Samsung Electronics Co., Ltd.

University of California

Gwangju Institute of Science and Technology

Sung Heum Park

Sang-Yoon Lee

Alan J Heeger

Kwanghee Lee

Do-hwan Kim

Kwang Hee Lee

Shinuk Cho

Young Eup Jin

Byoung Hoon Lee

Jae-Kwan Lee

A light emitting device may include a first electrode on a substrate, a first emission layer on the first electrode, a buffer layer on the first emission layer, a middle electrode on the buffer layer, a second emission layer on the middle electrode, and a second electrode on the second emission layer. The buffer layer may include a material selected from the group consisting of a metal oxide, a polyelectrolyte, and a combination thereof. The first emission layer, buffer layer, middle electrode, and second emission layer may be fabricated using a wet process.

Light emitting device and method of fabricating the same

Disclosed are a p-doped conjugated polymer electrolyte and an organic electronic device using the same. The p-doped conjugated polymer electrolyte according to the present invention not only has an outstanding hole-transport capability but can also act as an electron-blocking layer and hence can be used in organic electronic devices, such as organic light-emitting devices or organic solar cells, in order to improve the light-emitting efficiency of the organic light-emitting device or the energy-conversion efficiency of the organic solar cell. Also, because the charge on the p-doped conjugated polymer electrolyte is almost completely neutral, the present invention can solve the problem of anode corrosion and make a positive contribution to increased life-cycle of the device.

P-doped conjugated polymer electrolyte and an organic electronic device using the same

Growing community of inventors

Gwangju, South Korea

Sung Heum Park