DOI: 10.1063/1.122583. Electronic structure of 8-hydroxyquinoline aluminum/LiF/Al interface for organic electroluminescent device studied by ultraviolet photoelectron spectroscopy

Electronic structure of 8-hydroxyquinoline aluminum/LiF/Al interface for organic electroluminescent device studied by ultraviolet photoelectron spectroscopy

10.1063/1.122583

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

Electronic structures of the 8-hydroxyquinoline aluminum (Alq3)/LiF/Al and Alq3/Al interfaces were measured by ultraviolet photoelectron spectroscopy. Shifts of the highest occupied molecular orbital level and the vacuum level of the Alq3 layer due to insertion of a thin LiF layer were observed. This result indicates that the thin LiF layer at the Alq3/Al interface reduces barrier height for electron injection from the Al to Alq3. We, therefore, conclude that lowering of the driving voltage in an organic electroluminescent device with a thin LiF layer is attributable to the reduction of the barrier height.

Bibliography

Mori, T., Fujikawa, H., Tokito, S., & Taga, Y. (1998). Electronic structure of 8-hydroxyquinoline aluminum/LiF/Al interface for organic electroluminescent device studied by ultraviolet photoelectron spectroscopy. Applied Physics Letters, 73(19), 2763â2765.

Authors 4

T. Mori (first)
H. Fujikawa (additional)
S. Tokito (additional)
Y. Taga (additional)

References 7 Referenced 202

10.1063/1.98799 / Appl. Phys. Lett. (1987)
10.1063/1.118344 / Appl. Phys. Lett. (1997)
10.1063/1.359685 / J. Appl. Phys. (1995)
10.1103/PhysRevB.11.5179 / Phys. Rev. B (1975)
10.1103/PhysRevB.26.1608 / Phys. Rev. B (1982)
10.1063/1.367309 / J. Appl. Phys. (1998)
10.1143/JJAP.32.L514 / Jpn. J. Appl. Phys., Part 2 (1993)

Dates

Type	When
Created	23 years ago (July 26, 2002, 9:31 a.m.)
Deposited	1 year, 6 months ago (Feb. 3, 2024, 10:13 a.m.)
Indexed	1 month, 3 weeks ago (June 26, 2025, 8:46 a.m.)
Issued	26 years, 9 months ago (Nov. 9, 1998)
Published	26 years, 9 months ago (Nov. 9, 1998)
Published Print	26 years, 9 months ago (Nov. 9, 1998)

Funders 0

None

BibTeX

@article{Mori_1998, title={Electronic structure of 8-hydroxyquinoline aluminum/LiF/Al interface for organic electroluminescent device studied by ultraviolet photoelectron spectroscopy}, volume={73}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.122583}, DOI={10.1063/1.122583}, number={19}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Mori, T. and Fujikawa, H. and Tokito, S. and Taga, Y.}, year={1998}, month=nov, pages={2763–2765} }

