La<sub>2</sub>S<sub>3</sub>thin films from metal organic chemical vapor deposition of single-source precursor

Tian, Lu; Ouyang, Ti; Vittal, Jagadese J.

doi:10.1039/b511981b

Cited by 24 publications

(12 citation statements)

References 22 publications

(19 reference statements)

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“…7(A). The peaks at 837.55 and 854.32 eV were the La 3 d 5/2 and 3 d 3/2 core level peaks, respectively, while the peaks at 833.37 and 850.24 eV were assigned to shake‐up satellites caused by the transition of a valence‐band electron to an empty 4 f orbital, occurring with the transition of a 3 d electron to a continuum state 3 . The peaks of La did not shift after the powders were sintered to pellet, which suggested that the valence states and surrounding of La atoms did not change during sintering process.…”

Section: Resultsmentioning

confidence: 99%

“…L anthanum sesquisulfide (La 2 S 3 ) is a candidate for future infrared (IR) window and dome materials, because of its wider transmission range (0.5–14 μm), higher hardness, and higher melting points than other window and dome materials, such as ZnS, ZnSe, and MgF 2 1–3 . La 2 S 3 occurs in three crystallographic forms: α, β, and γ.…”

Section: Introductionmentioning

confidence: 99%

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Influences of Hot-Pressing Conditions on the Optical Properties of Lanthanum Sulfide Ceramics

Li¹,

Wang²,

Li³

2010

Journal of the American Ceramic Society

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The Ca‐doped γ‐La2S3 (γ‐La2S3:Ca) powders with various La/Ca ratios were prepared using the coprecipitation method. The γ‐La2S3:Ca powders with a ratio of La/Ca=5 was selected for sintering in order to study the effects of hot‐pressing temperature and time on the microstructure and optical properties of γ‐La2S3:Ca ceramics. The results showed that 1100°C for 1 h were the optimum hot‐press parameters, at which the maximum transmittance of γ‐La2S3:Ca ceramics up to 40% at 13 μm was obtained.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influences of Hot-Pressing Conditions on the Optical Properties of Lanthanum Sulfide Ceramics

Li¹,

Wang²,

Li³

2010

Journal of the American Ceramic Society

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“…Through MOCVD, heterogeneous materials with multiple compositions, large area, and ultrathin layer can be obtained. La 2 S 3 thin films have been synthesized by using the precursor of [La(bipy)(S 2 CNEt 2 ) 3 ] on different substrates . It was found that the growth of La 2 S 3 films was easiest on Si, but difficult on SiO 2 .…”

Section: Materials Classification and Synthesismentioning

confidence: 99%

Rare‐earth‐incorporated low‐dimensional chalcogenides: Dry‐method syntheses and applications

Zhang

Zhao

Zhang

et al. 2020

InfoMat

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Chalcogenide thin films incorporating rare-earth (RE) elements with applications in optics, electronics, and magnetics have received considerable attention. Aiming at growing pure chalcogenides, dry-method syntheses have been developed. In this review, we summarize the progress thus far on lowdimensional RE-based chalcogenides (RECs), covering fabrication methods, structures, and applications. This review also provides the summary and perspectives of the challenges of fabrication and opportunities on the application of RECs in the future.chalcogenide, dry-method synthesis, rare earth elements

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“…Lanthanum sesquisulfide, having a wide transmission range (0.5-14 mm), possesses a superior combination of low thermal expansion coefficient, high melting point, and sufficient mechanical hardness, making it an attractive alternative for future IR window and dome materials [1][2][3][4][5]. Lanthanum sulfide has three different allotropic forms (α, β, and γ-La 2 S 3 ) in the crystalline state.…”

Section: Introductionmentioning

confidence: 99%

“…La(Et 2 S 2 CN) 3 ·phen decomposes to γ-La 2 S 3 by La 4 (Et 2 S 2 CN) 3 as an intermediate product.…”

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confidence: 99%

Preparation and characterization of γ-La2S3 nanoparticles from thermal decomposition

Wang

2011

Int J Miner Metall Mater

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To synthesize pure γ-La 2 S 3 at lower temperature, lanthanide complex La(Et 2 S 2 CN) 3 ·phen, containing La−S bond, was chosen as the precursors to decompose. The obtained samples were characterized by X-ray power diffraction (XRD), field-emission scanning electron microscopy (FE-SEM) with an energy dispersive spectrometer and UV-Vis diffuse reflectance spectra. The decomposition mechanism of the lanthanide complex was studied by thermogravimetric analyses (TGA). The results show that the obtained samples are cubic phase particles with sizes among 20-50 nm and the band gap is 2.97 eV, which is bigger than that of its bulk crystal. TG/DTG results indicate that La(Et 2 S 2 CN) 3 ·phen decomposed to γ-La 2 S 3 via La 4 (Et 2 S 2 CN) 3 as an intermediate product.

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La₂S₃thin films from metal organic chemical vapor deposition of single-source precursor

Cited by 24 publications

References 22 publications

Influences of Hot-Pressing Conditions on the Optical Properties of Lanthanum Sulfide Ceramics

Influences of Hot-Pressing Conditions on the Optical Properties of Lanthanum Sulfide Ceramics

Rare‐earth‐incorporated low‐dimensional chalcogenides: Dry‐method syntheses and applications

Preparation and characterization of γ-La2S3 nanoparticles from thermal decomposition

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La2S3thin films from metal organic chemical vapor deposition of single-source precursor

Cited by 24 publications

References 22 publications

Influences of Hot-Pressing Conditions on the Optical Properties of Lanthanum Sulfide Ceramics

Influences of Hot-Pressing Conditions on the Optical Properties of Lanthanum Sulfide Ceramics

Rare‐earth‐incorporated low‐dimensional chalcogenides: Dry‐method syntheses and applications

Preparation and characterization of γ-La2S3 nanoparticles from thermal decomposition

Contact Info

Product

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La₂S₃thin films from metal organic chemical vapor deposition of single-source precursor