Single photon triggered dianion formation in TCNQ and F4TCNQ crystals

• Main Authors: Ma, Lin, Hu, Peng, Jiang, Hui, Kloc, Christian, Sun, Handong, Soci, Cesare, Voityuk, Alexander A., Michel-Beyerle, Maria E., Gurzadyan, Gagik G.
• Other Authors: School of Materials Science & Engineering
• Format: Article
• Language: English
• Published: 2017
• Subjects: Optical Physics; Optics and Photonics
• Online Access: https://hdl.handle.net/10356/83909; http://hdl.handle.net/10220/42838
• Institution: Nanyang Technological University

Excited state dynamics in two strong organic electron acceptor systems, TCNQ and F4TCNQ single crystals, was studied. After absorption of a single photon, dianions are formed in both crystals on ultrashort timescale. By use of transient absorption spectroscopy, we demonstrate that the dianion format...