Laser energy tuning of carrier effective mass and thermopower in epitaxial oxide thin films

Anas I. Abutaha, S. R. Sarath Kumar, Husam N. Alshareef

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8 Scopus citations


The effect of the laser fluence on high temperature thermoelectric properties of the La doped SrTiO3 (SLTO) thin films epitaxially grown on LaAlO3 〈100〉 substrates by pulsed laser deposition is clarified. It is shown that oxygen vacancies that influence the effective mass of carriers in SLTO films can be tuned by varying the laser energy. The highest power factor of 0.433 W K−1 m−1 has been achieved at 636 K for a filmdeposited using the highest laser fluence of 7 J cm−2 pulse−1.
Original languageEnglish (US)
Pages (from-to)162106
JournalApplied Physics Letters
Issue number16
StatePublished - Apr 18 2012

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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