双层混合矿铁电器具有巨大的两光子吸收
Lina Li1, Xiaoying Shang2, Sasa Wang1
1State Key Laboratory of Structural Chemistry , Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Fuzhou , Fujian 350002 , China.
研究人员开发了一种具有独特量子井结构的新杂交矿铁电. 这种材料具有巨大的两光子吸收系数, 显著推进光子学应用.
科学领域:
- 材料科学
- 光子学
- 固态物理
背景情况:
- 矿铁电对于光子学至关重要,因为它们具有非线性光学吸收.
- 传统的无机矿具有有限的非线性光学吸收系数,限制了它们的应用.
- 有机-无机混合矿提供了增强性能的潜力.
研究的目的:
- 合成和表征一种新的有机-无机杂交双层矿铁电.
- 研究其铁电和非线性光学吸收特性,特别是两光子吸收 (TPA).
- 探索其对先进光子应用的潜力.
主要方法:
- 有机-无机混合二层矿铁电 (C4H9NH3) 2 ((NH2CHNH2) Pb2Br7 (1) 的合成.
- 测量库里温度和自发偏振以确认铁电性质.
- 非线性光学吸收的表征,重点是两光子吸收 (TPA) 系数.
主要成果:
- 合成材料表现出室温以上的库里温度 (~322 K) 和显著的自发极化 (~3.8 μC cm-2).
- 这种独特的量子井结构导致了5.76×10^3厘米的巨大的两光子吸收系数GW^-1.
- 这种TPA系数比传统的无机石大两倍.
结论:
- 这种新型的混合矿铁电 (1) 具有卓越的两光子吸收特性.
- 这种材料是第一个具有巨大的TPA系数的混合铁电,
- 这些发现为设计用于增强光子应用的新型铁电提供了洞察力.
更多相关视频
09:29Obtention of Giant Unilamellar Hybrid Vesicles by Electroformation and Measurement of their Mechanical Properties by Micropipette Aspiration
Published on: January 19, 2020
04:14Facile Synthesis of Colloidal Lead Halide Perovskite Nanoplatelets via Ligand-Assisted Reprecipitation
Published on: October 1, 2019
相关概念视频
IR Absorption Frequency: Hybridization
Among the sp, sp2, and sp3 hybridized orbitals, sp orbitals have the maximum s character (50%). Consequently, the electrons are held more closely to the nucleus, resulting in stronger and shorter C–H bonds that...
Hybrid Zones
Drug Absorption: Factors Affecting GI Absorption
Hybridization of Atomic Orbitals I
Hybridization of Atomic Orbitals II
Assembly of the Lipid Bilayer in the ER
A large chunk of any biological membrane is composed of phospholipids. These lipids have a heterogeneous distribution across different subcellular organelles and even between...
