Optical absorption and disorder in delafossites

Senty, Tess R.; Haycock, Barry; Lekse, Jonathan; Matranga, Christopher; Wang, Hong; Panapitiya, Gihan; Bristow, Alan D.; Lewis, James P.

doi:10.1063/1.4991388

Title: Optical absorption and disorder in delafossites

Abstract

Here, we present compelling experimental results of the optical characteristics of transparent oxide CuGaO₂ and related CuGa_1-xFe_xO₂ (with 0.00 ≤ x ≤ 0.05) alloys, whereby the forbidden electronic transitions for CuGaO₂ become permissible in the presence of B-site (Ga sites) alloying with Fe. Our computational structural results imply a correlation between the global strain on the system and a decreased optical absorption edge. However, herein, we show that the relatively ordered CuGa_1-xFe_xO₂ (for 0.00 ≤ x ≤ 0.04) structures exhibit much weaker vis-absorption compared to the relatively disordered CuGa_0.95Fe_0.05O₂.

Authors:

Senty, Tess R. ^[1]; Haycock, Barry ^[1]; Lekse, Jonathan ^[2]; Matranga, Christopher ^[2]; Wang, Hong ^[1]; Panapitiya, Gihan ^[1]; Bristow, Alan D. ^[1]; Lewis, James P. ^[1]

West Virginia Univ., Morgantown, WV (United States)
The National Energy Technology Lab. (NETL), Pittsburgh, PA, (United States)

Publication Date:: Thu Jul 06 00:00:00 EDT 2017

Research Org.:: National Energy Technology Lab. (NETL), Morgantown, WV (United States)

Sponsoring Org.:: USDOE Office of Fossil Energy (FE)

OSTI Identifier:: 1415466

Alternate Identifier(s):: OSTI ID: 1368416

Report Number(s):: UNIV-PUB-393
Journal ID: ISSN 0003-6951; TRN: US1800828

Grant/Contract Number:: HEPC.dsr.12.29; FE0004000

Resource Type:: Accepted Manuscript

Journal Name:: Applied Physics Letters

Additional Journal Information:: Journal Volume: 111; Journal Issue: 1; Journal ID: ISSN 0003-6951

Publisher:: American Institute of Physics (AIP)

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats


                    Senty, Tess R., Haycock, Barry, Lekse, Jonathan, Matranga, Christopher, Wang, Hong, Panapitiya, Gihan, Bristow, Alan D., and Lewis, James P. Optical absorption and disorder in delafossites.  United States: N. p., 2017. 
Web.  doi:10.1063/1.4991388.

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                    Senty, Tess R., Haycock, Barry, Lekse, Jonathan, Matranga, Christopher, Wang, Hong, Panapitiya, Gihan, Bristow, Alan D., & Lewis, James P. Optical absorption and disorder in delafossites.  United States.  https://doi.org/10.1063/1.4991388

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                    Senty, Tess R., Haycock, Barry, Lekse, Jonathan, Matranga, Christopher, Wang, Hong, Panapitiya, Gihan, Bristow, Alan D., and Lewis, James P. Thu .  
"Optical absorption and disorder in delafossites".  United States.  https://doi.org/10.1063/1.4991388.  https://www.osti.gov/servlets/purl/1415466.

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@article{osti_1415466,

  title        = {Optical absorption and disorder in delafossites},

  author       = {Senty, Tess R. and Haycock, Barry and Lekse, Jonathan and Matranga, Christopher and Wang, Hong and Panapitiya, Gihan and Bristow, Alan D. and Lewis, James P.},

  abstractNote = {Here, we present compelling experimental results of the optical characteristics of transparent oxide CuGaO2 and related CuGa1-xFexO2 (with 0.00 ≤ x ≤ 0.05) alloys, whereby the forbidden electronic transitions for CuGaO2 become permissible in the presence of B-site (Ga sites) alloying with Fe. Our computational structural results imply a correlation between the global strain on the system and a decreased optical absorption edge. However, herein, we show that the relatively ordered CuGa1-xFexO2 (for 0.00 ≤ x ≤ 0.04) structures exhibit much weaker vis-absorption compared to the relatively disordered CuGa0.95Fe0.05O2.},

  doi          = {10.1063/1.4991388},

  journal      = {Applied Physics Letters},

  number       = 1,

  volume       = 111,

  place        = {United States},

  year         = {Thu Jul 06 00:00:00 EDT 2017},

  month        = {Thu Jul 06 00:00:00 EDT 2017}

}

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Works referencing / citing this record:

Enhanced hot electron lifetimes in quantum wells with inhibited phonon coupling
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Scientific Reports, Vol. 8, Issue 1
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Title: Optical absorption and disorder in delafossites

Abstract

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