欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
采用固态烧结工艺制备了位于反铁电/铁电相界附近的掺镧锆锡钛酸铅（PLZST）反铁电陶瓷样品.采用该样品作为阴极材料,研究了其在负脉冲激励电场下的电子发射行为.负脉冲激励下,0.5mm厚PLZST反铁电陶瓷圆片发射阈值电压为500V;当激励电压为500V,抽取电压为3.5kV时,得到690A发射电流.结果表明,PLZST反铁电陶瓷发射阈值电压低,发射电流大,即使激励电场低于陶瓷的正向开关电场,仍能得到强发射电流.最后,讨论了PLZST反铁电陶瓷在负脉冲激励下电子发射内在机制.
英文摘要：
An antiferroelectric cathode material, lanthanum-doped lead zirconate stannate titanate （PLZST） located in the vicinity of antiferro-ferroelectric phase boundary, was prepared by solid state calcination method. The electron emission property of the novel antiferroelectric cathode under the negative triggering voltage pulses was investigated. The emission threshold value voltage from PLZST with 0.5 mm width under negative triggering pulses was 500 V. For negative triggering voltage of 500 V and extraction voltage of 3.5 kV, a large emission current of 690 A was obtained. It was indicated that the emission threshold value voltage was low and the emission current was large. Even when the triggering voltage was lower than the positive switch electric field, strong emission current can be obtained from PLZST. Finally, the mechanism of electron emission of PLZST under negative triggering pulses was discussed.
同期刊论文项目
同项目期刊论文
Synthesis and characterization of potassium bismuth titanate inverse opal
photonic crystals by sol–g
Thickness-induced resonance-based complex permittivity measurement technique for barium strontium ti
Synthesis, Crystal Structure and Blue Photoluminescence of a Metal-organic Framework Constructed fro
Tunable negative refraction based on the Pockels effect in two-dimensional photonic crystals compose
All angle negative-refraction imaging effect with complex two-dimensional hexagonal photonic crystal
Experimental observation of both negative and positive phase velocities in a two-dimensional sonic c
A candidate three-dimensional GHz left-handed metamaterial composed of coplanar magnetic and electri
Design and electrical properties’ investigation of (K0.5Na0.5)NbO3–BiMeO3 lead-free piezoelectric ce
High Tm lead-free relaxor ferroelectrics with broad temperature usage range: 0.04BiScO3?0.96(K0.5Na0
Polymorphic phase transition dependence of piezoelectric properties in (K0.5Na0.5)NbO3–(Bi0.5K0.5)Ti
Structure and electrical properties’ investigation of (K0.5Na0.5)NbO3–(Bi0.5Na0.5)TiO3 lead-free pie
Sintering Characteristic, Microstructure, and Dielectric Relaxor Behavior of (K0.5Na0.5)NbO3–(Bi0.5N
Resonant condition of unitary dendritic structure with overlapping negative permittivity and permeab
An approach to further improve piezoelectric properties of (K0.5Na0.5)NbO3-based lead-free ceramics.
Adjusting the resonant frequency and loss of dendritic left-handed metamaterials with fractal dimens
The bianisotropic medium model for left-handed metamaterials and numerical calculation of negative e
Photonic bandgap and photo- luminescence in TbPO4 Inverse opal with coexistence of the (001) and (11
Crystalline properties dependence of dielectric and energy storage properties of poly(vinylidene ?uo
Electric-?eld and temperat ure induced phase transitions in Pb(Mg1/3Nb2/3)O3 –0.3PbTiO3 single cryst
Three-dimensional metamaterial microwave absorber compoased of coplanar magnetic and electric resona
Preparation and photoluminescence properties of dye doped polymerization
crystalline colloidal array
The electrodeposition of zinc oxide two-dimensional nanomesh and three-dimensional inverse opal comp
Three-level dendritic structure with simultaneously negative permeability and permittivity under nor
All-Dielectric Left-Handed Metamaterial Based on Dielectric Resonator：Design, Simulation and Experim
Effect of W, Ti co-doping on the microstructure and microwave dielectric properties of Ba5Nb4O15 cer
期刊信息
位置：