TY  - JOUR
ID  - SisLab145
UR  - https://eprints.uet.vnu.edu.vn/eprints/id/eprint/145/
IS  - 9
A1  - Nguyen, Nang Dinh
A1  - Le, Ha Chi
A1  - Tran, Thi Chung Thuy
A1  - Tran, Quang Trung
A1  - Vo, Van Truong
Y1  - 2009///
N2  - With the aim of improving the photonic efficiency of an organic light emitting diode (OLED) and its display duration, both the hole transport layer (HTL) and the emitting layer (EL) were prepared as nanostructured thin films. For the HTL, nanocomposite films were prepared by spin-coating a homogeneous solution of low molecular weight poly(4-styrenesulfonate) (PEDOT-PSS) and surfactant-capped TiO2 nanocrystals onto low resistivity indium tin oxide (ITO) substrates; for the EL, nancrystalline titatium oxide (nc-TiO2)-embedded Poly2-methoxy-5-(2?-ethyl-hexyloxy)-1,4-phenylene vinylene (MEH-PPV+nc-TiO2) conjugate polymers were spin-coated onto the HTL. Also, for a shallow contact of Al/LiF/MEH-PPV instead of Al/MEH-PPV a super LiF thin film was deposited onto the EL by vacuum evaporation. The resulting multilayer OLED had the following structure of Al/LiF/MEH-PPV+nc-TiO2/PEDOT-PSS+nc-TiO2/ITO. Characterization of the nanocomposite films showed that both the current-voltage (I-V) characteristics and the photoluminescent properties of the nanocomposite materials were significantly enhanced in comparison with the standard polymers. OLEDs made from these layers would exhibit a large photonic efficiency.
JF  - Journal of Applied Physics
VL  - 105
KW  - nanocomposites;organic light emitting diodes;organic semiconductors;photoluminescence;spin coating;thin films;titanium compounds;6146-w;7363-b;7867Bf;8107-b;8115-z;8560Jb
TI  - Enhancement of Current-Voltage Characteristics of Multilayer Organic Light Emitting Diodes by using Nanostructured Composite Films
SP  - 093518
AV  - none
EP  - 093518
ER  -