What question did this study set out to answer?

The aim is to explore Cr3+-Cr3+ ion pairs luminescence and achieve controllable coupling strength for practical applications.

June 3, 2026

Chromium ion pair luminescence with controllable coupling strength

Key Points

The aim is to explore Cr3+-Cr3+ ion pairs luminescence and achieve controllable coupling strength for practical applications.
Examined Cr3+-Cr3+ ion pairs luminescence in K2Zr1-δTiδAl(PO4)3:Cr3+ materials.
Investigated the effects of coupling strength on photoluminescent quantum yield (PLQY).
Demonstrated a significant increase in PLQY with optimized coupling conditions.
Achieved long-wavelength near-infrared emission suitable for smart spectroscopy applications.

Abstract

Cr3+-Cr3+ ion pairs luminescence is promising in developing long-wavelength near-infrared emission with high PLQY for the emerging smart spectroscopy applications. Herein, we achieve controllable Cr3+-Cr3+ ion pairs coupling in K2Zr1-δTiδAl(PO4)3:Cr3+...

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