The Behavior of Current and Dielectric Response in SBN-75:Cr Single Crystal under Illumination Effect

Guzhakovskaya, Kristina; Burkhanov, A. I.; Ivleva, L. I.; Tumanov, I. E.

doi:10.1080/00150193.2014.948790

Cited by 3 publications

(1 citation statement)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Doping is expected [55] , [56] to further decrease thermal conductivity, but is mainly investigated in hopes of achieving good values of electrical conductivity (σ) and Seebeck coefficient (S), which are generally too low. However, only doping of SBN materials at low levels (few %) has been investigated largely [8,15,22,23,28,35,36,38,39,53,[57][58][59][60][61][62][63][64], while it would be highly desirable to explore the feasibility and effectiveness of doping at high levels, when doping is expected to affect the whole band structure in addition to a simple injection of electrons or holes.…”

Section: Introductionmentioning

confidence: 99%

Local environments and transport properties of heavily doped strontium barium niobates Sr0.5Ba0.5Nb2O6

Ottini

Tealdi

Tomasi

et al. 2018

Journal of Solid State Chemistry

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Local environments and transport properties of heavily doped strontium barium niobates Sr0.5Ba0.5Nb2O6

Ottini

Tealdi

Tomasi

et al. 2018

Journal of Solid State Chemistry

View full text Add to dashboard Cite

show abstract

Innovative Approaches Towards the Synthesis of Thermoelectric Oxides

Soffientini

Ghigna

Spinolo

et al. 2019

Advanced Thermoelectric Materials

View full text Add to dashboard Cite

Feasibility of electron and hole injection in heavily doped strontium barium niobate (SBN50) Sr0.5Ba0.5Nb2O6 for thermoelectric applications

Ottini

Tealdi

Tomasi

et al. 2017

Journal of Applied Physics

View full text Add to dashboard Cite

Undoped and heavily doped (K, Y, Zr, Mo) strontium barium niobate Sr0.5Ba0.5Nb2O6 (SBN50) materials have been prepared by co-precipitation. X-ray diffraction shows the formation of a single-phase product and that 10% and 12.5% of the Nb sites can be occupied by Zr and Mo, respectively. K can enter 40% of the Sr sites, while the maximum Y substitution is also around 40%. The starting stoichiometry is effective in driving the substitutions to the desired sites. X-ray Absorption Spectroscopy (XAS) at the Nb-K edge shows the presence of Nb(V) independent of doping. A pre-edge 1s-4d transition surprisingly indicates the hole injection with Y doping and the electron injection with Zr doping. Chemical reduction does not affect the stability of the structure, except for a small decrease of maximum Y solubility, while the Nb(V) oxidation state and the XAS pre-edge feature are unmodified. The oxidized samples are insulators, the reduced samples show electrical conductivity, and doping significantly enhances thermopower and electrical conductivity. The Y doped sample shows a power factor ∼30 times larger than that of the undoped sample.

show abstract

The Behavior of Current and Dielectric Response in SBN-75:Cr Single Crystal under Illumination Effect

Cited by 3 publications

References 8 publications

Local environments and transport properties of heavily doped strontium barium niobates Sr0.5Ba0.5Nb2O6

Local environments and transport properties of heavily doped strontium barium niobates Sr0.5Ba0.5Nb2O6

Innovative Approaches Towards the Synthesis of Thermoelectric Oxides

Feasibility of electron and hole injection in heavily doped strontium barium niobate (SBN50) Sr0.5Ba0.5Nb2O6 for thermoelectric applications

Contact Info

Product

Resources

About