Title of article
Non-linear kinetic model for oscillatory relaxation of the photovoltage effect on a Si(111)7 × 7 surface
Author/Authors
Ogawa، نويسنده , , M. and Liu، نويسنده , , R.-Y. and Lin، نويسنده , , C.-H. and Yamamoto، نويسنده , , S. and Yukawa، نويسنده , , R. and Hobara، نويسنده , , R. and Tang، نويسنده , , S.-J. and Matsuda، نويسنده , , I.، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2014
Pages
6
From page
70
To page
75
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
Synchrotron radiation , Semiconductor surface , Surface photovoltage , carrier dynamics , time-resolved photoemission
Journal title
Surface Science
Serial Year
2014
Journal title
Surface Science
Record number
1706379
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