Molecular stacking controlling coherent and incoherent singlet fission in polymorph rubrene single crystals

• Published in: Aggregate (Hoboken) Vol. 4; no. 5
• Main Authors: Liu, Yanping, Yang, Xuexiao, Ye, Lei, Ma, Haibo, Zhu, Haiming
• Format: Journal Article
• Language: English
• Published: Guangzhou John Wiley & Sons, Inc 01.10.2023; Wiley
• Subjects: electronic couplings; rubrene; Single crystals; singlet fission; Spectrum analysis; Temperature effects; transient absorption spectroscopy; triplet pair; Triplets
• ISSN: 2766-8541; 2692-4560
• DOI: 10.1002/agt2.347

Singlet fission (SF) is an appealing process where one photoexcited singlet transforms to two triplets, which can overcome thermalization energy loss and improve solar cell efficiency. However, it remains unclear how intermolecular coupling, which is subject to molecular stacking, controls SF pathwa...