Alternating chiral and achiral spacers for constructing two-dimensional chiral hybrid perovskites toward circular-polarization-sensitive photodetection

Shihai You; Panpan Yu; Tingting Zhu; Qianwen Guan; Jianbo Wu; Hongliang Dai; Haiqing Zhong; Zeng-Kui Zhu; Junhua Luo

doi:10.1039/d3mh00745f

Alternating chiral and achiral spacers for constructing two-dimensional chiral hybrid perovskites toward circular-polarization-sensitive photodetection

Mater Horiz. 2023 Oct 30;10(11):5307-5312. doi: 10.1039/d3mh00745f.

Authors

Shihai You^{1

2}, Panpan Yu³, Tingting Zhu^{1

2}, Qianwen Guan^{1

2

4}, Jianbo Wu^{1

2

4}, Hongliang Dai³, Haiqing Zhong¹, Zeng-Kui Zhu^{1

2}, Junhua Luo^{1

2

3

4}

Affiliations

¹ State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China. jhluo@fjirsm.ac.cn.
² Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, China.
³ Key Laboratory of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, China.
⁴ University of Chinese Academy of Sciences, Beijing 100049, China.

PMID: 37750819
DOI: 10.1039/d3mh00745f

Abstract

The intrinsic integration of structural flexibility, chiroptical activity, and photoelectric properties endows the two-dimensional (2D) chiral hybrid perovskites (CHPs) with significant application potential in chiroptoelectronics and spintronics. However, the scarcity of suitable chiral organic ligands severely hinders their extensive construction, necessitating the development of new strategies for designing 2D CHPs. Herein, by exploiting a half substitution method, we created a pair of 2D CHPs with alternating cations in the interlayer space (ACI), (R/S-PPA)(PA)PbBr₄ (2R/2S, PPA = 1-phenylpropylamine, PA = n-pentylamine), from the achiral Ruddlesden-Popper (RP) (PA)₂PbBr₄ (1). The successful chirality transfer induces 2R/2S to crystallize in the chiral P2₁2₁2₁ space group and thus acquire appealing chiroptical activity. Consequently, the single-crystal devices of 2R exhibit good distinguishability to the left- and right-handed circularly polarized 405 nm lights with a photocurrent dissymmetric factor of 0.10 at 10 V bias. This work demonstrates an intriguing achiral RP to chiral ACI motif reconstruction in 2D halide hybrid perovskites, opening a door for expanding the family of 2D CHPs.