What question did this study set out to answer?

This research aims to enhance the efficiency of copper(I) complex-based OLEDs by controlling molecular configurations to suppress nonradiative decay.

February 8, 2026Chemical Science3 citationsOpen Access

Suppressing Nonradiative Decay via Molecular Configuration Control in Cu(I)–Halide Clusters Enables Highly Efficient Green and Green-Sensitized Blue OLEDs

XLXiao LiChinese Academy of Sciences SGSai GuoChinese Academy of Sciences XLXin Liu

Key Points

This research aims to enhance the efficiency of copper(I) complex-based OLEDs by controlling molecular configurations to suppress nonradiative decay.
Analyzed molecular configurations of Cu(I)–halide clusters
Investigated nonradiative decay mechanisms
Evaluated efficiency of green and blue OLEDs with modified configurations
Demonstrated significant reduction in nonradiative decay
Achieved higher emission efficiency in OLEDs
Showed improved film-forming ability of copper(I) complexes

Abstract

Copper(I) complexes are cost-effective and eco-friendly emitters, yet their device applications are hindered by broad emission, limited film-forming ability, and especially by severe excited-state distortions that typically lead to low...

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