Search research articles

关于 JoVE

概览领导团队博客 JoVE 帮助中心

作者

出版流程编辑委员会范围与政策同行评审常见问题投稿

图书馆员

用户评价订阅访问资源图书馆顾问委员会常见问题

研究

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments 存档

教育

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual 教师资源中心教师网站

使用条款与条件

相关概念视频

Photoelectric Effect

Photoelectric Effect

When light of a particular wavelength strikes a metal surface, electrons are emitted. This is called the photoelectric effect. The minimum frequency of light that can cause such emission of electrons is called the threshold frequency, which is specific to the metal. Light with a frequency lower than the threshold frequency, even if it is of high intensity, cannot initiate the emission of electrons. However, when the frequency is higher than the threshold value, the number of electrons ejected...

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序

Same author

Room-temperature VOC detection using light-driven metal oxide heterojunctions: principles, challenges, and prospects.

Nanoscale advances·2026

Same author

Improper geometric ferroelectricity at the monolayer limit.

Science advances·2026

Same author

Iron-Catalyzed Oxidative Coupling under Aerobic Conditions: A Decade of Progress.

ACS omega·2026

Same author

Pulsed Spray Pyrolysis for High-Quality Bismuth Ferrite Thin Films: Bi Content Enabled Tuning of Photoresponse, Ferroelectric Domains, and Charge Separation for Energy Harvesting Applications.

ACS omega·2026

Same author

A modern perspective on antiferroelectrics.

Nature materials·2026

Same author

Transforming disorder in the design of advanced high-entropy oxide electrocatalysts for zinc-air batteries.

Nature communications·2026

Search research articles

相关实验视频

Updated: Jan 17, 2026

Chemical Synthesis of Porous Barium Titanate Thin Film and Thermal Stabilization of Ferroelectric Phase by Porosity-Induced Strain

Chemical Synthesis of Porous Barium Titanate Thin Film and Thermal Stabilization of Ferroelectric Phase by Porosity-Induced Strain

Published on: March 27, 2018

在BiFeO₃中,巨大的光束和光学调节的铁电.

H Zhang^1,2, M C Nagashree³, R F Webster^2,4

¹College of Science and Engineering, Flinders Microscopy and Microanalysis, Flinders University, Bedford Park, Adelaide, SA 5042, Australia.

|September 15, 2025

概括

我们使用一种可扩展的方法在木铁 (BiFeO3) 薄膜中发现了强烈的光束约束效应. 这些片在低光功率下显示了增强的光机械特性,为新设备铺平了道路.

关键词:

比斯穆特铁酸盐的使用方法多种铁路的多种铁路视觉机械学视觉机械学摄影限制摄影限制偏振切换切换偏振切换

更多相关视频

Bulk and Thin Film Synthesis of Compositionally Variant Entropy-stabilized Oxides

Bulk and Thin Film Synthesis of Compositionally Variant Entropy-stabilized Oxides

Published on: May 29, 2018

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals

Published on: August 15, 2018

相关实验视频

Last Updated: Jan 17, 2026

Chemical Synthesis of Porous Barium Titanate Thin Film and Thermal Stabilization of Ferroelectric Phase by Porosity-Induced Strain

Chemical Synthesis of Porous Barium Titanate Thin Film and Thermal Stabilization of Ferroelectric Phase by Porosity-Induced Strain

Published on: March 27, 2018

Bulk and Thin Film Synthesis of Compositionally Variant Entropy-stabilized Oxides

Bulk and Thin Film Synthesis of Compositionally Variant Entropy-stabilized Oxides

Published on: May 29, 2018

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals

Published on: August 15, 2018

科学领域:

材料科学材料科学材料科学
凝聚物质物理学凝聚物质物理学
纳米技术纳米技术

背景情况:

双铁酸盐 (BiFeO3) 薄膜具有复杂的合顺序.
它们的光强度特性尚未得到充分研究,需要高光学功率.
光学机械应用需要高效的光物质相互作用.

研究的目的:

为了证明和描述纳米晶体BiFeO3薄膜中强烈的光约束效应.
为了研究低光功率激活对BiFeO3特性的影响.
探索溶液加工BiFeO3在光机械设备中的潜力.

主要方法:

通过化学喷雾热解合成纳米晶体BiFeO3薄膜.
在低光功率下对光强度响应的表征.
对压电,极化切换和域壁效应的评估.
测量光束约束系数的方法.

主要成果:

在低光功率 (∼1.7 × 10^4 W m^-2) 的 BiFeO3 薄膜中证明了显著的光束约束.
在压电和偏振开关中观察到由光驱动的增强.
达到了 4.5 × 10^-7 m^2 W^-1 的光收缩系数,优于散装BiFeO3 和竞争化 Perowskites.
确定了一个密集的域壁网络,促进了高效的激子分离.

结论:

可扩展的BiFeO3薄膜合成使得在低光功率下具有强大的光束限制.
与散装材料相比,纳米结构BiFeO3表现出优越的光机械性能.
这些发现支持将BiFeO3集成到先进的光传感器和多功能设备中.