The effect of incident laser energy on pulsed laser deposition of HgCdTe films

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 film deposited using the highest laser fluence of 7 J cm−2 pulse−1.

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

Abutaha

Kumar

Alshareef

2012

Applied Physics Letters

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Effect of power variation on microstructure and surface morphology of HgCdTe films deposited by RF magnetron sputtering

Wang¹,

Kong²,

Li³

et al. 2010

J. Semicond.

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Mercury cadmium telluride films were grown by the RF magnetron sputtering technique at different sputtering powers. In experiment, X-ray diffraction (XRD) and atomic force microscopy (AFM) have been used to characterize the microstructure of HgCdTe films. The experimental results showed that when the growth power increased, the growth rate of HgCdTe films increased; when the growth power was less than 30 W, the HgCdTe film deposited by RF magnetron sputtering was amorphous; when the growth power was more than 30 W, the films exhibited polycrystalline structure. Films deposited at different growth rates were found to have characteristically different formations and surface morphologies; as observed through AFM, the surface morphology is composed of longitudinal islands forming a maze-like pattern in the high deposition rate. AFM analysis also illustrated that a significant reduction in the areal density of large islands and characteristically smoother films was achieved using a low deposition rate.

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The effect of incident laser energy on pulsed laser deposition of HgCdTe films

Cited by 2 publications

References 10 publications

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

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

Effect of power variation on microstructure and surface morphology of HgCdTe films deposited by RF magnetron sputtering

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