Photoinduced Growth of Ferroelectric Charge Order in Organic Dimer-Mott insulator K. Itoh, H. Itoh, S. Iwai, M. Naka, S. Ishihara, S. Saito, N. Yoneyama and T. Sasaki EPJ Web of Conferences, 41 (2013) 03020 Published online: 13 March 2013 DOI: 10.1051/epjconf/20134103020