Enhancement of hole injection using ozone treated Ag nanodots dispersed on indium tin oxide anode for organic light emitting diodes

Moon, Jong-Min; Bae, Jung-Hyeok; Jeong, Jin-A; Jeong, Soon-Wook; Park, No-Jin; Kim, Han-Ki; Kang, Jae-Wook; Kim, Jang-Joo; Yi, Min-Su

doi:10.1063/1.2719153

Title: Enhancement of hole injection using ozone treated Ag nanodots dispersed on indium tin oxide anode for organic light emitting diodes

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Abstract

The authors report the enhancement of hole injection using an indium tin oxide (ITO) anode covered with ultraviolet (UV) ozone-treated Ag nanodots for fac tris (2-phenylpyridine) iridium Ir(ppy){sub 3}-doped phosphorescent organic light-emitting diodes (OLEDs). X-ray photoelectron spectroscopy and UV-visible spectrometer analysis exhibit that UV-ozone treatment of the Ag nanodots dispersed on the ITO anode leads to formation of Ag{sub 2}O nanodots with high work function and high transparency. Phosphorescent OLEDs fabricated on the Ag{sub 2}O nanodot-dispersed ITO anode showed a lower turn-on voltage and higher luminescence than those of OLEDs prepared with a commercial ITO anode. It was thought that, as Ag nanodots changed to Ag{sub 2}O nanodots by UV-ozone treatment, the decrease of the energy barrier height led to the enhancement of hole injection in the phosphorescent OLEDs.

Authors:

Moon, Jong-Min; Bae, Jung-Hyeok; Jeong, Jin-A; Jeong, Soon-Wook; Park, No-Jin; Kim, Han-Ki; Kang, Jae-Wook; Kim, Jang-Joo; Yi, Min-Su ^[1]

School of Advanced Materials and Systems Engineering, Kumoh National Institute of Technology (KIT), Gumi 730-701 (Korea, Republic of)

Publication Date:: Mon Apr 16 00:00:00 EDT 2007

OSTI Identifier:: 20960232

Resource Type:: Journal Article

Journal Name:: Applied Physics Letters

Additional Journal Information:: Journal Volume: 90; Journal Issue: 16; Other Information: DOI: 10.1063/1.2719153; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951

Country of Publication:: United States

Language:: English

Subject:: 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ANODES; BEAM INJECTION; DOPED MATERIALS; ELECTRIC POTENTIAL; HOLES; INDIUM COMPOUNDS; IRIDIUM; LIGHT EMITTING DIODES; ORGANIC SEMICONDUCTORS; OZONE; PHOSPHORESCENCE; QUANTUM DOTS; SILVER OXIDES; SPECTROMETERS; TIN OXIDES; ULTRAVIOLET RADIATION; ULTRAVIOLET SPECTRA; VISIBLE SPECTRA; WORK FUNCTIONS; X-RAY PHOTOELECTRON SPECTROSCOPY

Citation Formats


                    Moon, Jong-Min, Bae, Jung-Hyeok, Jeong, Jin-A, Jeong, Soon-Wook, Park, No-Jin, Kim, Han-Ki, Kang, Jae-Wook, Kim, Jang-Joo, Yi, Min-Su, Department of Materials Science and Engineering, Seoul National University, Silim-dong, Seoul 151-741, Korea and Center for Organic Light Emitting Diodes, Seoul National University, Silim-dong, Seoul 151-741, and Department of Materials Science and Engineering, Sangju National University, Sangju, Gyeongbuk 742-711. Enhancement of hole injection using ozone treated Ag nanodots dispersed on indium tin oxide anode for organic light emitting diodes.  United States: N. p., 2007. 
        Web.  doi:10.1063/1.2719153.

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                    Moon, Jong-Min, Bae, Jung-Hyeok, Jeong, Jin-A, Jeong, Soon-Wook, Park, No-Jin, Kim, Han-Ki, Kang, Jae-Wook, Kim, Jang-Joo, Yi, Min-Su, Department of Materials Science and Engineering, Seoul National University, Silim-dong, Seoul 151-741, Korea and Center for Organic Light Emitting Diodes, Seoul National University, Silim-dong, Seoul 151-741, & Department of Materials Science and Engineering, Sangju National University, Sangju, Gyeongbuk 742-711. Enhancement of hole injection using ozone treated Ag nanodots dispersed on indium tin oxide anode for organic light emitting diodes.  United States.  https://doi.org/10.1063/1.2719153

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                    Moon, Jong-Min, Bae, Jung-Hyeok, Jeong, Jin-A, Jeong, Soon-Wook, Park, No-Jin, Kim, Han-Ki, Kang, Jae-Wook, Kim, Jang-Joo, Yi, Min-Su, Department of Materials Science and Engineering, Seoul National University, Silim-dong, Seoul 151-741, Korea and Center for Organic Light Emitting Diodes, Seoul National University, Silim-dong, Seoul 151-741, and Department of Materials Science and Engineering, Sangju National University, Sangju, Gyeongbuk 742-711. 2007.  
        "Enhancement of hole injection using ozone treated Ag nanodots dispersed on indium tin oxide anode for organic light emitting diodes".  United States.  https://doi.org/10.1063/1.2719153.

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@article{osti_20960232,

  title        = {Enhancement of hole injection using ozone treated Ag nanodots dispersed on indium tin oxide anode for organic light emitting diodes},

  author       = {Moon, Jong-Min and Bae, Jung-Hyeok and Jeong, Jin-A and Jeong, Soon-Wook and Park, No-Jin and Kim, Han-Ki and Kang, Jae-Wook and Kim, Jang-Joo and Yi, Min-Su and Department of Materials Science and Engineering, Seoul National University, Silim-dong, Seoul 151-741, Korea and Center for Organic Light Emitting Diodes, Seoul National University, Silim-dong, Seoul 151-741 and Department of Materials Science and Engineering, Sangju National University, Sangju, Gyeongbuk 742-711},

  abstractNote = {The authors report the enhancement of hole injection using an indium tin oxide (ITO) anode covered with ultraviolet (UV) ozone-treated Ag nanodots for fac tris (2-phenylpyridine) iridium Ir(ppy){sub 3}-doped phosphorescent organic light-emitting diodes (OLEDs). X-ray photoelectron spectroscopy and UV-visible spectrometer analysis exhibit that UV-ozone treatment of the Ag nanodots dispersed on the ITO anode leads to formation of Ag{sub 2}O nanodots with high work function and high transparency. Phosphorescent OLEDs fabricated on the Ag{sub 2}O nanodot-dispersed ITO anode showed a lower turn-on voltage and higher luminescence than those of OLEDs prepared with a commercial ITO anode. It was thought that, as Ag nanodots changed to Ag{sub 2}O nanodots by UV-ozone treatment, the decrease of the energy barrier height led to the enhancement of hole injection in the phosphorescent OLEDs.},

  doi          = {10.1063/1.2719153},

  url          = {https://www.osti.gov/biblio/20960232},
  journal      = {Applied Physics Letters},

  issn         = {0003-6951},

  number       = 16,

  volume       = 90,

  place        = {United States},

  year         = {Mon Apr 16 00:00:00 EDT 2007},

  month        = {Mon Apr 16 00:00:00 EDT 2007}

}

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