Bulk Chiral Halide Perovskite Single Crystals for Active Circular Dichroism and Circularly Polarized Luminescence.,The Journal of Physical Chemistry Letters

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Bulk Chiral Halide Perovskite Single Crystals for Active Circular Dichroism and Circularly Polarized Luminescence.
The Journal of Physical Chemistry Letters ( IF 4.8 ) Pub Date : 2020-02-10 , DOI: 10.1021/acs.jpclett.9b03718
Yangyang Dang _{1,

2} , Xiaolong Liu _{2,

3} , Yajing Sun ₁ , Jiewu Song ₂ , Wenping Hu ₁ , Xutang Tao ₂

Affiliation

Motivated by the chirality research of the hybrid halide perovskite, we reported the controllable growth of single crystals of (R)-, (S)-, and (R,S)-C6H5CH(CH3)NH3 (MBA)-based lead (Pb) halide perovskites. The crystal structures were redetermined and further refined to clarify the previously ambiguous crystal structure problems. We further investigated the chiral optical properties of these single crystals including nonlinear optical (NLO) properties and photoluminescence (PL) properties. The as-fabricated (R)- and (S)-MBAPbBr3 single crystals not only show notable circular dichroism (CD) signals in the absorption spectra but also exhibit obvious circularly polarized luminescence (CPL) characteristics. The available chiral hybrid perovskite single crystals open up the possibility to study these intrinsic chirality properties for optoelectronic applications.

中文翻译：

块状手性卤化物钙钛矿单晶，用于主动圆二色性和圆偏振发光。

基于杂化卤化物钙钛矿的手性研究的动机，我们报道了基于（R）-，（S）-和（R，S）-C6H5CH（CH3）NH3（MBA）的铅（Pb）单晶的可控生长）卤化物钙钛矿。重新确定晶体结构并进一步完善，以澄清先前模棱两可的晶体结构问题。我们进一步研究了这些单晶的手性光学性质，包括非线性光学（NLO）性质和光致发光（PL）性质。制成的（R）-和（S）-MBAPbBr3单晶不仅在吸收光谱中显示出明显的圆二色性（CD）信号，而且还表现出明显的圆偏振发光（CPL）特性。

更新日期：2020-02-17

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