JSON

{
  "indexed": {
    "date-parts": [
      [
        2025,
        6,
        26
      ]
    ],
    "date-time": "2025-06-26T12:46:56Z",
    "timestamp": 1750942016426
  },
  "reference-count": 7,
  "publisher": "AIP Publishing",
  "issue": "19",
  "content-domain": {
    "domain": [
      "pubs.aip.org"
    ],
    "crossmark-restriction": true
  },
  "published-print": {
    "date-parts": [
      [
        1998,
        11,
        9
      ]
    ]
  },
  "abstract": "<jats:p>Electronic structures of the 8-hydroxyquinoline aluminum (Alq3)/LiF/Al and Alq3/Al interfaces were measured by ultraviolet photoelectron spectroscopy. Shifts of the highest occupied molecular orbital level and the vacuum level of the Alq3 layer due to insertion of a thin LiF layer were observed. This result indicates that the thin LiF layer at the Alq3/Al interface reduces barrier height for electron injection from the Al to Alq3. We, therefore, conclude that lowering of the driving voltage in an organic electroluminescent device with a thin LiF layer is attributable to the reduction of the barrier height.</jats:p>",
  "DOI": "10.1063/1.122583",
  "type": "journal-article",
  "created": {
    "date-parts": [
      [
        2002,
        7,
        26
      ]
    ],
    "date-time": "2002-07-26T13:31:27Z",
    "timestamp": 1027690287000
  },
  "page": "2763-2765",
  "update-policy": "http://dx.doi.org/10.1063/aip-crossmark-policy-page",
  "source": "Crossref",
  "is-referenced-by-count": 202,
  "title": "Electronic structure of 8-hydroxyquinoline aluminum/LiF/Al interface for organic electroluminescent device studied by ultraviolet photoelectron spectroscopy",
  "prefix": "10.1063",
  "volume": "73",
  "author": [
    {
      "given": "T.",
      "family": "Mori",
      "sequence": "first",
      "affiliation": [
        {
          "name": "Toyota Central Research and Development Laboratories, Inc., Nagakute, Aichi, 480-1192, Japan"
        }
      ]
    },
    {
      "given": "H.",
      "family": "Fujikawa",
      "sequence": "additional",
      "affiliation": [
        {
          "name": "Toyota Central Research and Development Laboratories, Inc., Nagakute, Aichi, 480-1192, Japan"
        }
      ]
    },
    {
      "given": "S.",
      "family": "Tokito",
      "sequence": "additional",
      "affiliation": [
        {
          "name": "Toyota Central Research and Development Laboratories, Inc., Nagakute, Aichi, 480-1192, Japan"
        }
      ]
    },
    {
      "given": "Y.",
      "family": "Taga",
      "sequence": "additional",
      "affiliation": [
        {
          "name": "Toyota Central Research and Development Laboratories, Inc., Nagakute, Aichi, 480-1192, Japan"
        }
      ]
    }
  ],
  "member": "317",
  "reference": [
    {
      "key": "2024020315132893100_r1",
      "doi-asserted-by": "crossref",
      "first-page": "913",
      "DOI": "10.1063/1.98799",
      "volume": "51",
      "year": "1987",
      "journal-title": "Appl. Phys. Lett."
    },
    {
      "key": "2024020315132893100_r2",
      "doi-asserted-by": "crossref",
      "first-page": "152",
      "DOI": "10.1063/1.118344",
      "volume": "70",
      "year": "1997",
      "journal-title": "Appl. Phys. Lett."
    },
    {
      "key": "2024020315132893100_r3",
      "doi-asserted-by": "crossref",
      "first-page": "5619",
      "DOI": "10.1063/1.359685",
      "volume": "78",
      "year": "1995",
      "journal-title": "J. Appl. Phys."
    },
    {
      "key": "2024020315132893100_r4",
      "doi-asserted-by": "crossref",
      "first-page": "5179",
      "DOI": "10.1103/PhysRevB.11.5179",
      "volume": "11",
      "year": "1975",
      "journal-title": "Phys. Rev. B"
    },
    {
      "key": "2024020315132893100_r5",
      "doi-asserted-by": "crossref",
      "first-page": "1608",
      "DOI": "10.1103/PhysRevB.26.1608",
      "volume": "26",
      "year": "1982",
      "journal-title": "Phys. Rev. B"
    },
    {
      "key": "2024020315132893100_r6",
      "doi-asserted-by": "crossref",
      "first-page": "4928",
      "DOI": "10.1063/1.367309",
      "volume": "83",
      "year": "1998",
      "journal-title": "J. Appl. Phys."
    },
    {
      "key": "2024020315132893100_r7",
      "doi-asserted-by": "crossref",
      "first-page": "L514",
      "DOI": "10.1143/JJAP.32.L514",
      "volume": "32",
      "year": "1993",
      "journal-title": "Jpn. J. Appl. Phys., Part 2"
    }
  ],
  "container-title": "Applied Physics Letters",
  "original-title": [],
  "language": "en",
  "link": [
    {
      "URL": "https://pubs.aip.org/aip/apl/article-pdf/73/19/2763/18537551/2763_1_online.pdf",
      "content-type": "application/pdf",
      "content-version": "vor",
      "intended-application": "syndication"
    },
    {
      "URL": "https://pubs.aip.org/aip/apl/article-pdf/73/19/2763/18537551/2763_1_online.pdf",
      "content-type": "unspecified",
      "content-version": "vor",
      "intended-application": "similarity-checking"
    }
  ],
  "deposited": {
    "date-parts": [
      [
        2024,
        2,
        3
      ]
    ],
    "date-time": "2024-02-03T15:13:37Z",
    "timestamp": 1706973217000
  },
  "score": 1,
  "resource": {
    "primary": {
      "URL": "https://pubs.aip.org/apl/article/73/19/2763/519686/Electronic-structure-of-8-hydroxyquinoline"
    }
  },
  "subtitle": [],
  "short-title": [],
  "issued": {
    "date-parts": [
      [
        1998,
        11,
        9
      ]
    ]
  },
  "references-count": 7,
  "journal-issue": {
    "issue": "19",
    "published-print": {
      "date-parts": [
        [
          1998,
          11,
          9
        ]
      ]
    }
  },
  "URL": "http://dx.doi.org/10.1063/1.122583",
  "relation": {},
  "ISSN": [
    "0003-6951",
    "1077-3118"
  ],
  "subject": [],
  "published-other": {
    "date-parts": [
      [
        1998,
        11,
        9
      ]
    ]
  },
  "published": {
    "date-parts": [
      [
        1998,
        11,
        9
      ]
    ]
  }
}