DOI: 10.1063/1.2430511. Improved performances of organic light-emitting diodes with metal oxide as anode buffer

Improved performances of organic light-emitting diodes with metal oxide as anode buffer

10.1063/1.2430511

Crossref journal-article

AIP Publishing

Journal of Applied Physics (317)

Abstract

We demonstrate extremely stable and highly efficient organic light-emitting diodes (OLEDs) based on molybdenum oxide (MoO3) as a buffer layer on indium tin oxide (ITO). The significant features of MoO3 as a buffer layer are that the OLEDs show low operational voltage, high electroluminescence (EL) efficiency and good stability in a wide range of MoO3 thickness. A green OLED with structure of ITO∕MoO3∕N,N′-di(naphthalene-1-yl)-N,N′-diphenyl-benzidene (NPB)∕NPB: tris(8-hydroxyquinoline) aluminum (Alq3):10-(2-benzothiazolyl)-2,3,6,7-tetrahydro-1,1,7,7-tetramethyl-1H, 5H, 11H-(1)-benzopyropyrano(6,7-8-i,j)quinolizin-11-one (C545T)∕Alq3∕LiF∕Al shows a long lifetime of over 50000h at 100cd∕m2 initial luminance, and the power efficiency reaches 15lm∕W. The turn-on voltage is 2.4V, and the operational voltage at 1000cd∕m2 luminance is only 6.9V. The significant enhancement of the EL performance is attributed to the improvement of hole injection and interface stability at anode.

Bibliography

You, H., Dai, Y., Zhang, Z., & Ma, D. (2007). Improved performances of organic light-emitting diodes with metal oxide as anode buffer. Journal of Applied Physics, 101(2).

Authors 4

Han You (first)
Yanfeng Dai (additional)
Zhiqiang Zhang (additional)
Dongge Ma (additional)

References 15 Referenced 266

10.1063/1.359056 / J. Appl. Phys. (1995)
10.1063/1.118344 / Appl. Phys. Lett. (1997)
10.1063/1.370948 / J. Appl. Phys. (1999)
10.1088/0268-1242/20/12/012 / Semicond. Sci. Technol. (2005)
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10.1063/1.1331639 / Appl. Phys. Lett. (2001)
10.1063/1.1489503 / Appl. Phys. Lett. (2001)
10.1021/cm040081o / Chem. Mater. (2004)
10.1021/la020481v / Langmuir (2002)
10.1063/1.117151 / Appl. Phys. Lett. (1996)
10.1063/1.123809 / Appl. Phys. Lett. (1999)
10.1088/0022-3727/29/11/004 / J. Phys. D (1996)
10.1063/1.1522812 / J. Appl. Phys. (2002)
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Dates

Type	When
Created	18 years, 7 months ago (Jan. 20, 2007, 6:01 p.m.)
Deposited	2 years, 1 month ago (July 26, 2023, 9:12 p.m.)
Indexed	1 month ago (July 30, 2025, 11:12 a.m.)
Issued	18 years, 7 months ago (Jan. 15, 2007)
Published	18 years, 7 months ago (Jan. 15, 2007)
Published Online	18 years, 7 months ago (Jan. 22, 2007)
Published Print	18 years, 7 months ago (Jan. 15, 2007)

Funders 0

None

BibTeX

@article{You_2007, title={Improved performances of organic light-emitting diodes with metal oxide as anode buffer}, volume={101}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.2430511}, DOI={10.1063/1.2430511}, number={2}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={You, Han and Dai, Yanfeng and Zhang, Zhiqiang and Ma, Dongge}, year={2007}, month=jan }

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  "abstract": "<jats:p>We demonstrate extremely stable and highly efficient organic light-emitting diodes (OLEDs) based on molybdenum oxide (MoO3) as a buffer layer on indium tin oxide (ITO). The significant features of MoO3 as a buffer layer are that the OLEDs show low operational voltage, high electroluminescence (EL) efficiency and good stability in a wide range of MoO3 thickness. A green OLED with structure of ITO\u2215MoO3\u2215N,N\u2032-di(naphthalene-1-yl)-N,N\u2032-diphenyl-benzidene (NPB)\u2215NPB: tris(8-hydroxyquinoline) aluminum (Alq3):10-(2-benzothiazolyl)-2,3,6,7-tetrahydro-1,1,7,7-tetramethyl-1H, 5H, 11H-(1)-benzopyropyrano(6,7-8-i,j)quinolizin-11-one (C545T)\u2215Alq3\u2215LiF\u2215Al shows a long lifetime of over 50000h at 100cd\u2215m2 initial luminance, and the power efficiency reaches 15lm\u2215W. The turn-on voltage is 2.4V, and the operational voltage at 1000cd\u2215m2 luminance is only 6.9V. The significant enhancement of the EL performance is attributed to the improvement of hole injection and interface stability at anode.</jats:p>",
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