Browse > Article

Electrical and optical properties of doped indium tin oxide thin films for top emission organic light emission devices  

Jung, C.H. (SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University)
Kang, Y.K. (School of Advanced Materials Science & Engineering, Sungkyunkwan University)
Yoon, D.H. (SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, School of Advanced Materials Science & Engineering, Sungkyunkwan University)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.18, no.4, 2008 , pp. 160-164 More about this Journal
Abstract
Insulating and conducting 12CaO ${\cdot}7Al_2O_3$ (Cl2A7)-doped indium tin oxide (ITO) (ITO:Cl2A7 insulator and electride) thin films were deposited on glass substrates by an RF magnetron co-sputtering method with increasing number of insulating and conducting Cl2A7 target chips. The structural, electrical and optical properties of these films were investigated. The carrier concentration decreased and resistivity increased in the films with increasing number of Cl2A7 target chips. The optical transmittance of all of the thin films was above 80 % in the visible wavelength range. The structural property and surface roughness of the films were examined and the decrease of crystallinity and surface roughness was strongly dependent on the change of grain size.
Keywords
12CaO $7Al_2O_3$; Top emission organic light emission devices; Indium tin oxide;
Citations & Related Records
연도 인용수 순위
  • Reference
1 G. Gu, V. Bulovic, P.E. Burrows, S.R. Forrest and M.E. Thompson, "Transparent organic light emitting devices", Appl. Phys. Lett. 68 (1996) 2606   DOI
2 H. Honoso and Y. Abe, "Occurrence of superoxide radical ion in crystalline $12CaO{\cdot}7Al_{2}O_3$ prepared via solidstate reactions", Inorg. Chem. 26 (1987) 1192   DOI
3 K. Hayashi, M. Hirano, S. Matsuishi and H. Hosono, "Microporous crystal $12CaO{\cdot}7Al_{2}O_3$ encaging abundant $O^-$ radicals", J. Am. Chem. Soc. 124 (2002) 738   DOI   ScienceOn
4 C.H. Jung, P.H. Tai, Y.K. Kang, D.S. Jang and D.H. Yoon, "$12CaO{\cdot}7Al_{2}O_3$ doped indium-tin-oxide thin film for transparent cathode in organic light-emitting devices", Surf. Coat. Technol., in press.
5 J.R. Sheats, H. Antoniadis, M. Hueschen,W. Leonard, J. Miller, R. Moon, D. Roitman and A. Stocking, "Organic Electroluminescent Devices", Science 273 (1996) 884   DOI   ScienceOn
6 K. Hayashi, S. Matsuishi, T. Kamiya, M. Hirano and H. Hosono, "Light-induced conversion of an insulating refractory oxide into a persistent electronic conductor", Nature 419 (2002) 462   DOI   ScienceOn
7 S. Kim, S. Matsuishi, T. Nomura, Y. Kubota, M. Takata, K. Hayashi, T. Kamiya, M. Hirano and H. Hosono, "Metallic state in a lime-alumina compound with nanoporous structure", Nano Lett. 7 (2007) 1138   DOI   ScienceOn
8 T. Uchida, S. Kaneta, M. Ichihara, M. Ohtsuka, T. Otomo and D.R. Marx, " Flexible transparent organic light emitting devices on plastic films with alkali metal doping as electron injection layer", Jan. J. Appl. Phys. 44 (2005) L282   DOI
9 S. Matsuishi, Y. Toda, M. Miyakawa, K. Hayashi, T. Kamiya, M. Hirano, I. Tanaka and H. Hosono, "Highdensity electron anions in a nanoporous single crystal: $[Ca_{24}Al_{28}O_{64}]^{4+}(4e^{-}$)", Science 301 (2003) 626   DOI   ScienceOn
10 K. Hayashi, S. Matsuishi, N. Ueda, M. Hirano and H. Hosono, "Maximum incorporation of oxygen radicals $O^−$ and $O^{2−}$, into $12CaO{\cdot}7Al_{2}O_3$ with a Nanoporous Structure", Chem. Mater. 15 (2003) 1851   DOI   ScienceOn
11 L.S. Hung, C.W. Tang and M.G. Mason, "Enhanced electron injection in organic electroluminescence devices using an Al/LiF electrode", Appl. Phys. Lett. 70 (1997) 152   DOI   ScienceOn
12 V. Bulovic, G. Gu, P.E. Burrows, M.E. Thomson and S.R. Forrest, "Transparent light-emitting devices", Nature (London) 380 (1996) 29   DOI
13 T. Sasaoka, M. Sekiya, A. Yumoto, J. Yamada, T. Hirano, Y. Iwase, T. Yamada, T. Ishibashi, T. Mori, M. Asano, S. Tamura and T. Urabe, "A 13.0-inch AMOLED display with top emitting structure and adaptive current mode programmed pixel circuit (TAC)", SID'01 DIGET (2001) p. 384
14 C.W. Tang, S.A. VanSlyke and C.H. Chen, "Electroluminescence of doped organic thin films", J. Appl. Phys. 65 (1989) 3610   DOI
15 H. Suzuki and M. Hikita, "Organic light-emitting diodes with radio frequency sputter-deposited electron injecting electrodes", Appl. Phys. Lett. 68 (1996) 2276   DOI