Daisuke Matsumoto

TL;DR: It is shown that in the highly ordered lamellar microstructure of a regioregular thiophene-based conjugated polymer, a small-molecule p-type dopant can be incorporated by solid state diffusion into the layers of solubilizing side chains without disrupting the conjugate layers.

TL;DR: The spin states of single-layer graphene are shown to clarify the correlations using electron spin resonance (ESR) spectroscopy as a function of accumulated charge density using transistor structures and shows a universal phenomenon for carbon materials including CNTs.

TL;DR: In this article, the authors presented data supporting 2D Coherent Charge Transport in Highly Ordered Conducting Polymers Doped by Solid State Diffusion (SDP) accepted for publication at Nature Materials on 30th March 2016.

TL;DR: An ESR study of semiconducting single-walled CNT thin films to investigate their spin states and electrically induced charge carriers using transistor structures under device operation shows a clear correlation between the ESR decrease and the current increase under high charge density conditions, which provides a first clear evidence of antimagnetic interactions between spins of electrically inducing charge carriers and vacancies in the CNTs.

TL;DR: In this article, the dimensionality of electrically accumulated charges varied from zero dimensional to two dimensional in a regioregular poly(3-hexylthiophene) (RR-P3HT) by increasing charge densities.