Radical Polymers for Simultaneous Singlet, Doublet, and Triplet Emission and Extended Spin Coherence Time

Shengjie Wang, Zihao Zhu, Alim Abdurahman, Qiming Peng

Research output: Contribution to journalArticlepeer-review

Abstract

Luminescent radical materials with multiple spin states hold immense potential for applications in quantum information processing and spin optoelectronics, however research in this area remains limited. In this work, we report the first example of radical polymers that simultaneously exhibit singlet, doublet, and triplet state emissions at room temperature. We observed that incorporating radicals into polymers significantly amplifies the emission of triplet states, likely due to the facilitation of intersystem crossing by the radicals, efficiently mediating transitions from excited singlet states to triplet states. The direct optical readout of triplet state luminescence suggests the potential for building a spin-optical interface. Furthermore, these polymers demonstrate an extended spin coherence time of approximately 400 ns at room temperature. These findings indicate the promise of these materials for advancing quantum information storage and spin optoelectronics.

Original languageEnglish
Pages (from-to)372-378
Number of pages7
JournalMacromolecules
Volume58
Issue number1
DOIs
StatePublished - 14 Jan 2025

Fingerprint

Dive into the research topics of 'Radical Polymers for Simultaneous Singlet, Doublet, and Triplet Emission and Extended Spin Coherence Time'. Together they form a unique fingerprint.

Cite this