Orbital Character Effects in the Photon Energy and Polarization Dependence of Pure C60 Photoemission
Abstract
We report that recent direct experimental observation of multiple highly dispersive C60 valence bands has allowed for a detailed analysis of the unusual photoemission traits of these features through photon energy- and polarization-dependent measurements. Previously obscured dispersions and strong photoemission traits are now revealed by specific light polarizations. The observed intensity effects prove the locking in place of the C60 molecules at low temperatures and the existence of an orientational order imposed by the substrate chosen. Most importantly, photon energy- and polarization-dependent effects are shown to be intimately linked with the orbital character of the C60 band manifolds which allow for a more precise determination of the orbital character within the third highest occupied molecular orbital (HOMO-2). In conclusion, our observations and analysis provide important considerations for the connection between molecular and crystalline C60 electronic structure, past and future band structure studies, and for increasingly popular C60 electronic device applications, especially those making use of heterostructures.
- Authors:
-
- Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- California State Univ. (CalState), Long Beach, CA (United States)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)
- Publication Date:
- Research Org.:
- California State Univ. (CalState), Long Beach, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
- OSTI Identifier:
- 1782491
- Alternate Identifier(s):
- OSTI ID: 1581081; OSTI ID: 1595116
- Grant/Contract Number:
- SC0018154; AC02-05CH11231
- Resource Type:
- Accepted Manuscript
- Journal Name:
- ACS Nano
- Additional Journal Information:
- Journal Volume: 13; Journal Issue: 11; Journal ID: ISSN 1936-0851
- Publisher:
- American Chemical Society (ACS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 77 NANOSCIENCE AND NANOTECHNOLOGY; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; C60; angle resolved photoemission spectroscopy; polarization-dependent photoemission; molecular solid; orbital character; photoemission; light; energy; polarization; oscillation; C60, angle resolved photoemission spectroscopy, polarization-dependent photoemission, molecular solid, orbital character
Citation Formats
Latzke, Drew W., Ojeda-Aristizabal, Claudia, Denlinger, Jonathan D., Reno, Ryan, Zettl, Alex, and Lanzara, Alessandra. Orbital Character Effects in the Photon Energy and Polarization Dependence of Pure C60 Photoemission. United States: N. p., 2019.
Web. doi:10.1021/acsnano.9b04536.
Latzke, Drew W., Ojeda-Aristizabal, Claudia, Denlinger, Jonathan D., Reno, Ryan, Zettl, Alex, & Lanzara, Alessandra. Orbital Character Effects in the Photon Energy and Polarization Dependence of Pure C60 Photoemission. United States. https://doi.org/10.1021/acsnano.9b04536
Latzke, Drew W., Ojeda-Aristizabal, Claudia, Denlinger, Jonathan D., Reno, Ryan, Zettl, Alex, and Lanzara, Alessandra. Tue .
"Orbital Character Effects in the Photon Energy and Polarization Dependence of Pure C60 Photoemission". United States. https://doi.org/10.1021/acsnano.9b04536. https://www.osti.gov/servlets/purl/1782491.
@article{osti_1782491,
title = {Orbital Character Effects in the Photon Energy and Polarization Dependence of Pure C60 Photoemission},
author = {Latzke, Drew W. and Ojeda-Aristizabal, Claudia and Denlinger, Jonathan D. and Reno, Ryan and Zettl, Alex and Lanzara, Alessandra},
abstractNote = {We report that recent direct experimental observation of multiple highly dispersive C60 valence bands has allowed for a detailed analysis of the unusual photoemission traits of these features through photon energy- and polarization-dependent measurements. Previously obscured dispersions and strong photoemission traits are now revealed by specific light polarizations. The observed intensity effects prove the locking in place of the C60 molecules at low temperatures and the existence of an orientational order imposed by the substrate chosen. Most importantly, photon energy- and polarization-dependent effects are shown to be intimately linked with the orbital character of the C60 band manifolds which allow for a more precise determination of the orbital character within the third highest occupied molecular orbital (HOMO-2). In conclusion, our observations and analysis provide important considerations for the connection between molecular and crystalline C60 electronic structure, past and future band structure studies, and for increasingly popular C60 electronic device applications, especially those making use of heterostructures.},
doi = {10.1021/acsnano.9b04536},
journal = {ACS Nano},
number = 11,
volume = 13,
place = {United States},
year = {2019},
month = {10}
}
Web of Science
Figures / Tables:

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Works referencing / citing this record:
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Figures / Tables found in this record: