An Easy Route to Pure and Luminescent Eu‐Doped YVO<sub>4</sub> Polycrystalline Films Based on Molecular or Hybrid Precursors

Deligne, Nicolas; Lamme, Julien; Devillers, Michel

doi:10.1002/ejic.201100334

Cited by 5 publications

(3 citation statements)

References 47 publications

(20 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Oxide dielectrics have been the subject of numerous investigations for many years due to their possible device integration in a wide range of technologies involving electronics, electro-optics, optoelectronics, and magneto-electronics. − Yttrium oxide (Y 2 O 3 ), a stable oxide of yttrium metal, has received significant attention in recent years in view of its possible integration into a wide range of scientific and technological applications. − Y 2 O 3 films exhibit excellent electronic properties such as transparency over a broad spectral range (0.2–8 μm), high dielectric constant (∼14–18), high refractive index (∼2), large band gap (∼5.8 eV), low absorption (from near-UV to IR), and superior electrical breakdown strength (>3 MV/cm). ,− ,− These properties make Y 2 O 3 films interesting for various electrical and optical devices. − Yttrium oxides were proposed as hosts for rare-earth elements, and efficient thin film phosphors were prepared. − The interface layer formation, however, was detected for several compounds, and structural and chemical parameters of the interface were dependent on the deposition conditions. Therefore, controlled growth and manipulation of microstructure, particularly at the nanoscale dimensions, has important implications for the design and applications of Y 2 O 3 films.…”

Section: Introductionmentioning

confidence: 99%

Electronic Structure and Optical Quality of Nanocrystalline Y₂O₃ Film Surfaces and Interfaces on Silicon

et al. 2014

View full text Add to dashboard Cite

Nanocrystalline yttrium oxide (Y 2 O 3 ) thin films were made by sputter deposition onto silicon (100) substrates keeping the deposition temperature fixed at 300 °C. The surface/interface chemistry, Y−O bonding, and optical constants of the Y 2 O 3 film surface and Y 2 O 3 −Si interface were evaluated by the combined use of X-ray photoelectron spectroscopy (XPS), depth-profiling, and spectroscopic ellipsometry (SE). XPS analyses indicate the binding energies (BEs) of the Y 3d doublet; i.e., the Y 3p 5/2 and Y 3d 3/2 peaks are located at 117.0 and 119.1 eV, respectively, characterizing yttrium in its highest chemical oxidation state (Y 3+ ) in the grown films. The optical model is constructed based on the XPS depth profiles, which indicate that the Y 2 O 3 //Si heterostructure can be represented with Y 2 O 3 filmY x Si y O z interfacial compoundSi substrate. Such a model accounts for the experimentally determined ellipsometry functions and accurately produces the dispersive index of refraction (n(λ)) of Y 2 O 3 and Y x Si y O z . The n(λ) of Y 2 O 3 and Y x Si y O z follows Cauchy's dispersion relation, while the Y x Si y O z formation accounts for degradation of optical quality.

show abstract

Section: Introductionmentioning

confidence: 99%

Electronic Structure and Optical Quality of Nanocrystalline Y₂O₃ Film Surfaces and Interfaces on Silicon

et al. 2014

View full text Add to dashboard Cite

show abstract

“…The phosphor paste synthesized with nitrocellulose showed superior adhesion behavior, low residual carbon content, and excellent luminescent properties. Similarly, (hydroxypropyl)methyl cellulose was used as an additive to a precursor solution used in the preparation of V 2 O 5 , Y 2 O 3 , and YVO 4 as well as luminescent Eu‐doped YVO 4 films by spin coating . However, in these two examples, the cellulosic polymers only display a significant role on the preparation of the pastes or the films, because before their usage, the biopolymers are removed by calcination.…”

Section: Cellulose‐derived Luminescent Materialsmentioning

confidence: 99%

“…Cellulose derivatives, including ethylcellulose, nitrocellulose, hydroxypropylcellulose, cellulose acetate, carboxymethylcellulose, cellulose acetatebutyrate, and cyanoethylcellulose have also been extensively used as solid substrates for the preparation of novel luminescent materials, mainly for the preparation of sensors, because of their specific properties and solubility in several organic solvents.…”

