Ultrafast hot-electron transfer in metallic VSe2/graphene van der Waals heterostructures (Conference Presentation)

Tae Gwan Park; Byong Ki Choi; Junho Park; Jungdae Kim; Young Jun Chang; Fabian Rotermund

doi:10.1117/12.2544768

10 March 2020 Ultrafast hot-electron transfer in metallic VSe₂/graphene van der Waals heterostructures (Conference Presentation)

Tae Gwan Park, Byong Ki Choi, Junho Park, Jungdae Kim, Young Jun Chang, Fabian Rotermund

Author Affiliations +

Proceedings Volume 11278, Ultrafast Phenomena and Nanophotonics XXIV; 1127804 (2020) https://doi.org/10.1117/12.2544768
Event: SPIE OPTO, 2020, San Francisco, California, United States

Abstract

Interlayer coupling in van der Waals heterostructures exhibits unique physical properties and presents a new pathway for diverse applications in materials science and photonics. Interestingly, photo-responsivity of graphene with semiconducting transition metal dichalcogenide (TMD) can be enhanced in the UV-visible range by interlayer charge/energy transfer. However, such an effect has been studied only for semiconducting materials. In this work, we will discuss ultrafast hot-electron transfer in atomically thin metallic-layer VSe2/graphene heterostructures investigated by time-resolved pump-probe spectroscopy. Our experimental finding extends the concepts of conventional two-dimensional heterostructures to metallic-layer and can provide a new degree of freedom for designing novel functionalized materials and devices.

Conference Presentation

Citation Download Citation

Tae Gwan Park, Byong Ki Choi, Junho Park, Jungdae Kim, Young Jun Chang, and Fabian Rotermund "Ultrafast hot-electron transfer in metallic VSe₂/graphene van der Waals heterostructures (Conference Presentation)", Proc. SPIE 11278, Ultrafast Phenomena and Nanophotonics XXIV, 1127804 (10 March 2020); https://doi.org/10.1117/12.2544768

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available