Chirality‐Dependent Second‐Order Nonlinear Optical Effect in 1D Organic–Inorganic Hybrid Perovskite Bulk Single Crystal. (28th July 2021)

• Record Type: Journal Article
• Authors: Fu, Dongying; Xin, Jianli; He, Yueyue; Wu, Shichao; Zhang, Xinyuan; Zhang, Xian‐Ming; Luo, Junhua
• Is Part Of: Angewandte Chemie. Volume 133:Number 36(2021)
• Page Start: 20174
• Page End: 20179
• Publication Date: 2021-07-28
• Subjects: bulk single crystals -- chirality -- circular polarization -- hybrid perovskites -- second harmonic generation circular dichroism; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.202108171
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: The introduction of chirality into organic–inorganic hybrid perovskites (OIHPs) is expected to achieve excellent photoelectric and nonlinear materials related to circular dichroism. Owing to the existence of asymmetric center and intrinsic chirality in the chiral OIHPs, the different efficiencies of second harmonic generation (SHG) signal occurs when the circularly polarized light (CPL) with different phases passes through the chiral crystal, which is defined as second harmonic generation circular dichroism (SHG‐CD). Here, the SHG‐CD effect is developed in bulk single crystals of chiral one‐dimensional (1D) [( R / S )‐3‐aminopiperidine]PbI4 . It is the first time that CPL is distinguished using chirality‐dependent SHG‐CD effect in OIHPs bulk single crystals. Such SHG‐CD technology extends the detection range to near infrared region (NIR). In this way, the anisotropy factor (gSHG‐CD ) through SHG‐CD signal is as high as 0.21. Abstract : Bulk organic–inorganic hybrid perovskite single crystals are used to effectively distinguish the circularly polarized light in the near infrared region by chirality‐dependent second harmonic generation circular dichroism (SHG‐CD) effect with a high anisotropy factor (gSHG‐CD =0.21).