TY - JOUR
T1 - Localization length scales of triplet excitons in singlet fission materials
AU - Bayliss, Sam L.
AU - Thorley, Karl J.
AU - Anthony, John E.
AU - Bouchiat, Hélène
AU - Greenham, Neil C.
AU - Chepelianskii, Alexei D.
N1 - Publisher Copyright:
© 2015 American Physical Society.
PY - 2015/9/21
Y1 - 2015/9/21
N2 - 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.
AB - 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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U2 - 10.1103/PhysRevB.92.115432
DO - 10.1103/PhysRevB.92.115432
M3 - Article
AN - SCOPUS:84942474935
SN - 1098-0121
VL - 92
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 11
M1 - 115432
ER -