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Dive into the research topics where Taiki Watanabe is active.

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Featured researches published by Taiki Watanabe.


SID Symposium Digest of Technical Papers | 2007

69.2: High Efficiency Red‐Emission Phosphorescent Polymer Lighting Emitting Diodes Based on Ir(piq)3 Derivatives

Jinsong Huang; Yang Yang; Taiki Watanabe; Kazunori Ueno

In this paper, several kinds Ir(piq)3 derivatives are used as dopants in polyfluorene to fabricate high performance pure red emission phosphorescent polymer light-emitting-diodes. Electron injection/hole blocking layer Cs2CO 3 is inserted between light emitting polymer layer and Al cathode. By modulating the electron injection ability from cathode using Cs2CO3 nano-thick layer, electron current can be controlled precisely to balance hole current. Peak efficiencies of 16.9 cd/A and 17.6 lm/W at 220cd/m2 is achieved.


Advanced Materials | 2007

Highly Efficient Red‐Emission Polymer Phosphorescent Light‐Emitting Diodes Based on Two Novel Tris(1‐phenylisoquinolinato‐C2,N)iridium(III) Derivatives

Jinsong Huang; Taiki Watanabe; Kazunori Ueno; Yang Yang


Archive | 2007

Light-emitting material and light-emitting device

Akira Tsuboyama; Koichi Suzuki; Taiki Watanabe; Kazunori Ueno


Archive | 2013

Azo compound, pigment dispersant containing the azo compound, pigment composition, pigment dispersion and toner

Masashi Kawamura; Yasuaki Murai; Waka Hasegawa; Yuki Hasegawa; Takayuki Toyoda; Taiki Watanabe; Masanori Seki; Chiaki Nishiura; Ayano Mashida; Masashi Hirose


Archive | 2008

Fluorene compound, organic light emitting device and display device using the fluorene compound

Taiki Watanabe; Kazunori Ueno; Koichi Suzuki; Yohei Iwasaki


Archive | 2013

BLACK TONER CONTAINING COMPOUND HAVING AZO SKELETON

Yasuaki Murai; Takayuki Toyoda; Waka Hasegawa; Yuki Hasegawa; Masashi Kawamura; Taiki Watanabe; Masanori Seki; Chiaki Nishiura; Ayano Mashida; Masashi Hirose


Archive | 2006

1,8-naphthyridine compound and organic light-emitting device using the same

Koichi Suzuki; Hiroshi Tanabe; Chika Negishi; Taiki Watanabe; Akihiro Senoo; Kazunori Ueno


Archive | 2013

Magenta toner containing compound having azo skeleton

Takayuki Toyoda; Yasuaki Murai; Waka Hasegawa; Yuki Hasegawa; Masashi Kawamura; Taiki Watanabe; Masanori Seki; Chiaki Nishiura; Ayano Mashida; Masashi Hirose


Archive | 2008

Organic light-emitting device and display apparatus

Yohei Iwasaki; Taiki Watanabe; Satoru Shiobara; Koichi Suzuki; Kazunori Ueno


Archive | 2016

Aqueous ink, ink cartridge, and ink jet recording method

Takakazu Mizutani; Koichi Suzuki; Ryuji Higashi; Taiki Watanabe

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