Chirality

Chirality Latest News

Recent work by researchers has provided critical insights into how chiral perovskite materials crystallize, unlocking the possibility of building high-performance devices with phase-pure chiral perovskite films. 

About Chirality

• It is the property of an object being non-superimposable on its mirror image.
• It is found everywhere in nature, from spiral galaxies to the DNA in our cells.

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Chirality’s Role in Material Science

• In materials science, chirality can enable unique light–matter interactions, such as controlling the spin of electrons or detecting circularly polarized light.
• These capabilities help futuristic technologies in quantum optoelectronics, advanced sensors, and spin-based computing.
  • Example: Chiral materials can distinguish between left- and right-handed circularly polarized light and influence electron spin.
• Applications: Chirality is relevant for building devices such as circularly polarized light (CPL) detectors, spintronic components, and neuromorphic photonic synapses.

Why are Perovskites Game-Changers?

• Traditionally, most chiral materials studied have been organic in nature.
• These organic materials can interact with light effectively, but their poor electrical conductivity has limited their role in optoelectronic devices.
• On the other hand Halide perovskites bring together strong optical properties with efficient charge transport.
• When combined with chiral molecules, these low-dimensional halide perovskites can yield chiral perovskites that are both functionally versatile and structurally robust.
• Challenges:  Making high-quality chiral perovskite films for devices requires precise control over how they crystallize – something that has remained poorly understood.

Source: PIB