Emission and degradation mechanism of PLED

Mitsuhiro Koden; Yasuyuki Ohnishi; Masataka Nishimura; Hideki Uchida

doi:10.1117/12.731694

16 October 2007 Emission and degradation mechanism of PLED

Mitsuhiro Koden, Yasuyuki Ohnishi, Masataka Nishimura, Hideki Uchida

Proceedings Volume 6655, Organic Light Emitting Materials and Devices XI; 66550C (2007) https://doi.org/10.1117/12.731694
Event: Photonic Devices + Applications, 2007, San Diego, California, United States

Abstract

Emission and degradation mechanism of polymer light emitting diode (PLED) was investigated by using trap analysis. The device structure in this study is ITO/PEDOT-PSS/LEP/Ba/Al, where LEP (light emitting polymer) is polyfluorene type Lumation Green 1300 series supplied from Sumation Co., Ltd. The trap behaviors of virgin and degraded devices were investigated by using the bipolar devices, the hole only devices and the electron only devices. By analyzing the results, we successfully clarified depth and density of each trap at the interfaces and bulks of this PLED device. PL aging behavior and EL aging behavior were also examined for investigating mechanisms. This study shows such novel information that carrier traps at the PEDOT-PSS/LEP interface play an important role in emission and degradation characteristics.

Citation Download Citation

Mitsuhiro Koden, Yasuyuki Ohnishi, Masataka Nishimura, and Hideki Uchida "Emission and degradation mechanism of PLED", Proc. SPIE 6655, Organic Light Emitting Materials and Devices XI, 66550C (16 October 2007); https://doi.org/10.1117/12.731694

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available