[15a-1G-1~10] 12.4 Organic light-emitting devices and organic transistors

[15a-1G-9] Potential profile in an organic electroluminescence device observed by phase-shifting electron holography

〇Takeshi Sato¹, Kazuo Yamamoto², Miki Tsuchiya¹, Katsuji Ito¹, Ryosuke Kamiya³, Noriyuki Yoshimoto³, Yoshifumi Taniguchi¹ (1.Hitachi High-Tech., 2.JFCC, 3.Iwate Univ.)

Keywords:organic electroluminescence,electron holography,electric potential distribution

We succeeded in visualizing electric potential distribution formed in local to organic electroluminescence using phase-shifting electron holography. Furthermore, we evaluated the potential difference that occurred in the device quantitatively.