Optical properties of PbSe nanocrystal quantum dots under pressure

Kirill K. Zhuravlev, Jeffrey M. Pietryga, Robert K. Sander, Richard D Schaller

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

The optical properties of PbSe nanocrystal quantum dots (NQDs) were studied as a function of applied hydrostatic pressure over the range from ambient to 5.4 GPa. PbSe NQDs exhibit an energy gap that is dominated by quantum confinement. Despite such strong confinement, the authors find that the energy gaps of 3, 5, and 7 nm diameter PbSe NQDs change monotonically with pressure with a dependence that is almost entirely determined by the bulk deformation potential. The sizable dependence of the NQD energy gap with pressure invites applications in the areas of high speed pressure sensing and tunable IR lasers.

Original languageEnglish
Article number043110
JournalApplied Physics Letters
Volume90
Issue number4
DOIs
Publication statusPublished - 2007

Fingerprint

nanocrystals
quantum dots
optical properties
tunable lasers
hydrostatic pressure
infrared lasers
high speed

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Optical properties of PbSe nanocrystal quantum dots under pressure. / Zhuravlev, Kirill K.; Pietryga, Jeffrey M.; Sander, Robert K.; Schaller, Richard D.

In: Applied Physics Letters, Vol. 90, No. 4, 043110, 2007.

Research output: Contribution to journalArticle

Zhuravlev, Kirill K. ; Pietryga, Jeffrey M. ; Sander, Robert K. ; Schaller, Richard D. / Optical properties of PbSe nanocrystal quantum dots under pressure. In: Applied Physics Letters. 2007 ; Vol. 90, No. 4.
@article{04317b62fe0e47d2a5f8c71961144a8e,
title = "Optical properties of PbSe nanocrystal quantum dots under pressure",
abstract = "The optical properties of PbSe nanocrystal quantum dots (NQDs) were studied as a function of applied hydrostatic pressure over the range from ambient to 5.4 GPa. PbSe NQDs exhibit an energy gap that is dominated by quantum confinement. Despite such strong confinement, the authors find that the energy gaps of 3, 5, and 7 nm diameter PbSe NQDs change monotonically with pressure with a dependence that is almost entirely determined by the bulk deformation potential. The sizable dependence of the NQD energy gap with pressure invites applications in the areas of high speed pressure sensing and tunable IR lasers.",
author = "Zhuravlev, {Kirill K.} and Pietryga, {Jeffrey M.} and Sander, {Robert K.} and Schaller, {Richard D}",
year = "2007",
doi = "10.1063/1.2431777",
language = "English",
volume = "90",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics Publising LLC",
number = "4",

}

TY - JOUR

T1 - Optical properties of PbSe nanocrystal quantum dots under pressure

AU - Zhuravlev, Kirill K.

AU - Pietryga, Jeffrey M.

AU - Sander, Robert K.

AU - Schaller, Richard D

PY - 2007

Y1 - 2007

N2 - The optical properties of PbSe nanocrystal quantum dots (NQDs) were studied as a function of applied hydrostatic pressure over the range from ambient to 5.4 GPa. PbSe NQDs exhibit an energy gap that is dominated by quantum confinement. Despite such strong confinement, the authors find that the energy gaps of 3, 5, and 7 nm diameter PbSe NQDs change monotonically with pressure with a dependence that is almost entirely determined by the bulk deformation potential. The sizable dependence of the NQD energy gap with pressure invites applications in the areas of high speed pressure sensing and tunable IR lasers.

AB - The optical properties of PbSe nanocrystal quantum dots (NQDs) were studied as a function of applied hydrostatic pressure over the range from ambient to 5.4 GPa. PbSe NQDs exhibit an energy gap that is dominated by quantum confinement. Despite such strong confinement, the authors find that the energy gaps of 3, 5, and 7 nm diameter PbSe NQDs change monotonically with pressure with a dependence that is almost entirely determined by the bulk deformation potential. The sizable dependence of the NQD energy gap with pressure invites applications in the areas of high speed pressure sensing and tunable IR lasers.

UR - http://www.scopus.com/inward/record.url?scp=33846570997&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33846570997&partnerID=8YFLogxK

U2 - 10.1063/1.2431777

DO - 10.1063/1.2431777

M3 - Article

AN - SCOPUS:33846570997

VL - 90

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 4

M1 - 043110

ER -