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

Title
Enhancement of hole injection and electroluminescence by ordered Ag nanodot array on indium tin oxide anode in organic light emitting diode
Authors
정미Dang Mo YoonMiyoung Kim김철기이택진김재헌이석Si-Hyung Lim우덕하
Keywords
OLED; Ag nanodot array; Plasmonic property; Surface plasmon resonance
Issue Date
2014-07
Publisher
Applied physics letters
Citation
VOL 105, NO 1, 013306-1-013306-5
Abstract
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.
URI
http://pubs.kist.re.kr/handle/201004/47999
ISSN
00036951
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