Terahertz radiation is emitted from hybrid organic–inorganic perovskites following light absorption. This enables an ultrafast probing of the charge‐separation dynamics and carrier–lattice coupling, even under illumination conditions equivalent to 1 sun, as described by Burak Guzelturk, Aaron M. Lindenberg, and co‐workers in article number 1704737. Initial charge separation is shown to be diffusive in nature and not driven by surface fields or ferroelectricity. Strong carrier–lattice coupling is evidenced via coherently driven terahertz‐frequency lattice oscillations.

中文翻译：

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太赫兹发射：超快电荷分离和强电子-声子耦合驱动的混合钙钛矿的太赫兹发射（Adv。Mater。11/2018）

太赫兹辐射是光吸收后从杂化的有机-无机钙钛矿发出的。如Burak Guzelturk，Aaron M. Lindenberg及其同事在文章编号1704737中所述，即使在相当于1个太阳的光照条件下，这也能够超快地探测电荷分离动力学和载流子-晶格耦合。表现出本质上是扩散性的，不受表面场或铁电的驱动。通过相干驱动的太赫兹频率晶格振荡证明了强的载波-晶格耦合。