Crystal chemistry, stability and properties of interlanthanide perovskites: A review

Artini, Cristina

doi:10.1016/j.jeurceramsoc.2016.08.041

Cited by 52 publications

(15 citation statements)

References 107 publications

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“…All the studied systems of trivalent rare earth oxides are characterized by wide ranges of solid solutions in the structures identified in pure oxides. Eleven interlanthanide perovskites are known to form in several systems combining large and small rare earths: LaRO 3 (R = Y, Ho-Lu), CeRO 3 (R = Tm-Lu), and PrRO 3 (R = Yb-Lu) [ 37 , 38 , 39 ]. They all show an orthorhombic ( Pnma ) distortion and do not melt congruently, but decompose at 800–2000 °C into solid solutions of one of rear earth oxide structure types [ 39 ].…”

Section: Introductionmentioning

confidence: 99%

“…Eleven interlanthanide perovskites are known to form in several systems combining large and small rare earths: LaRO 3 (R = Y, Ho-Lu), CeRO 3 (R = Tm-Lu), and PrRO 3 (R = Yb-Lu) [ 37 , 38 , 39 ]. They all show an orthorhombic ( Pnma ) distortion and do not melt congruently, but decompose at 800–2000 °C into solid solutions of one of rear earth oxide structure types [ 39 ]. LaGdO 3 in a B-type structure attracted attention for application as high-k gate dielectric [ 40 ] and as an optical temperature sensor when doped with Er/Yb [ 41 , 42 ].…”

Section: Introductionmentioning

confidence: 99%

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Thermal Analysis of High Entropy Rare Earth Oxides

et al. 2020

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Phase transformations in multicomponent rare earth sesquioxides were studied by splat quenching from the melt, high-temperature differential thermal analysis and synchrotron X-ray diffraction on laser-heated samples. Three compositions were prepared by the solution combustion method: (La,Sm,Dy,Er,RE)2O3, where all oxides are in equimolar ratios and RE is Nd or Gd or Y. After annealing at 800 °C, all powders contained mainly a phase of C-type bixbyite structure. After laser melting, all samples were quenched in a single-phase monoclinic B-type structure. Thermal analysis indicated three reversible phase transitions in the range 1900–2400 °C, assigned as transformations into A, H, and X rare earth sesquioxides structure types. Unit cell volumes and volume changes on C-B, B-A, and H-X transformations were measured by X-ray diffraction and consistent with the trend in pure rare earth sesquioxides. The formation of single-phase solid solutions was predicted by Calphad calculations. The melting point was determined for the (La,Sm,Dy,Er,Nd)2O3 sample as 2456 ± 12 °C, which is higher than for any of constituent oxides. An increase in melting temperature is probably related to nonideal mixing in the solid and/or the melt and prompts future investigation of the liquidus surface in Sm2O3-Dy2O3, Sm2O3-Er2O3, and Dy2O3-Er2O3 systems.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Thermal Analysis of High Entropy Rare Earth Oxides

et al. 2020

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“…The literature [45][46][47] shows that CeCrO 3 , CeFeO 3 , CeGaO 3 , GdMnO 3 , PrCoO 3 , PrMnO 3 , SmCoO 3 , SmCrO 3 , and SmVO 3 crystal structures for perovskite compositions exist. The ideal structure for perovskite material has cubic symmetry composed of BC6-octahedra with cuboctahedral voids occupied by the A-cations.…”

Section: Perovskite Crystal Structurementioning

confidence: 99%

A review on perovskite materials with solar cell prospective

Ali

Shehzad

Uddin³

et al. 2021

Int J Energy Res

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Research on perovskite materials is an emerging trend from the last decade in order to improve the precision, stability, validity, consistency and reproducibility of reported perovskite materials and structures. These efforts are very much successful in advancing the composition, solvent, interface, and structure engineering leading toward the record efficiency value of 25.4%. However, the device instability has limited the practical applications of the hybrid perovskite solar cell. This review provides an up-to-date summary of the developments to resolve these issues with the uses of different synthesis routes and materials to obtain a stable ABX 3 type structure of the perovskite materials. This review also comprehend the effects of electron transport layer on hysteresis phenomenon and long term stability with an outlook on current challenges and further development. Furthermore, a comprehensive discussion on the crystal structure, energy level, absorption coefficient, degradation and chemical bonding in perovskite solar cell materials is also included. Finally, a brief future outlook for perovskites solar cells is discussed.

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“…El interés acerca de las perovskitas se intensificó con el descubrimiento del BaTiO3, material muy utilizado en la electrónica [125]. A partir de entonces se comenzó a investigar más intensamente en este tipo de estructuras dadas sus buenas propiedades físicas y químicas, habiéndose obtenido una gran variedad de materiales debido a la flexibilidad de la estructura, que es capaz de albergar iones con tamaños o estados de valencia muy diferentes [126].…”

Section: Conclusionesunclassified

Synthesis and luminescence of Eu3+ doped nanocrystalline TiO2 spheres

Łysień

Fiączyk²,

Tomala

et al. 2019

Journal of Rare Earths

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hacerme feliz, de una manera u otra siempre consigues hacerme sonreír. Gracias por tu paciencia durante estos años, en breve podremos hacer ese viaje que tanto deseamos.Por último, agradecer a mi madre por todo lo que me ha dado y enseñarme ante todo a razonar, y a toda mi familia, sin vuestra ayuda nunca habría podido llegar hasta aquí. Gracias por todo. v CONTENIDOS PUBLICADOS. -A. Egaña, C. de la Torre Gamarra, M. Tardío, A. Várez, J.E. Muñoz-Santiuste, Structural, morphology and luminescence study of Er +3 -doped garnet-type Li5La3Nb2O12 electrolytes as a potential new phosphor, Ceramics International 44 (15),

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Crystal chemistry, stability and properties of interlanthanide perovskites: A review

Cited by 52 publications

References 107 publications

Thermal Analysis of High Entropy Rare Earth Oxides

Thermal Analysis of High Entropy Rare Earth Oxides

A review on perovskite materials with solar cell prospective

Synthesis and luminescence of Eu3+ doped nanocrystalline TiO2 spheres

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