# Perovskite system preserves spin polarization for approximately 5 nanoseconds

_Published Monday, November 9, 2026 at 7:02 PM EST · Science · Latest · Tier 2 — Notable_

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Researchers led by HKUST's Lu Haipeng developed a perovskite system that preserves spin polarization approximately 300 times longer at room temperature, reaching approximately 5 nanoseconds. The study was published in Nature Photonics.

The material uses successive quantum wells of varying widths to transfer spin information along an energy gradient while reducing losses. Spin-dependent charge transport showed a polarization degree exceeding 80%.

The team also demonstrated proof-of-concept circularly polarized light detection and X-ray-triggered dissymmetric photopolymerization. These remain laboratory demonstrations of the material's properties and applications.

## Sources

- [Phys.org](https://phys.org/news/2026-11-perovskite-room-temperature-polarization-successive.html)

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Canonical: https://techandbusiness.org/newswire/BATv0_0RHwqR209jF1MEzt
Published: 2026-11-10T00:02:45.310Z
Story chronology: 2026-11-09T22:20:10.000Z
Retrieved: 2026-11-10T03:08:48.261Z
Publisher: Tech & Business (techandbusiness.org)