リーディング大学院 2017 年度修了の 小松龍太郎博士 (Dr. Ryutaro Komatsu) の高性能有機EL用ピリミジン誘導体の最近の進歩に関する「Recent Progress of Pyrimidine Derivatives for High-Performance OLEDs」と題する総説が先月に引き続き、今月の SPIE Journal of Photonics for Energy (IF: 2.287) の月間ダウンロード数3位にランクインしました。龍太郎、おめでとう！
本論文はオープンアクセスで、ピリミジンを有する発光材料、ホスト材料、電子輸送材料、エキサイプレックスホスト、熱活性化遅延蛍光（TADF）材料群に関して、85報の学術論文をまとめた総説で、2007年に城戸・笹部研から発表したピリミジン含有電子輸送材料やホスト材料を皮切りに、2017年の外部量子効率 29% を実現する水平配向性ピリミジン含有TADF材料に至るまで、関連研究を広くカバーした大作になっています。興味のある方はぜひ、ご一読下さい！
Title: Recent Progress of Pyrimidine Derivatives for High-Performance OLEDs
By Ryutaro Komatsu, Hisahiro Sasabe,* Junji Kido,* Journal of Photonics for Energy, 2018, 8, 032108.
Abstract: Pyrimidine is an electron-deficient azaaromatic compound containing two nitrogen atoms at 1, 3-positions that plays a key role as an organic semiconductor or semiconducting material. Because of the high electron-accepting property induced by C=N double bonds and due to its coordination ability, pyrimidine has been incorporated as a building block in phosphorescent emitters, fluorescent emitters, bipolar host materials, and electron transporting materials in organic light-emitting devices (OLEDs). Recently, pyrimidine-based thermally activated delayed fluorescent emitters combined with various electron donors have been developed, and their device performances were far better than those based on conventional fluorescent emitters. In this review, recent progress of pyrimidine-based OLED materials is presented and accompanied by a historical overview, current status, key issues, and outlook for the next generation of high-performance OLED materials.
