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arXiv · 0712.0472

Recombination kinetics of a dense electron-hole plasma in strontium titanate

A. Rubano·D. Paparo·F. Miletto Granozio·U. Scotti di Uccio·L. Marrucci
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Abstract

We investigated the nanosecond-scale time decay of the blue-green light emitted by nominally pure SrTiO$_3$ following the absorption of an intense picosecond laser pulse generating a high density of electron-hole pairs. Two independent components are identified in the fluorescence signal that show a different dynamics with varying excitation intensity, and which can be respectively modeled as a bimolecular and unimolecolar process. An interpretation of the observed recombination kinetics in terms of interacting electron and hole polarons is proposed.

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A. Rubano, D. Paparo, F. Miletto Granozio, U. Scotti di Uccio, L. Marrucci. 2007-12-04. Recombination kinetics of a dense electron-hole plasma in strontium titanate. https://doi.org/10.1103/physrevb.76.125115

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