Surface plasmon driven near- and midinfrared photoconductivity in ligand-free ITO nanocrystal films

Boyuk, Dmitriy S.; Hu, Weize; Hui, Ho Yee; Filler, Michael A.

doi:10.1116/1.5139310

Title: Surface plasmon driven near- and midinfrared photoconductivity in ligand-free ITO nanocrystal films

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Abstract

Semiconductor nanocrystals (NCs) offer exciting opportunities to deploy infrared optoelectronic technology in a variety of applications that are off-limits to conventional single-crystalline materials. However, the performance and stability of state-of-the-art NC-based devices strongly depend on the details of the NC surface and its passivating ligands. Here, the authors use indium tin oxide NC films stripped of organic ligands and conformally coated with Al₂O₃ to show that absorption enabled by infrared localized surface plasmon resonances permit infrared photoconduction. For Au electrodes, these metallic NC films exhibit stable photoconductive performance over months in ambient and under electrical stress.

Authors:

Boyuk, Dmitriy S. ^[1]; Hu, Weize ^[1]; Hui, Ho Yee ^[1];

^[1]

Georgia Inst. of Technology, Atlanta, GA (United States)

Publication Date:: 2020-02-25

Research Org.:: Georgia Institute of Technology, Atlanta, GA (United States)

Sponsoring Org.:: USDOE Office of Science (SC)

OSTI Identifier:: 1802418

Alternate Identifier(s):: OSTI ID: 1601516

Grant/Contract Number:: SC0012577

Resource Type:: Accepted Manuscript

Journal Name:: Journal of Vacuum Science and Technology A

Additional Journal Information:: Journal Volume: 38; Journal Issue: 2; Journal ID: ISSN 0734-2101

Publisher:: American Vacuum Society / AIP

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; Materials Science; Physics

Citation Formats


                    Boyuk, Dmitriy S., Hu, Weize, Hui, Ho Yee, and Filler, Michael A. Surface plasmon driven near- and midinfrared photoconductivity in ligand-free ITO nanocrystal films.  United States: N. p., 2020. 
Web.  doi:10.1116/1.5139310.

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                    Boyuk, Dmitriy S., Hu, Weize, Hui, Ho Yee, & Filler, Michael A. Surface plasmon driven near- and midinfrared photoconductivity in ligand-free ITO nanocrystal films.  United States.  https://doi.org/10.1116/1.5139310

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                    Boyuk, Dmitriy S., Hu, Weize, Hui, Ho Yee, and Filler, Michael A. Tue .  
"Surface plasmon driven near- and midinfrared photoconductivity in ligand-free ITO nanocrystal films".  United States.  https://doi.org/10.1116/1.5139310.  https://www.osti.gov/servlets/purl/1802418.

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@article{osti_1802418,

  title        = {Surface plasmon driven near- and midinfrared photoconductivity in ligand-free ITO nanocrystal films},

  author       = {Boyuk, Dmitriy S. and Hu, Weize and Hui, Ho Yee and Filler, Michael A.},

  abstractNote = {Semiconductor nanocrystals (NCs) offer exciting opportunities to deploy infrared optoelectronic technology in a variety of applications that are off-limits to conventional single-crystalline materials. However, the performance and stability of state-of-the-art NC-based devices strongly depend on the details of the NC surface and its passivating ligands. Here, the authors use indium tin oxide NC films stripped of organic ligands and conformally coated with Al2O3 to show that absorption enabled by infrared localized surface plasmon resonances permit infrared photoconduction. For Au electrodes, these metallic NC films exhibit stable photoconductive performance over months in ambient and under electrical stress.},

  doi          = {10.1116/1.5139310},

  journal      = {Journal of Vacuum Science and Technology A},

  number       = 2,

  volume       = 38,

  place        = {United States},

  year         = {2020},

  month        = {2}

}

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