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Chirality

Chirality

Chirality is a term that describes the lack of mirror symmetry in an object. In other words, chiral objects cannot be superposed on their mirror images. For example, our feet are chiral, as the mirror image of the left foot, the right foot, cannot be superposed on the left foot.
Chiral objects exhibit a sense of handedness when they interact with another chiral object. For example, our left foot can only fit in the left shoe and not in the right shoe. Achiral objects — objects that have...

Chirality in Nature

Chirality in Nature

Chirality is the most intriguing yet essential facet of nature, governing life’s biochemical processes and precision. It can be observed from a snail shell pattern in a macroscopic world to an amino acid, the minutest building block of life. Most of the snails around the world have right-coiled shells because of the intrinsic chirality in their genes. All the amino acids present in the human body exist in an enantiomerically pure state, except for glycine - the sole achiral amino acid.

Prochirality

Prochirality

The concept of prochirality leads to the nomenclature of the individual faces of a molecule and plays a crucial role in the enantioselective reaction. It is a concept where two or more achiral molecules react to produce chiral products. A typical process is the reaction of an achiral ketone to generate a chiral alcohol. Here, the achiral reactant reacts with an achiral reducing agent, sodium borohydride, to generate an equimolar mixture of the chiral enantiomers of the product. For example, an...

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Related Experiment Video

Updated: Jun 16, 2025

Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells

Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells

Published on: March 19, 2017

Chiral Perovskite Single Crystals: Toward Promising Design and Application.

Lin Wang¹, Jie Ren¹, Hanying Li¹

¹MOE Key Laboratory of Macromolecular Synthesis and Functionalization, International Research Center for X Polymers, ZJU-YST Joint Research Center for Fundamental Science, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.

Materials (Basel, Switzerland)

|June 13, 2025

Summary

Chiral perovskites, synthesized with chiral ligands, exhibit unique properties for optoelectronics. This review details their synthesis, chirality transfer, and applications in circularly polarized light detection and nonlinear optics.

Keywords:

chiral perovskite single crystals chirality transfer circularly polarized light detection nonlinear optical response synthesis

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Area of Science:

Materials Science
Solid-State Chemistry
Optoelectronics

Background:

Organic-inorganic hybrid halide perovskites are leading optoelectronic materials.
Chiral perovskites, with broken inversion symmetry, offer unique optical properties.

Purpose of the Study:

To review synthesis strategies for chiral perovskite single crystals.
To explain chirality transfer mechanisms in these materials.
To discuss applications of chiral perovskites in optoelectronics.

Main Methods:

Systematic demonstration of synthesis strategies for chiral perovskite single crystals.
Elucidation of chirality transfer mechanisms from organic ligands to perovskite frameworks.
Comprehensive discussion of application examples.

Main Results:

Advances in synthesis methods for chiral perovskite single crystals are presented.
Chirality transfer mechanisms are thoroughly explained.
Applications in circularly polarized light photodetection and nonlinear optics are highlighted.

Conclusions:

Chiral perovskites hold significant promise for next-generation optoelectronic devices.
Further research into synthesis and applications is warranted.
Understanding chirality transfer is key to material design.