Investigation of Photoluminescence and Electroluminescence in Combination of Eu Complex and Blue Phosphorescent Dye Doped System. - Yuichi Hino; Hirotake Kajii; Yutaka Ohmori (IEICE Trans. Electron., 2006)

Flexible Organic Field-Effect Transistors Based on the Composites with the Same Thiophene Backbone by Wet Process. - Hirotake Kajii; Hiroshi Okuya; Shohei Fukuda; Akinori Sakakibara; Yutaka Ohmori (IEICE Trans. Electron., 2006)

Organic Photodetectors Using Triplet Materials Doped in Polyalkylfluorene. - Tatsunari Hamasaki; Taichiro Morimune; Hirotake Kajii; Yutaka Ohmori (IEICE Trans. Electron., 2008)

Organic Devices for Integrated Photonics. - Yutaka Ohmori; Hirotake Kajii (Proc. IEEE, 2009)

Multilayer Polyfluorene-Based Light-Emitting Diodes for Frequency Response Up to 100 MHz. - Hirotake Kajii; Toshinari Kojima; Yutaka Ohmori (IEICE Trans. Electron., 2011)

Influence of Polymer Gate Dielectrics on p-Channel and n-Channel Formation of Fluorene-type Polymer Light-emitting Transistors. - Hirotake Kajii; Masato Ise; Hitoshi Tanaka; Takahiro Ohtomo; Yutaka Ohmori (IEICE Trans. Electron., 2015)

Organic light-emitting and photodetector devices for flexible optical link and sensor devices: Fundamentals and future prospects in printed optoelectronic devices for high-speed modulation. - Hirotake Kajii (IEICE Electron. Express, 2017)

1.3 µm lasing of circular defect cavity photonic crystal laser with an AlOx cladding layer. - Xiuyu Zhang; Takafumi Hino; Satoshi Kasamatsu; Shobu Suga; Elbert He; Yifan Xiong; Masato Morifuji; Hirotake Kajii; Akihiro Maruta; Masahiko Kondow (IEICE Electron. Express, 2017)

Advanced dry etching of GaAs/AlGaAs multilayer wafer with InAs quantum dot for circular defect in photonic crystal laser. - Yuki Adachi; Yifan Xiong; Hanqiao Ye; Rubing Zuo; Masaya Morita; Kenta Kaichi; Ryosei Kinoshita; Masato Morifuji; Akihiro Maruta; Hirotake Kajii; Masahiko Kondow (IEICE Electron. Express, 2023)