Enhancement of hole injection and electroluminescence by ordered Ag nanodot array on indium tin oxide anode in organic light emitting diode

Journal Article · Mon Jul 07 04:00:00 EDT 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4890135· OSTI ID:22303959

Jung, Mi ^[1]; Mo Yoon, Dang; Kim, Miyoung ^[2]; Kim, Chulki; Lee, Taikjin; Hun Kim, Jae; Lee, Seok; Woo, Deokha ^[1]; Lim, Si-Hyung ^[3]

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1. Sensor System Research Center, Korea Institute of Science and Technology, Seoul 136-791 (Korea, Republic of)
2. Korea Printed Electronics Center, Korea Electronics Technology Institute, Jeollabuk-do, 561-844 (Korea, Republic of)
3. School of Mechanical Systems Engineering, Kookmin University, Seoul 136-702 (Korea, Republic of)

We report the enhancement of hole injection and electroluminescence (EL) in an organic light emitting diode (OLED) with an ordered Ag nanodot array on indium-tin-oxide (ITO) anode. Until now, most researches have focused on the improved performance of OLEDs by plasmonic effects of metal nanoparticles due to the difficulty in fabricating metal nanodot arrays. A well-ordered Ag nanodot array is fabricated on the ITO anode of OLED using the nanoporous alumina as an evaporation mask. The OLED device with Ag nanodot arrays on the ITO anode shows higher current density and EL enhancement than the one without any nano-structure. These results suggest that the Ag nanodot array with the plasmonic effect has potential as one of attractive approaches to enhance the hole injection and EL in the application of the OLEDs.

• OSTI ID: 22303959
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 1 Vol. 105; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
77 NANOSCIENCE AND NANOTECHNOLOGY
ALUMINIUM OXIDES
ANODES
CURRENT DENSITY
ELECTROLUMINESCENCE
EQUIPMENT
EVAPORATION
HOLES
INDIUM OXIDES
INJECTION
LIGHT EMITTING DIODES
NANOPARTICLES
ORGANIC SEMICONDUCTORS
QUANTUM DOTS
TIN ADDITIONS