Section: Cellulose‐derived Luminescent Materialsmentioning

confidence: 99%

An overview of luminescent bio‐based composites

Pinto

Carlos

Marques

et al. 2014

J of Applied Polymer Sci

View full text Add to dashboard Cite

The development of inorganic/organic composite materials represents a fast-growing interdisciplinary area in materials science and engineering. In this topic, a key idea is the production of composites comprising biopolymers and functional inorganic phases that could replace conventional materials in several high-technology applications. Following this concept, the use of different polymers from renewable sources, such as cellulose, starch, alginate, and chitosan, have gained great relevance because of their renewable nature, potential biocompatibility, and biodegradability, as well as specific physicochemical properties. The combination of these biopolymers with different fillers (including inorganic nanoparticles (NPs), clusters, or ions) allows the design of innovative biobased materials with specific and/or improved properties, namely, optical, mechanical, and barrier properties, luminescence, and biological properties (as antimicrobial activity and biocompatibility). This review will focus on the most important synthetic approaches, properties, and applications of luminescent bio-based composites obtained by combining different biopolymers and fillers.

show abstract

Efficient Use of a Polyamine Carboxylate Ligand to Probe the Extent of Incorporation of Stereochemically Active Bi³⁺ in ThO₂

et al. 2018

View full text Add to dashboard Cite

Realizing the advantages of atomic level mixing, high homogeneity precise stoichiometric control and low processing temperatures, co‐precipitation route employing the polyamine carboxylate, ethylenediamine tetra acetic acid (EDTA) has been followed to determine the extent of dissolution of bismuth in ThO2 adopting fluorite structure. While the precursors containing varying amounts of Th4+ and Bi3+ were X‐ray amorphous, calcining them at 800 °C for 6 h yielded crystalline oxides with fluorite structure till Th0.40Bi0.60O2‐δ. This was supported by Raman spectral measurements in which defect band due to oxygen vacancies was present at around 590 cm−1 in addition to the band due to fluorite at around 460 cm−1. An increasing trend of cubic lattice constant with progressive substitution of bismuth in ThO2 was observed. The direct band gap was found to decrease with increase in bismuth content and was lying in the range of 2.54‐3.62 eV. Porous morphology of the samples was evident in their scanning electron microscopic images and they were macro porous as determined from surface area analysis measurements. Th0.50Bi0.50O2‐δ was found to efficiently catalyze the reduction of some nitroaromatics for nearly six cycles.

show abstract

An Easy Route to Pure and Luminescent Eu‐Doped YVO₄ Polycrystalline Films Based on Molecular or Hybrid Precursors

Cited by 5 publications

References 47 publications

Electronic Structure and Optical Quality of Nanocrystalline Y₂O₃ Film Surfaces and Interfaces on Silicon

Electronic Structure and Optical Quality of Nanocrystalline Y₂O₃ Film Surfaces and Interfaces on Silicon

An overview of luminescent bio‐based composites

Efficient Use of a Polyamine Carboxylate Ligand to Probe the Extent of Incorporation of Stereochemically Active Bi³⁺ in ThO₂

Contact Info

Product

Resources

About

An Easy Route to Pure and Luminescent Eu‐Doped YVO4 Polycrystalline Films Based on Molecular or Hybrid Precursors

Cited by 5 publications

References 47 publications

Electronic Structure and Optical Quality of Nanocrystalline Y2O3 Film Surfaces and Interfaces on Silicon

Electronic Structure and Optical Quality of Nanocrystalline Y2O3 Film Surfaces and Interfaces on Silicon

An overview of luminescent bio‐based composites

Efficient Use of a Polyamine Carboxylate Ligand to Probe the Extent of Incorporation of Stereochemically Active Bi3+ in ThO2

Contact Info

Product

Resources

About

An Easy Route to Pure and Luminescent Eu‐Doped YVO₄ Polycrystalline Films Based on Molecular or Hybrid Precursors

Electronic Structure and Optical Quality of Nanocrystalline Y₂O₃ Film Surfaces and Interfaces on Silicon

Electronic Structure and Optical Quality of Nanocrystalline Y₂O₃ Film Surfaces and Interfaces on Silicon

Efficient Use of a Polyamine Carboxylate Ligand to Probe the Extent of Incorporation of Stereochemically Active Bi³⁺ in ThO₂