Rare-earth-modified Sr0.5Ba0.5Nb2O6, ferroelectric crystals and their applications as infrared detectors

A Modified SBN System for Pyroelectric Sensors

“…For LSBNT5 sample, the results compare well with those reported for doped/undoped SBN single crystals [13] and PZT ceramics [24], the latter could be taken as a standard material for pyroelectric detection. [13]. † S. Bauer et.…”

“…It is seen, for instance, that the transition temperature takes lower values as the concentration of vacancies and/or dopants increase as opposed to the case where all the crystallographic sites are completely occupied [11]. Rare earth doping of the SBN system will lead to lower Tc and improve dielectric and pyroelectric properties at room temperature [12][13]. Specifically, lanthanum doping will produce a very stable polarized material at room temperature [14].…”

Dielectric and pyroelectric properties of Sr-modified (Na0.5Bi0.5) Bi4Ti4O15 ceramics

“…This is very useful in device point of view, since instead of varying material temperature to obtain optimum device characteristics it is possible to vary crystal composition and operate the device at lower temperatures. The values observed in the present study are lower when compared to some of the materials used for pyroelectric device applications like PZT, PbTiO 3 and SBN [29,30]. Yet, the present materials, due to the high Curie temperatures and low loss, have the advantage of resistance to depoling, which may help for long term operation.…”

Effect of rare-earth ions on the properties of modified (SrBa)Nb2O6 ceramics

“…It has been extensively investigated in single-crystal form by Glass [1] and Liu and Maciolek [2] for pyroelectric applications and by Jamieson et al [3] from the structural point of view. It has been extensively investigated in single-crystal form by Glass [1] and Liu and Maciolek [2] for pyroelectric applications and by Jamieson et al [3] from the structural point of view.…”