Stimulated emission in ZnO nanostructures: A time-resolved study

Aleksandra B. Djurišić; Wai Ming Kwok; Yu Hang Leung; David L. Phillips; Wai Kin Chan

doi:10.1021/jp0528055

Stimulated emission in ZnO nanostructures: A time-resolved study

Aleksandra B. Djurišić, Wai Ming Kwok, Yu Hang Leung, David L. Phillips, Wai Kin Chan

Research output: Journal article publication › Journal article › Academic research › peer-review

39 Citations (Scopus)

Abstract

Stimulated emission was studied using time-integrated and time-resolved photoluminescence in ZnO comb, tetrapod, and rod nanostructures. All the measurements were performed on ensembles of the nanostructures. The nanostructures were fabricated by vapor deposition (combs, tetrapods) and hydrothermal methods (rods). While stimulated emission was detected in all of the nanostructures, significant differences in the behavior of the stimulated emission, as well as the lasing threshold power, were found for different morphologies. The differences in the time evolution of the lasing spectra were particularly pronounced. The observed differences in the stimulated emission spectra of the three types of nanostructures in both exciton-exciton scattering and electron-hole plasma regimes are discussed.

Original language	English
Pages (from-to)	19228-19233
Number of pages	6
Journal	Journal of Physical Chemistry B
Volume	109
Issue number	41
DOIs	https://doi.org/10.1021/jp0528055
Publication status	Published - 20 Oct 2005
Externally published	Yes

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Surfaces, Coatings and Films
Materials Chemistry

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10.1021/jp0528055

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title = "Stimulated emission in ZnO nanostructures: A time-resolved study",

abstract = "Stimulated emission was studied using time-integrated and time-resolved photoluminescence in ZnO comb, tetrapod, and rod nanostructures. All the measurements were performed on ensembles of the nanostructures. The nanostructures were fabricated by vapor deposition (combs, tetrapods) and hydrothermal methods (rods). While stimulated emission was detected in all of the nanostructures, significant differences in the behavior of the stimulated emission, as well as the lasing threshold power, were found for different morphologies. The differences in the time evolution of the lasing spectra were particularly pronounced. The observed differences in the stimulated emission spectra of the three types of nanostructures in both exciton-exciton scattering and electron-hole plasma regimes are discussed.",

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T1 - Stimulated emission in ZnO nanostructures: A time-resolved study

AU - Djurišić, Aleksandra B.

AU - Kwok, Wai Ming

AU - Leung, Yu Hang

AU - Phillips, David L.

AU - Chan, Wai Kin

PY - 2005/10/20

Y1 - 2005/10/20

N2 - Stimulated emission was studied using time-integrated and time-resolved photoluminescence in ZnO comb, tetrapod, and rod nanostructures. All the measurements were performed on ensembles of the nanostructures. The nanostructures were fabricated by vapor deposition (combs, tetrapods) and hydrothermal methods (rods). While stimulated emission was detected in all of the nanostructures, significant differences in the behavior of the stimulated emission, as well as the lasing threshold power, were found for different morphologies. The differences in the time evolution of the lasing spectra were particularly pronounced. The observed differences in the stimulated emission spectra of the three types of nanostructures in both exciton-exciton scattering and electron-hole plasma regimes are discussed.

AB - Stimulated emission was studied using time-integrated and time-resolved photoluminescence in ZnO comb, tetrapod, and rod nanostructures. All the measurements were performed on ensembles of the nanostructures. The nanostructures were fabricated by vapor deposition (combs, tetrapods) and hydrothermal methods (rods). While stimulated emission was detected in all of the nanostructures, significant differences in the behavior of the stimulated emission, as well as the lasing threshold power, were found for different morphologies. The differences in the time evolution of the lasing spectra were particularly pronounced. The observed differences in the stimulated emission spectra of the three types of nanostructures in both exciton-exciton scattering and electron-hole plasma regimes are discussed.

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DO - 10.1021/jp0528055

M3 - Journal article

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EP - 19233

JO - Journal of Physical Chemistry B

JF - Journal of Physical Chemistry B

IS - 41

ER -

Stimulated emission in ZnO nanostructures: A time-resolved study

Abstract

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