Journal
PHYSICAL REVIEW B
Volume 92, Issue 11, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.92.115432
Keywords
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Funding
- Engineering and Physical Sciences Research Council [EP/G060738/1]
- Royal Society International Exchange Scheme
- Investissements d'Avenir du LabEx PALM [ANR-10-LABX-0039-PALM]
- EPSRC Supergen SuperSolar Project
- Magdalene College, Cambridge
- National Science Foundation [CMMI-1255494]
- Engineering and Physical Sciences Research Council [EP/G060738/1, 1208395, EP/M005143/1] Funding Source: researchfish
- EPSRC [EP/M005143/1, EP/G060738/1] Funding Source: UKRI
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We measure the dielectric confinement length scales of triplet excitons in organic semiconductors by jointly measuring their microwave-domain electric and magnetic susceptibilities. We apply this technique to characterize triplet excitons in two singlet fission materials with distinct solid-state packing and correlate the extracted localization length scales with the role of the excitonic environment. By using the magnetic susceptibility simultaneously determined through our experiments, we compare the independently extracted dielectric and spin-spin localization length scales, highlighting the role of local anisotropy on the properties of excitonic triplet states.
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