publication:
Broadband optical properties of atomically thin PtS2 and ptse2

Дата
2021
Авторы
Ermolaev, G. A.
Voronin, K. V.
Tatmyshevskiy, M. K.
Mazitov, A. B.
Romanov, R. I.
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Научные группы
Организационные подразделения
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Институт лазерных и плазменных технологий
Стратегическая цель Института ЛаПлаз – стать ведущей научной школой и ядром развития инноваций по лазерным, плазменным, радиационным и ускорительным технологиям, с уникальными образовательными программами, востребованными на российском и мировом рынке образовательных услуг.
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Аннотация
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.Noble transition metal dichalcogenides (TMDCs) such as PtS2 and PtSe2 show significant potential in a wide range of optoelectronic and photonic applications. Noble TMDCs, unlike standard TMDCs such as MoS2 and WS2, operate in the ultrawide spectral range from ultraviolet to mid-infrared wavelengths; however, their properties remain largely unexplored. Here, we measured the broadband (245–3300 nm) optical constants of ultrathin PtS2 and PtSe2 films to eliminate this gap and provide a foundation for optoelectronic device simulation. We discovered their broadband absorption and high refractive index both theoretically and experimentally. Based on first-principle calculations, we also predicted their giant out-of-plane optical anisotropy for monocrystals. As a practical illustration of the obtained optical properties, we demonstrated surface plasmon resonance biosensors with PtS2 or PtSe2 functional layers, which dramatically improves sensor sensitivity by 60 and 30%, respectively.
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Broadband optical properties of atomically thin PtS2 and ptse2 / Ermolaev, G.A. [et al.] // Nanomaterials. - 2021. - 11. - № 12. - 10.3390/nano11123269
URI
https://www.doi.org/10.3390/nano11123269
 https://www.scopus.com/record/display.uri?eid=2-s2.0-85120319552&origin=resultslist
 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000736574900001
 https://openrepository.mephi.ru/handle/123456789/25066
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