LED characterization of an alternating copolymer and its blends

Dong Young Kim; Jai Kyeong Kim; Hyun Nam Cho; Chung Yup Kim

doi:10.1117/12.279324

1 December 1997 LED characterization of an alternating copolymer and its blends

Dong Young Kim, Jai Kyeong Kim, Hyun Nam Cho, Chung Yup Kim

Proceedings Volume 3148, Organic Light-Emitting Materials and Devices; (1997) https://doi.org/10.1117/12.279324
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

Soluble light-emission alternating copolymers based on alkyfluorene and bis-phenylenevinylene were synthesized using Wittig coupling reaction. The PL and EL efficiency of emissive polymers increased in the blends diluted with non- emissive polymer such a PVK. The emission spectrum of the blends also became narrower than that of emissive polymer only due to the reduction of intermolecular excimer formation. The blends of emissive polymers with different band-gap energies were investigated in terms of energy transfer mechanisms. The characteristics of emissive polymer with lower band-gap energy dominates the PL and EL spectrum of blends. The quantum efficiency in the order of 0.025 percent was obtained the electrodes of ITO and aluminum.

Citation Download Citation

Dong Young Kim, Jai Kyeong Kim, Hyun Nam Cho, and Chung Yup Kim "LED characterization of an alternating copolymer and its blends", Proc. SPIE 3148, Organic Light-Emitting Materials and Devices, (1 December 1997); https://doi.org/10.1117/12.279324

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