Phonon-driven control of electronic properties in hybrid perovskites and organic charge-transfer salts (B07+)

杂化钙钛矿和有机电荷转移盐中电子特性的声子驱动控制 (B07)

• 批准号: 444845210
• 金额: --
• 依托单位: Max-Planck-Institut für Polymerforschung
• 依托单位国家: 德国
• 项目类别: CRC/Transregios
• 财政年份: 2020
• 资助国家: 德国
• 起止时间: 2019-12-31 至 2023-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/444845210?language=en
• 关键词: Phonon; driven; control; electronic; properties

The project B07 (Kim/Bonn) studies selective lattice deformations to control phase transitions and collective electronic properties. Selectivity is achieved by exciting optically active phonons using resonant light pulses in the terahertz spectral range. For two model systems exhibiting strong electron-phonon coupling, hybrid organic-inorganic perovskites and molecule-based charge-transfer salts, we aim to induce structural phase transition by manipulating a single phonon mode and to understand how the ferroelectric order is coupled to phonons.

项目B07（KIM/BONN）研究了选择性晶格变形以控制相变和集体电子特性。选择性是通过在Terahertz光谱范围内使用谐振光脉冲的激动人心的光学音量来实现的。对于表现出强电子偶联的两个模型系统，混合有机 - 无机钙钛矿和基于分子的电荷转移盐，我们的目的是通过操纵单个声子模式来诱导结构相变，并了解如何将铁电序耦合到呼声子。