Synthesis of Type I PbSe/CdSe Dot-on-Plate Heterostructures with Near-Infrared Emission

doi:https://doi.org/10.1021/jacs.8b13794

Title: Synthesis of Type I PbSe/CdSe Dot-on-Plate Heterostructures with Near-Infrared Emission

Abstract

Zero-dimensional PbSe quantum dots are heterogeneously nucleated and grown onto two-dimensional zincblende CdSe nanoplatelets. Electron microscopy shows ad-grown dots predominantly decorate edges and corners of the nanoplatelets. Spectroscopic characterizations relate type I electronic alignment as demonstrated via photoluminescence excitation spectroscopy enhancement of near-infrared emission. Transient photoluminescence and absorption convey ultrafast transfer of excitons to the lower energy semiconductor dots. Furthermore these structures combine benefits of large absorption cross sections of nanoplatelets and efficient near-infrared emission of PbSe with quantum confinement tuning of energy gap.

Authors:

Williams, Kali R. ^[1];

^[2]; Watkins, Nicolas E. ^[1]; Rui, Xue ^[3];

^[1]; Klie, Robert F. ^[3];

^[4]

Northwestern Univ., Evanston, IL (United States)
Argonne National Lab. (ANL), Lemont, IL (United States)
Univ. of Illinois at Chicago, Chicago, IL (United States)
Northwestern Univ., Evanston, IL (United States); Argonne National Lab. (ANL), Lemont, IL (United States)

Publication Date:: 2019-03-18

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)

OSTI Identifier:: 1510305

Grant/Contract Number:: AC02-06CH11357

Resource Type:: Journal Article: Accepted Manuscript

Journal Name:: Journal of the American Chemical Society

Additional Journal Information:: Journal Volume: 141; Journal Issue: 13; Journal ID: ISSN 0002-7863

Publisher:: American Chemical Society (ACS)

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

Citation Formats


                    Williams, Kali R., Diroll, Benjamin T., Watkins, Nicolas E., Rui, Xue, Brumberg, Alexandra, Klie, Robert F., and Schaller, Richard D. Synthesis of Type I PbSe/CdSe Dot-on-Plate Heterostructures with Near-Infrared Emission.  United States: N. p., 2019. 
        Web.  doi:10.1021/jacs.8b13794.

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                    Williams, Kali R., Diroll, Benjamin T., Watkins, Nicolas E., Rui, Xue, Brumberg, Alexandra, Klie, Robert F., & Schaller, Richard D. Synthesis of Type I PbSe/CdSe Dot-on-Plate Heterostructures with Near-Infrared Emission.  United States.  https://doi.org/10.1021/jacs.8b13794

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                    Williams, Kali R., Diroll, Benjamin T., Watkins, Nicolas E., Rui, Xue, Brumberg, Alexandra, Klie, Robert F., and Schaller, Richard D. Mon .  
        "Synthesis of Type I PbSe/CdSe Dot-on-Plate Heterostructures with Near-Infrared Emission".  United States.  https://doi.org/10.1021/jacs.8b13794.  https://www.osti.gov/servlets/purl/1510305.

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@article{osti_1510305,

  title        = {Synthesis of Type I PbSe/CdSe Dot-on-Plate Heterostructures with Near-Infrared Emission},

  author       = {Williams, Kali R. and Diroll, Benjamin T. and Watkins, Nicolas E. and Rui, Xue and Brumberg, Alexandra and Klie, Robert F. and Schaller, Richard D.},

  abstractNote = {Zero-dimensional PbSe quantum dots are heterogeneously nucleated and grown onto two-dimensional zincblende CdSe nanoplatelets. Electron microscopy shows ad-grown dots predominantly decorate edges and corners of the nanoplatelets. Spectroscopic characterizations relate type I electronic alignment as demonstrated via photoluminescence excitation spectroscopy enhancement of near-infrared emission. Transient photoluminescence and absorption convey ultrafast transfer of excitons to the lower energy semiconductor dots. Furthermore these structures combine benefits of large absorption cross sections of nanoplatelets and efficient near-infrared emission of PbSe with quantum confinement tuning of energy gap.},

  doi          = {10.1021/jacs.8b13794},

  url          = {https://www.osti.gov/biblio/1510305},
  journal      = {Journal of the American Chemical Society},

  issn         = {0002-7863},

  number       = 13,

  volume       = 141,

  place        = {United States},

  year         = {2019},

  month        = {3}

}

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https://doi.org/10.1021/jacs.8b13794

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Works referencing / citing this record:

Polarized near-infrared intersubband absorptions in CdSe colloidal quantum wells
journal, October 2019

Diroll, Benjamin T.; Chen, Menglu; Coropceanu, Igor
Nature Communications, Vol. 10, Issue 1
https://doi.org/10.1038/s41467-019-12503-z

2D GeSe/SnS ₂ (SnSe ₂ ) broken-gap heterostructures for tunnel field-effect transistors applications
journal, August 2019

Wang, Tianxing; Zhang, Qian; Li, Jingbo
Journal of Physics D: Applied Physics, Vol. 52, Issue 45
https://doi.org/10.1088/1361-6463/ab37c5

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Title: Synthesis of Type I PbSe/CdSe Dot-on-Plate Heterostructures with Near-Infrared Emission

Abstract

Citation Formats

Polarized near-infrared intersubband absorptions in CdSe colloidal quantum wells journal, October 2019

2D GeSe/SnS 2 (SnSe 2 ) broken-gap heterostructures for tunnel field-effect transistors applications journal, August 2019

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journal, October 2019

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