Low temperature condensed state physics group (headed by Prof. Sasaki) has successfully found a nano-crystallization of PEDOT molecules in the conductive organic polymer film PEDOT:PSS under the collaboration with Japan Synchrotron Science Research Institute (JASRI/SPring-8) and University of Yamanashi. This discovery clearly shows that the high electrical conductivity of the polymer films is induced by the characteristic hierarchic structure based on the nano-crystallization. The results would enable us to fabricate the conductive polymer films with higher performance in future. This research result was published in “Macromolecules” by American Chemical Society (April 26, 2012) and was reported in a newspaper of Nikkan Kogyo Shimbun (May 2, 2012).
Nano-crystallization of polymer films enhances electrical conductivity. - a new way of fabrication method for high performance of the flexible printed circuits and transparent electrodes without rare metals -