Quasi-two-dimensional excitons in (Zn,Cd)Se/ZnSe quantum wells: Reduced excitonLO-phonon coupling due to confinement effects

N. T. Pelekanos; J. Ding; M. Hagerott; A. V. Nurmikko; H. Luo; N. Samarth; J. K. Furdyna

doi:10.1103/PhysRevB.45.6037

Quasi-two-dimensional excitons in (Zn,Cd)Se/ZnSe quantum wells: Reduced excitonLO-phonon coupling due to confinement effects

N. T. Pelekanos
, J. Ding
, M. Hagerott
, A. V. Nurmikko
, H. Luo
, N. Samarth
, J. K. Furdyna

Physics

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

197 Scopus citations

Abstract

Quasi-two-dimensional (2D) excitons in (Zn,Cd) Se/ZnSe quantum wells were investigated. We observed a confinement-induced enhancement of the exciton binding energy to a value greater than the longitudinal-optical (LO) -phonon energy. This unusual condition results in an effective reduction of the excitonLO-phonon coupling. As a consequence, excitonic absorption features in this quantum-well system are well preserved to room temperature and beyond.

Original language	English (US)
Pages (from-to)	6037-6042
Number of pages	6
Journal	Physical Review B
Volume	45
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevB.45.6037
State	Published - 1992

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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10.1103/PhysRevB.45.6037

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abstract = "Quasi-two-dimensional (2D) excitons in (Zn,Cd) Se/ZnSe quantum wells were investigated. We observed a confinement-induced enhancement of the exciton binding energy to a value greater than the longitudinal-optical (LO) -phonon energy. This unusual condition results in an effective reduction of the excitonLO-phonon coupling. As a consequence, excitonic absorption features in this quantum-well system are well preserved to room temperature and beyond.",

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doi = "10.1103/PhysRevB.45.6037",

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T1 - Quasi-two-dimensional excitons in (Zn,Cd)Se/ZnSe quantum wells

T2 - Reduced excitonLO-phonon coupling due to confinement effects

AU - Pelekanos, N. T.

AU - Ding, J.

AU - Hagerott, M.

AU - Nurmikko, A. V.

AU - Luo, H.

AU - Samarth, N.

AU - Furdyna, J. K.

PY - 1992

Y1 - 1992

N2 - Quasi-two-dimensional (2D) excitons in (Zn,Cd) Se/ZnSe quantum wells were investigated. We observed a confinement-induced enhancement of the exciton binding energy to a value greater than the longitudinal-optical (LO) -phonon energy. This unusual condition results in an effective reduction of the excitonLO-phonon coupling. As a consequence, excitonic absorption features in this quantum-well system are well preserved to room temperature and beyond.

AB - Quasi-two-dimensional (2D) excitons in (Zn,Cd) Se/ZnSe quantum wells were investigated. We observed a confinement-induced enhancement of the exciton binding energy to a value greater than the longitudinal-optical (LO) -phonon energy. This unusual condition results in an effective reduction of the excitonLO-phonon coupling. As a consequence, excitonic absorption features in this quantum-well system are well preserved to room temperature and beyond.

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UR - https://www.scopus.com/pages/publications/0000774937#tab=citedBy

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DO - 10.1103/PhysRevB.45.6037

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EP - 6042

JO - Physical Review B

JF - Physical Review B

IS - 11

ER -

Quasi-two-dimensional excitons in (Zn,Cd)Se/ZnSe quantum wells: Reduced excitonLO-phonon coupling due to confinement effects

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