ArticleNature communications2024
Giant magneto-photoluminescence at ultralow field in organic microcrystal arrays for on-chip optical magnetometer.
Article in Nature communications, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- An integrated CMOS micro search‑coil magnetometer with on‑chip calibration and a low‑noise amplifier.Microsystems & nanoengineering · 2026Article
- Spin-Dependent Photoluminescence in Carbon-Based Quantum Dots.Advanced materials (Deerfield Beach, Fla.) · 2026Article
- Observation of triplet-assisted long-distance charge-transfer exciton transport in single organic cocrystal.Nature communications · 2025Article
- Spin-related excited-state phenomena in photochemistry.National science review · 2024Article
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Authors and funding
11 authors.
Funding
Abstract
Optical detection of magnetic field is appealing for integrated photonics; however, the light-matter interaction is usually weak at low field. Here we observe that the photoluminescence (PL) decreases by > 40% at 10 mT in rubrene microcrystals (RMCs) prepared by a capillary-bridge assembly method. The giant magneto-PL (MPL) relies on the singlet-triplet conversion involving triplet-triplet pairs, through the processes of singlet fission (SF) and triplet fusion (TF) during radiative decay. Importantly, the size of RMCs is critical for maximizing MPL as it influences on the photophysical processes of spin state conversion. The SF/TF process is quantified by measuring the prompt/delayed PL with time-resolved spectroscopies, which shows that the geminate SF/TF associated with triplet-triplet pairs are responsible for the giant MPL. Furthermore, the RMC-based magnetometer is constructed on an optical chip, which takes advantages of remarkable low-field sensitivity over a broad range of frequencies, representing a prototype of emerging opto-spintronic molecular devices.
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Registered trials
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