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:
-
- 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:
- 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.
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
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.
@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}
}
Web of Science
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
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