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Title: Moving the Plasmon of LaB6 from IR to Near-IR via Eu-Doping

Abstract

Lanthanum hexaboride (LaB6) has become a material of intense interest in recent years due to its low work function, thermal stability and intriguing optical properties. LaB6 is also a semiconductor plasmonic material with the ability to support strong plasmon modes. Some of these modes uniquely stretch into the infrared, allowing the material to absorb around 1000 nm, which is of great interest to the window industry. It is well known that the plasmon of LaB6 can be tuned by controlling particle size and shape. In this work, we explore the options available to further tune the optical properties by describing how metal vacancies and Eu doping concentrations are additional knobs for tuning the absorbance from the near-IR to far-IR in La1-xEuxB6(x = 0, 0.2, 0.5, 0.8, and 1.0). We also report that there is a direct correlation between Eu concentration and metal vacancies within the Eu1-xLaxB6.

Authors:
 [1];  [1];  [1];  [1];  [1]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Contributing Org.:
Tracy Mattox; D. Coffman; Inwhan Roh; Christopher Sims; Jeffrey Urban
OSTI Identifier:
1465430
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Materials
Additional Journal Information:
Journal Volume: 11; Journal Issue: 2; Related Information: © 2018 by the authors.; Journal ID: ISSN 1996-1944
Publisher:
MDPI
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; plasmon; hexaboride; doping; lanthanum hexaboride; LaB6

Citation Formats

Mattox, Tracy M., Coffman, D. Keith, Roh, Inwah, Sims, Christopher, and Urban, Jeffrey J. Moving the Plasmon of LaB6 from IR to Near-IR via Eu-Doping. United States: N. p., 2018. Web. doi:10.3390/ma11020226.
Mattox, Tracy M., Coffman, D. Keith, Roh, Inwah, Sims, Christopher, & Urban, Jeffrey J. Moving the Plasmon of LaB6 from IR to Near-IR via Eu-Doping. United States. doi:10.3390/ma11020226.
Mattox, Tracy M., Coffman, D. Keith, Roh, Inwah, Sims, Christopher, and Urban, Jeffrey J. Thu . "Moving the Plasmon of LaB6 from IR to Near-IR via Eu-Doping". United States. doi:10.3390/ma11020226. https://www.osti.gov/servlets/purl/1465430.
@article{osti_1465430,
title = {Moving the Plasmon of LaB6 from IR to Near-IR via Eu-Doping},
author = {Mattox, Tracy M. and Coffman, D. Keith and Roh, Inwah and Sims, Christopher and Urban, Jeffrey J.},
abstractNote = {Lanthanum hexaboride (LaB6) has become a material of intense interest in recent years due to its low work function, thermal stability and intriguing optical properties. LaB6 is also a semiconductor plasmonic material with the ability to support strong plasmon modes. Some of these modes uniquely stretch into the infrared, allowing the material to absorb around 1000 nm, which is of great interest to the window industry. It is well known that the plasmon of LaB6 can be tuned by controlling particle size and shape. In this work, we explore the options available to further tune the optical properties by describing how metal vacancies and Eu doping concentrations are additional knobs for tuning the absorbance from the near-IR to far-IR in La1-xEuxB6(x = 0, 0.2, 0.5, 0.8, and 1.0). We also report that there is a direct correlation between Eu concentration and metal vacancies within the Eu1-xLaxB6.},
doi = {10.3390/ma11020226},
journal = {Materials},
number = 2,
volume = 11,
place = {United States},
year = {2018},
month = {2}
}

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Cited by: 3 works
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    Works referencing / citing this record:

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