Observation of Frenkel and charge transfer excitons in pentacene single crystals using spectroscopic generalized ellipsometry

• Main Authors: Qi, Dongchen, Su, Haibin, Bastjan, M., Jurchescu, O. D., Palstra, T. M., Wee, Andrew T. S., Rübhausen, M., Rusydi, A.
• Other Authors: School of Materials Science & Engineering
• Format: Article
• Language: English
• Published: 2013
• Subjects: DRNTU::Engineering::Materials
• Online Access: https://hdl.handle.net/10356/101034; http://hdl.handle.net/10220/18302
• Institution: Nanyang Technological University

We report on the emerging and admixture of Frenkel and charge transfer (CT) excitons near the absorption onset in pentacene single crystals. Using high energy-resolution spectroscopic generalized ellipsometry with in-plane polarization dependence, the excitonic nature of three lowest lying excitatio...