Soichiro Nakatsuka

TL;DR: Ultrapure blue-fluorescent molecules based on thermally activated delayed fluorescence are developed that exhibit a deep blue emission at 467 nm with a full-width at half-maximum of 28 nm and an internal quantum efficiency of ≈100%, which represent record-setting performance for blue OLED devices.

TL;DR: The development of a one-step borylation of 1,3-diaryloxybenzenes is reported, yielding novel boron-containing polycyclic aromatic compounds, which possess high singlet-triplet excitation energies as a result of localized frontier molecular orbitals induced by bor on and oxygen.

TL;DR: Novel boron-fused double [5]helicenes were synthesized from hexabromobenzene in two steps via Hart reaction and demethylative cyclization, enabling optical resolution and excellent ambipolar conductivity.

TL;DR: This work synthesized multiple heteroatom-substituted graphene nanoribbons and showed that AFM can directly resolve elemental differences and can be correlated to the van der Waals radii, as well as the modulated local electron density caused by the substitution.

TL;DR: A divergent synthesis of heteroatom-centered 4,8,12-triazatriangulenes was explored, which involved the preparation of a nitrogen-containing macrocyclic precursor and subsequent central heteroatoms introduction by electrophilic C-Li and C-H substitution.