M1 早坂裕哉君 (Yuya Hayasaka) の TADF 挙動を示す強発光性ターピリジン誘導体に関する「Highly luminescent π-conjugated terpyridine derivatives exhibiting thermally activated delayed fluorescence」と題するの論文が、Wiley の Chemistry-A European Journal (IF: 5.771) の Hot Paper に選出され、Inside front cover に掲載されます！M1 早坂、ならびに、TADF チームの D2 小松、M1 中尾、おめでとうございます！
By H. Sasabe*, Y. Hayasaka, R. Komatsu, K. Nakao, J. Kido*, Chem. Eur. J, accepted. Selected as a Hot Paper!
Abstract: Typically, luminescent π-conjugated 2,2′;6′,2′′-terpyridine (tpy) derivatives are versatile components for tridentate metal ligands, supramolecular materials, two-photon absorption bioimaging probes, fluorescent ion sensors, and organic light-emitting devices. However, a limited number of luminescent tpy materials, except metal complexes, have been reported. This study introduces a series of π-conjugated tpy derivatives that exhibit strong thermally activated delayed fluorescence (TADF). We observe that a blue tpy emitter outperforms conventional fluorescent emitters. Additionally, a green tpy emitter exhibits a performance that is almost comparable to that of its green phosphorescent counterparts by realizing an external quantum efficiency close to 25% and a power efficiency exceeding 80 lm W–1 with an exceptionally low efficiency roll-off. This study demonstrates the first example of highly luminescent tpy-based TADF emitters.
