Non-linear kinetic model for oscillatory relaxation of the photovoltage effect on a Si(111)7 × 7 surface

M. Ogawa; R. Y. Liu; C. H. Lin; S. Yamamoto; R. Yukawa; R. Hobara; S. J. Tang; I. Matsuda

doi:10.1016/j.susc.2014.01.014

Non-linear kinetic model for oscillatory relaxation of the photovoltage effect on a Si(111)7 × 7 surface

M. Ogawa, R. Y. Liu, C. H. Lin, S. Yamamoto, R. Yukawa, R. Hobara, S. J. Tang, I. Matsuda

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

4 Citations (Scopus)

Abstract

Oscillatory relaxation of surface photovoltage has been observed by time-resolved photoemission spectroscopy on a Si(111)7 × 7 surface with a temporal period of several tens of nanoseconds. The oscillation was reproduced by solving non-linear Master equations that describe surface recombination of electron-hole pairs associated with the formation of exciton-like states at the surface. Appearance of non-linear phenomena is naturally expected by the model when high density photo-excited carriers are generated by the high power laser pulse.

Original language	English
Pages (from-to)	70-75
Number of pages	6
Journal	Surface Science
Volume	624
DOIs	https://doi.org/10.1016/j.susc.2014.01.014
Publication status	Published - 2014 Jun
Externally published	Yes

Keywords

Carrier dynamics
Semiconductor surface
Surface photovoltage
Synchrotron radiation
Time-resolved photoemission

ASJC Scopus subject areas

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/j.susc.2014.01.014

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@article{213232d0f76e4589ad395003607e861d,

title = "Non-linear kinetic model for oscillatory relaxation of the photovoltage effect on a Si(111)7 × 7 surface",

abstract = "Oscillatory relaxation of surface photovoltage has been observed by time-resolved photoemission spectroscopy on a Si(111)7 × 7 surface with a temporal period of several tens of nanoseconds. The oscillation was reproduced by solving non-linear Master equations that describe surface recombination of electron-hole pairs associated with the formation of exciton-like states at the surface. Appearance of non-linear phenomena is naturally expected by the model when high density photo-excited carriers are generated by the high power laser pulse.",

keywords = "Carrier dynamics, Semiconductor surface, Surface photovoltage, Synchrotron radiation, Time-resolved photoemission",

author = "M. Ogawa and Liu, {R. Y.} and Lin, {C. H.} and S. Yamamoto and R. Yukawa and R. Hobara and Tang, {S. J.} and I. Matsuda",

note = "Funding Information: H. Akiyama, T. Suemoto, and T. Kato are gratefully acknowledged for valuable discussions. S. Kitagawa is appreciated for experimental supports. This work was partly supported by JSPS ( KAKENHI 23560020 ). This work was performed using facilities of the Synchrotron Radiation Research Organization, The University of Tokyo (Proposal No. 7401 for 2009–2012). This research was partially supported by the National Science Council of Taiwan (Grant No. NSC 98-2112-M-007-017-MY3 ) for S.J.T.",

year = "2014",

month = jun,

doi = "10.1016/j.susc.2014.01.014",

language = "English",

volume = "624",

pages = "70--75",

journal = "Surface Science",

issn = "0039-6028",

publisher = "Elsevier",

}

TY - JOUR

T1 - Non-linear kinetic model for oscillatory relaxation of the photovoltage effect on a Si(111)7 × 7 surface

AU - Ogawa, M.

AU - Liu, R. Y.

AU - Lin, C. H.

AU - Yamamoto, S.

AU - Yukawa, R.

AU - Hobara, R.

AU - Tang, S. J.

AU - Matsuda, I.

N1 - Funding Information: H. Akiyama, T. Suemoto, and T. Kato are gratefully acknowledged for valuable discussions. S. Kitagawa is appreciated for experimental supports. This work was partly supported by JSPS ( KAKENHI 23560020 ). This work was performed using facilities of the Synchrotron Radiation Research Organization, The University of Tokyo (Proposal No. 7401 for 2009–2012). This research was partially supported by the National Science Council of Taiwan (Grant No. NSC 98-2112-M-007-017-MY3 ) for S.J.T.

PY - 2014/6

Y1 - 2014/6

N2 - Oscillatory relaxation of surface photovoltage has been observed by time-resolved photoemission spectroscopy on a Si(111)7 × 7 surface with a temporal period of several tens of nanoseconds. The oscillation was reproduced by solving non-linear Master equations that describe surface recombination of electron-hole pairs associated with the formation of exciton-like states at the surface. Appearance of non-linear phenomena is naturally expected by the model when high density photo-excited carriers are generated by the high power laser pulse.

AB - Oscillatory relaxation of surface photovoltage has been observed by time-resolved photoemission spectroscopy on a Si(111)7 × 7 surface with a temporal period of several tens of nanoseconds. The oscillation was reproduced by solving non-linear Master equations that describe surface recombination of electron-hole pairs associated with the formation of exciton-like states at the surface. Appearance of non-linear phenomena is naturally expected by the model when high density photo-excited carriers are generated by the high power laser pulse.

KW - Carrier dynamics

KW - Semiconductor surface

KW - Surface photovoltage

KW - Synchrotron radiation

KW - Time-resolved photoemission

UR - http://www.scopus.com/inward/record.url?scp=84896959841&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84896959841&partnerID=8YFLogxK

U2 - 10.1016/j.susc.2014.01.014

DO - 10.1016/j.susc.2014.01.014

M3 - Article

AN - SCOPUS:84896959841

SN - 0039-6028

VL - 624

SP - 70

EP - 75

JO - Surface Science

JF - Surface Science

ER -

Non-linear kinetic model for oscillatory relaxation of the photovoltage effect on a Si(111)7 × 7 surface

Abstract

Keywords

ASJC Scopus subject areas

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