March 3, 2026Open Access

High quantum yield NIR emission via charge transfer states in buckybowl-TPA based D–A systems

Key Points

Efficient near-infrared luminescence occurs in nonpolar media, achieving a quantum yield greater than 0.66.
The NIR emission results from a blend of thermally activated delayed fluorescence and room temperature phosphorescence.
Analysis of solvent effects reveals strong differences in emission characteristics between acetonitrile and hexane.
Further research could validate the potential applications of these findings in advanced optical materials.

Abstract

TPA-TOS shows strong solvent-dependent emission: weak, fast-decaying fluorescence in acetonitrile but intense NIR emission in hexane. In nonpolar media, efficient NIR luminescence ( Φ > 0.66) arises from combined TADF and RTP.

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Yakiyama et al. (Thu,) studied this question.

synapsesocial.com/papers/69a75bf4c6e9836116a2435b — DOI: https://doi.org/10.1039/d5qm00818b

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Authors

Yumi Yakiyama

Japan Science and Technology Agency

Junyi Han

Hayato Sakai

Yamagata University

Journals

Materials Chemistry Frontiers

Actions

Institutions

The University of Osaka

Japan Science and Technology Agency

Keio University

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High quantum yield NIR emission via charge transfer states in buckybowl-TPA based D–A systems

Key Points

Abstract

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Discussion

Cite this study

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Authors

Journals

Actions

Institutions

References and Citations

Citation Network

Connected Papers

Discussion

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