Nanophotonic energy up conversion using ZnO nanorod double-quantum-well structures

T. Yatsui; S. Sangu; K. Kobayashi; T. Kawazoe; M. Ohtsu; Jinkyoung Yoo; G. C. Yi

doi:10.1063/1.3090491

Nanophotonic energy up conversion using ZnO nanorod double-quantum-well structures

T. Yatsui
, S. Sangu
, K. Kobayashi
, T. Kawazoe
, M. Ohtsu
, Jinkyoung Yoo
, G. C. Yi

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

We report on near-field spectroscopy of ZnO/ZnMgO nanorod double-quantum-well structures (DQWs) for a nanometer-scale photonic device. We observed energy up conversion assisted by the absorption of phonons generated in the ZnO nanorod DQWs. Theoretical calculation of the coherent excitonic excitation of the population with incoherent phonon coupling agrees well with the obtained experimental power dependence of the up conversion efficiency. It should result in an increase in the efficiency of devices, such as photodetectors, solar cells, and so on.

Original language	English
Article number	083113
Journal	Applied Physics Letters
Volume	94
Issue number	8
DOIs	https://doi.org/10.1063/1.3090491
State	Published - Mar 6 2009
Externally published	Yes

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title = "Nanophotonic energy up conversion using ZnO nanorod double-quantum-well structures",

abstract = "We report on near-field spectroscopy of ZnO/ZnMgO nanorod double-quantum-well structures (DQWs) for a nanometer-scale photonic device. We observed energy up conversion assisted by the absorption of phonons generated in the ZnO nanorod DQWs. Theoretical calculation of the coherent excitonic excitation of the population with incoherent phonon coupling agrees well with the obtained experimental power dependence of the up conversion efficiency. It should result in an increase in the efficiency of devices, such as photodetectors, solar cells, and so on.",

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T1 - Nanophotonic energy up conversion using ZnO nanorod double-quantum-well structures

AU - Yatsui, T.

AU - Sangu, S.

AU - Kobayashi, K.

AU - Kawazoe, T.

AU - Ohtsu, M.

AU - Yoo, Jinkyoung

AU - Yi, G. C.

PY - 2009/3/6

Y1 - 2009/3/6

N2 - We report on near-field spectroscopy of ZnO/ZnMgO nanorod double-quantum-well structures (DQWs) for a nanometer-scale photonic device. We observed energy up conversion assisted by the absorption of phonons generated in the ZnO nanorod DQWs. Theoretical calculation of the coherent excitonic excitation of the population with incoherent phonon coupling agrees well with the obtained experimental power dependence of the up conversion efficiency. It should result in an increase in the efficiency of devices, such as photodetectors, solar cells, and so on.

AB - We report on near-field spectroscopy of ZnO/ZnMgO nanorod double-quantum-well structures (DQWs) for a nanometer-scale photonic device. We observed energy up conversion assisted by the absorption of phonons generated in the ZnO nanorod DQWs. Theoretical calculation of the coherent excitonic excitation of the population with incoherent phonon coupling agrees well with the obtained experimental power dependence of the up conversion efficiency. It should result in an increase in the efficiency of devices, such as photodetectors, solar cells, and so on.

UR - https://www.scopus.com/pages/publications/61349194358

U2 - 10.1063/1.3090491

DO - 10.1063/1.3090491

M3 - Article

SN - 0003-6951

VL - 94

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 8

M1 - 083113

ER -

Nanophotonic energy up conversion using ZnO nanorod double-quantum-well structures

Abstract

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