Title of article
Dynamics of highly excited charge carriers in CdS nanocrystallites embedded into ZrO2 films
Author/Authors
I. Mikulskas، نويسنده , , I. and Toma?i?nas، نويسنده , , Proddutur R. and Vaitkus، نويسنده , , J.V. and Bovier، نويسنده , , C. and Dumas، نويسنده , , J.G. and Mugnier، نويسنده , , J.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2001
Pages
3
From page
71
To page
73
Abstract
Transient grating experiments were performed at room temperature in CdS nanocrystallites (nc) embedded into ZrO2 sol–gel films. The dynamics of photo-generated carrier showed to depend on the excitation intensity. Relaxation of non-equilibrium charge carriers take place through two channels: electron–hole recombination in nanocrystallite volume and nanocrystallite/ZrO2 matrix surface states. At higher intensities a saturation of the excited surface states occurs simultaneously with the carrier heating. Systematic increase of the carrier lifetime is observed with the nc size.
Keywords
Four wave mixing , ZrO2 matrix , Sol–gel , CdS nanocrystallites
Journal title
Materials Science and Engineering C
Serial Year
2001
Journal title
Materials Science and Engineering C
Record number
2097281
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