scholarly journals Interface-induced enhancement of piezoelectricity in the (SrTiO3)m/(BaTiO3)M−m superlattice for energy harvesting applications

2019 ◽  
Vol 21 (42) ◽  
pp. 23541-23551 ◽  
Author(s):  
Guntars Zvejnieks ◽  
Leonid L. Rusevich ◽  
Denis Gryaznov ◽  
Eugene A. Kotomin
Keyword(s):  
Energy Harvesting ◽  
Fold Increase ◽  
Lead Free ◽  
Piezoelectric Constant

A six-fold increase of the e33 piezoelectric constant is theoretically predicted for a lead-free perovskite superlattice.

The Characteristic of the La3Ga5SiO14 Single Crystal Grown by Vertical Bridgman Method in Ar Atmosphere

2006 ◽  
Vol 510-511 ◽  
pp. 842-845 ◽  
Author(s):  
Noriko Bamba ◽  
Kentaro Kato ◽  
Toshinori Taishi ◽  
Takayuki Hayashi ◽  
Keigo Hoshikawa ◽  
...  
Keyword(s):  
Melting Point ◽  
Single Crystal ◽  
Single Crystals ◽  
Room Temperature ◽  
Color Change ◽  
Piezoelectric Materials ◽  
Lead Free ◽  
Piezoelectric Constant ◽  
Interstitial Oxygen ◽  
Vertical Bridgman

Langasite (La3Ga5SiO14: denoted by LGS) single crystal is one of the lead free piezoelectric materials with high piezoelectricity that is maintained up to its melting point (1470°C). Although LGS single crystals have usually been grown by Czochralski (CZ) method in oxygen contained atmosphere to prevent evaporation of Ga, they were grown by the vertical Bridgman (VB) method in Ar atmosphere without oxygen, and their properties were evaluated in this work. Transparent and colorless LGS single crystals were successfully obtained without Ga evaporation by the VB method in Ar atmosphere, and their resistivity at room temperature was much higher than that grown by conventional CZ method. Piezoelectric constant d11 of the crystal grown by the VB method was 6 x 10-12 C/N, which was close to that of the crystal grown by CZ method. The colorless transparent LGS single crystal turned to orange and its resistivity decreased by annealing in air. Since an orange-colored transparent LGS single crystal has been grown by conventional CZ method, this indicates that color change and the resistivity decrease of LGS crystal is caused by extra interstitial oxygen atoms in the crystal.

Ultrahigh Energy Harvesting Performance in Lead-free Piezocomposites with Intragranular Structure

2021 ◽  
pp. 117450
Author(s):  
Xiaodong Yan ◽  
Mupeng Zheng ◽  
Xin Gao ◽  
Ling Li ◽  
Jürgen Rödel ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Lead Free ◽  
Ultrahigh Energy

Improved Li and Sb doped lead-free (Na,K)NbO3 piezoelectric ceramics for energy harvesting applications

2018 ◽  
Vol 44 (18) ◽  
pp. 22219-22224 ◽  
Author(s):  
Jinhwan Kim ◽  
Jae-Hoon Ji ◽  
Dong-Jin Shin ◽  
Jung-Hyuk Koh
Keyword(s):  
Energy Harvesting ◽  
Piezoelectric Ceramics ◽  
Lead Free

A New Hybrid Lead‐Free Metal Halide Piezoelectric for Energy Harvesting and Human Motion Sensing

Small ◽  
2021 ◽  
pp. 2103829
Author(s):  
Tian‐Meng Guo ◽  
Yong‐Ji Gong ◽  
Zhi‐Gang Li ◽  
Yi‐Ming Liu ◽  
Wei Li ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Human Motion ◽  
Metal Halide ◽  
Lead Free ◽  
Motion Sensing ◽  
Free Metal

scholarly journals Influence of Al2O3 nanoparticle doping on depolarization temperature, and electrical and energy harvesting properties of lead-free 0.94(Bi0.5Na0.5)TiO3–0.06BaTiO3 ceramics

RSC Advances ◽  
2020 ◽  
Vol 10 (53) ◽  
pp. 32078-32087
Author(s):  
Pharatree Jaita ◽  
Supalak Manotham ◽  
Gobwute Rujijanagul
Keyword(s):  
Energy Harvesting ◽  
Electric Field ◽  
Lead Free ◽  
Depolarization Temperature ◽  
Research Article ◽  
Al2o3 Nanoparticle ◽  
Electric Field Induced Strain

In this research article, the effects of Al2O3 nanoparticles (0–1.0 mol%) on the phase, microstructure, dielectric, ferroelectric, piezoelectric, electric field-induced strain and energy harvesting of the BNT–6BT ceramic were investigated.

Sign in / Sign up

Export Citation Format

Share Document