Evaluation of the electrical and physical properties of thin calcium titanate high-k insulators for capacitor applications

Abstract

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Investigation of Embedded Perovskite Nanoparticles for Enhanced Capacitor Permittivities

“…This is slightly below the temperature of approximately 650°C for which full crystallization of the whole layer on top of a Si substrate was achieved in previous investigations. 27 The deposition rate of CaTiO 3 was approximately 0.17 nm/min.…”

Conventional and cryo-synchronous luminescence spectra of orthorhombic calcium titanate

“…The PL contour maps in the photon energy domain for nanocrystalline CaTiO 3 We decided to analyze the PL contour map of emission from nanocrystalline CaTiO 3 at 77 K when plotted in the photon energy domain, Figure 6. In Figure 6, the set of progressive emission contours starting from the point with coordinates (E exc = 2.50 eV and E emiss = 2.50 eV), which is directed at the 45 degrees angle is due to the Raleigh (excitation) lines, and this set of contours is labeled "Raleigh".…”

“…On the other hand, the PL excitation spectrum is obtained by changing the λ exc , while the PL emission is monitored at a desired constant λ emiss . The major drawback of "conventional" PL spectroscopy is very broad, 3 strongly overlapping spectral bands which are difficult to resolve into contributions from the individual electronic states.…”

“…Alkaline earth metal titanates MTiO 3 (M = Ba, Sr, Ca, Mg) are broad bandgap semiconductors with applications in electronic devices [1][2][3], in sensors [4], as catalysts [5], photocatalysts [6][7][8], sorbents [9], and superconductors [10]. Alkaline earth metal titanates feature the more negative potentials of the conduction band minimum, CBM [11] than the benchmark photocatalyst titanium dioxide, which makes them attractive photocatalysts for hydrogen generation [6][7][8].…”

Calcium titanate (CaTiO 3 ) dielectrics prepared by plasma spray and post-deposition thermal treatment

“…These titanates have recently attracted attention because some titanates are used as semi-conductive, ferroelectric and photorefractive materials. Dielectrics based on calcium titanate are widely used in different fields of electronics applications [5][6][7]. For its high relative permittivity and low dielectric losses CaTiO 3 is recommended as a prospective ceramic material for high frequency electronics applications.…”