Giant dielectric properties of Na1/2La1/2Cu3Ti4O12 perovskite ceramic: First-principles and experimental investigations

Boonlakhorn, Jakkree; Suksangrat, Punpatsorn; Jumpatam, Jutapol; Sarakorn, Weerachai; Krongsuk, Sriprajak; Thongbai, Prasit; Srepusharawoot, Pornjuk

doi:10.1016/j.matchemphys.2023.127574

Cited by 4 publications

(1 citation statement)

References 43 publications

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“…These phases originate from the occupation of Li ions at Cu sites in these fabricated ceramics. This observation can also be found in the NSCTO and NLCTO ceramics.…”

Section: Resultsmentioning

confidence: 94%

Li_1/2Y_1/2Cu₃Ti₄O₁₂ Ceramic: Structural, Dielectric, and Electrical Investigations

Boonlakhorn,

Promsai,

Khongpakdee

et al. 2023

ACS Appl. Electron. Mater.

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A solid-state reaction was performed to create Li1/2Y1/2Cu3Ti4O12, a ceramic with a very high dielectric constant. The crystal structure of the ceramic samples belongs to the Im3 space group. Impurity phases such as CuO and TiO2 have been identified. A dielectric constant of approximately 4.70–5.00 × 103 and a low loss tangent of 0.091–0.126 were obtained from our sintered Li1/2Y1/2Cu3Ti4O12 (LYCTO) ceramics. Impedance spectroscopy results showed the ceramic microstructure to be electrically heterogeneous. From our electron density analysis, the oxygen vacancy in the LYCTO lattice is associated with the observation of the Cu+ and Ti3+ ions. Finally, significantly divergent values between R g and R gb and between E g and E gb indicate that an internal barrier layer capacitor contributes significantly to this ceramic’s enormous dielectric properties.

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“…These phases originate from the occupation of Li ions at Cu sites in these fabricated ceramics. This observation can also be found in the NSCTO and NLCTO ceramics.…”

Section: Resultsmentioning

confidence: 94%

Li_1/2Y_1/2Cu₃Ti₄O₁₂ Ceramic: Structural, Dielectric, and Electrical Investigations

Boonlakhorn,

Promsai,

Khongpakdee

et al. 2023

ACS Appl. Electron. Mater.

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Significantly reduced the low-loss tangent in A2/3Cu3Ti4O12 (A = Gd and Sm) ceramics through a double-step calcination process

Boonlakhorn,

Changchuea,

Suksangrat

et al. 2024

Journal of the European Ceramic Society

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Structures and colossal dielectric behavior of Na1/3Ca1/3La1/3Cu3Ti4O12 ceramics fabricated via a sol−gel process

Boonlakhorn¹,

Jumpatam²,

Suksangrat³

et al. 2023

Journal of Physics and Chemistry of Solids

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Giant dielectric properties of Na1/2La1/2Cu3Ti4O12 perovskite ceramic: First-principles and experimental investigations

Cited by 4 publications

References 43 publications

Li_1/2Y_1/2Cu₃Ti₄O₁₂ Ceramic: Structural, Dielectric, and Electrical Investigations

Li_1/2Y_1/2Cu₃Ti₄O₁₂ Ceramic: Structural, Dielectric, and Electrical Investigations

Significantly reduced the low-loss tangent in A2/3Cu3Ti4O12 (A = Gd and Sm) ceramics through a double-step calcination process

Structures and colossal dielectric behavior of Na1/3Ca1/3La1/3Cu3Ti4O12 ceramics fabricated via a sol−gel process

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Giant dielectric properties of Na1/2La1/2Cu3Ti4O12 perovskite ceramic: First-principles and experimental investigations

Cited by 4 publications

References 43 publications

Li1/2Y1/2Cu3Ti4O12 Ceramic: Structural, Dielectric, and Electrical Investigations

Li1/2Y1/2Cu3Ti4O12 Ceramic: Structural, Dielectric, and Electrical Investigations

Significantly reduced the low-loss tangent in A2/3Cu3Ti4O12 (A = Gd and Sm) ceramics through a double-step calcination process

Structures and colossal dielectric behavior of Na1/3Ca1/3La1/3Cu3Ti4O12 ceramics fabricated via a sol−gel process

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Product

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Li_1/2Y_1/2Cu₃Ti₄O₁₂ Ceramic: Structural, Dielectric, and Electrical Investigations

Li_1/2Y_1/2Cu₃Ti₄O₁₂ Ceramic: Structural, Dielectric, and Electrical Investigations