AVS 50th International Symposium
    Organic Films and Devices Tuesday Sessions
       Session OF+EM-TuA

Paper OF+EM-TuA7
The Application of DLC Layer for Polymeric Electroluminescent Devices

Tuesday, November 4, 2003, 4:00 pm, Room 318/319

Session: Molecular and Organic Films and Devices-Optoelectronics
Presenter: S.H. Choi, Yonsei University, Korea
Authors: S.H. Choi, Yonsei University, Korea
D.W. Han, Samsung SDI
S.M. Jeong, Yonsei University, Korea
H.K. Baik, Yonsei University, Korea
K.M. Song, Kon Kuk University, Korea
S.J. Lee, Kyungsung University, Korea
Correspondent: Click to Email
The Polymeric electroluminescent devices (PLEDs), which are included with an diamond-like-carbon (DLC) layer between indium tin oxide (ITO) and poly(styrene sulfonate)-doped poly(3,4-ethylene dioxythiophene) (PEDOT) have been fabricated. Indium diffusion, which is due to be etched ITO surface by acidic PEDOT solution into the hole transport layer can degrade the device. It has been used X-ray photoelectron spectroscopy (XPS), and Rutherford backscattering spectrometry (RBS) to measure indium contamination in PEDOT. DLC layer was deposited between hole transport layer and ITO anode by the using the Cs+ ion sputtered negative ion deposition system (CsISNIDS). It was found that device stability and efficiency were seriously affected by indium contamination in HTL and DLC layer could improve device stability. In addition it has been investigated the I-V, L-V characteristics, and Quantum efficiency as a function for a set of devices with and without DLC layer.