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 language | English |
|---|---|
| Article number | 043110 |
| Journal | Applied Physics Letters |
| Volume | 90 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2007 |
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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 journal › Article
}
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
VL - 90
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 4
M1 - 043110
ER -