Compact simulation guides subnanometer, femtosecond measures of energy transfer between quasiparticles and hot carriers at interfaces between metals and two-dimensional materials

D. Keith Roper; Gregory T. Forcherio; Drew DeJarnette

doi:10.1117/12.2238102

26 September 2016 Compact simulation guides subnanometer, femtosecond measures of energy transfer between quasiparticles and hot carriers at interfaces between metals and two-dimensional materials

D. Keith Roper, Gregory T. Forcherio, Drew DeJarnette

Author Affiliations +

Proceedings Volume 9923, Physical Chemistry of Interfaces and Nanomaterials XV; 992312 (2016) https://doi.org/10.1117/12.2238102
Event: SPIE Nanoscience + Engineering, 2016, San Diego, California, United States

Abstract

Compact computational structure-function relations are needed to examine energy transfer between confined fields and carrier dynamics at heterostructure interfaces. This work used discrete dipole approximations to analyze quasiparticle excitation and dephasing at interfaces between metals and van der Waals materials. Simulations were compared with scanning transmission electron microscopy (STEM) for energy electron loss spectroscopy (EELS) at sub-nanometer resolution and femtosecond timescale. Artifacts like direct electron-hole pair generation were avoided. Comparing simulation with experiment distinguished quasiparticle energy transfer to hot carriers at the interface, and supported development of structure-function relations between interface morphology and emergent discrete and hybrid modes.

Conference Presentation

Citation Download Citation

D. Keith Roper, Gregory T. Forcherio, and Drew DeJarnette "Compact simulation guides subnanometer, femtosecond measures of energy transfer between quasiparticles and hot carriers at interfaces between metals and two-dimensional materials", Proc. SPIE 9923, Physical Chemistry of Interfaces and Nanomaterials XV, 992312 (26 September 2016); https://doi.org/10.1117/12.2238102

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