DOI: 10.1889/1.1832444. 27.1: <i>Invited Paper</i>: High Efficiency Organic EL Devices having Charge Generation Layers

27.1: Invited Paper: High Efficiency Organic EL Devices having Charge Generation Layers

10.1889/1.1832444

Crossref journal-article

Wiley

SID Symposium Digest of Technical Papers (311)

Abstract

AbstractWe have developed organic EL (OEL) devices, in which extremely high quantum efficiency of over 100% can be obtained. In order to generate more than one photons per injected electron, “Charge Generation Layers (CGLs)” are placed between emissive units. At CGLs, electrons and holes are generated upon voltage application, and injected to the adjacent organic emissive layers. By using one CGL and two emissive units, quantum efficiency can be doubled compared to the conventional OEL device, and using two CGLs and three emissive units, quantum efficiency can be tripled. One of the OEL device using two CGLs and three emissive units, an extremely high efficiency of 48 cd/A (ca. 14% external) was obtained, which exceeds the so‐called theoretical upper limit of 5%. Examples of such “multiphoton emission” (MPE) devices will be introduced.

Bibliography

Kido, J., Matsumoto, T., Nakada, T., Endo, J., Mori, K., Kawamura, N., & Yokoi, A. (2003). 27.1: Invited Paper: High Efficiency Organic EL Devices having Charge Generation Layers. SID Symposium Digest of Technical Papers, 34(1), 964â965. Portico.

Authors 7

Junji Kido (first)
Toshio Matsumoto (additional)
Takeshi Nakada (additional)
Jun Endo (additional)
Kohichi Mori (additional)
Norifumi Kawamura (additional)
Akira Yokoi (additional)

References 5 Referenced 71

10.1063/1.98799
J.Kido J.Endo T.Nakada K.Mori A.Yokoi andT.Matsumoto“Japan Society of Applied Physics 49th Spring Meet.2002 Ext. Abstr(p.1308) 27p‐YL‐3”.
10.1063/1.122612
{'issue': '4', 'key': 'e_1_2_1_5_1', 'first-page': '22', 'volume': '78', 'author': 'Zhou X.', 'year': '2001', 'journal-title': '“Appl. Phys. Lett.'} / “Appl. Phys. Lett. by Zhou X. (2001)
10.1143/JJAP.41.L358

Dates

Type	When
Created	20 years, 7 months ago (Jan. 5, 2005, 11:09 a.m.)
Deposited	1 year, 9 months ago (Nov. 17, 2023, 10:10 p.m.)
Indexed	3 months, 1 week ago (May 19, 2025, 12:06 p.m.)
Issued	22 years, 3 months ago (May 1, 2003)
Published	22 years, 3 months ago (May 1, 2003)
Published Online	13 years, 1 month ago (July 5, 2012)
Published Print	22 years, 3 months ago (May 1, 2003)

Funders 0

None

BibTeX

@article{Kido_2003, title={27.1: Invited Paper: High Efficiency Organic EL Devices having Charge Generation Layers}, volume={34}, ISSN={2168-0159}, url={http://dx.doi.org/10.1889/1.1832444}, DOI={10.1889/1.1832444}, number={1}, journal={SID Symposium Digest of Technical Papers}, publisher={Wiley}, author={Kido, Junji and Matsumoto, Toshio and Nakada, Takeshi and Endo, Jun and Mori, Kohichi and Kawamura, Norifumi and Yokoi, Akira}, year={2003}, month=may, pages={964–965} }

JSON

{
  "indexed": {
    "date-parts": [
      [
        2025,
        5,
        19
      ]
    ],
    "date-time": "2025-05-19T16:06:03Z",
    "timestamp": 1747670763629
  },
  "reference-count": 5,
  "publisher": "Wiley",
  "issue": "1",
  "license": [
    {
      "start": {
        "date-parts": [
          [
            2012,
            7,
            5
          ]
        ],
        "date-time": "2012-07-05T00:00:00Z",
        "timestamp": 1341446400000
      },
      "content-version": "vor",
      "delay-in-days": 3353,
      "URL": "http://onlinelibrary.wiley.com/termsAndConditions#vor"
    }
  ],
  "content-domain": {
    "domain": [
      "sid.onlinelibrary.wiley.com"
    ],
    "crossmark-restriction": true
  },
  "published-print": {
    "date-parts": [
      [
        2003,
        5
      ]
    ]
  },
  "abstract": "<jats:title>Abstract</jats:title><jats:p>We have developed organic EL (OEL) devices, in which extremely high quantum efficiency of over 100% can be obtained. In order to generate more than one photons per injected electron, \u201cCharge Generation Layers (CGLs)\u201d are placed between emissive units. At CGLs, electrons and holes are generated upon voltage application, and injected to the adjacent organic emissive layers. By using one CGL and two emissive units, quantum efficiency can be doubled compared to the conventional OEL device, and using two CGLs and three emissive units, quantum efficiency can be tripled. One of the OEL device using two CGLs and three emissive units, an extremely high efficiency of 48 cd/A (ca. 14% external) was obtained, which exceeds the so\u2010called theoretical upper limit of 5%. Examples of such \u201cmultiphoton emission\u201d (MPE) devices will be introduced.</jats:p>",
  "DOI": "10.1889/1.1832444",
  "type": "journal-article",
  "created": {
    "date-parts": [
      [
        2005,
        1,
        5
      ]
    ],
    "date-time": "2005-01-05T16:09:05Z",
    "timestamp": 1104941345000
  },
  "page": "964-965",
  "update-policy": "http://dx.doi.org/10.1002/crossmark_policy",
  "source": "Crossref",
  "is-referenced-by-count": 71,
  "title": "27.1: <i>Invited Paper</i>: High Efficiency Organic EL Devices having Charge Generation Layers",
  "prefix": "10.1002",
  "volume": "34",
  "author": [
    {
      "given": "Junji",
      "family": "Kido",
      "sequence": "first",
      "affiliation": []
    },
    {
      "given": "Toshio",
      "family": "Matsumoto",
      "sequence": "additional",
      "affiliation": []
    },
    {
      "given": "Takeshi",
      "family": "Nakada",
      "sequence": "additional",
      "affiliation": []
    },
    {
      "given": "Jun",
      "family": "Endo",
      "sequence": "additional",
      "affiliation": []
    },
    {
      "given": "Kohichi",
      "family": "Mori",
      "sequence": "additional",
      "affiliation": []
    },
    {
      "given": "Norifumi",
      "family": "Kawamura",
      "sequence": "additional",
      "affiliation": []
    },
    {
      "given": "Akira",
      "family": "Yokoi",
      "sequence": "additional",
      "affiliation": []
    }
  ],
  "member": "311",
  "published-online": {
    "date-parts": [
      [
        2012,
        7,
        5
      ]
    ]
  },
  "reference": [
    {
      "key": "e_1_2_1_2_1",
      "doi-asserted-by": "publisher",
      "DOI": "10.1063/1.98799"
    },
    {
      "key": "e_1_2_1_3_1",
      "unstructured": "J.Kido J.Endo T.Nakada K.Mori A.Yokoi andT.Matsumoto\u201cJapan Society of Applied Physics 49th Spring Meet.2002 Ext. Abstr(p.1308) 27p\u2010YL\u20103\u201d."
    },
    {
      "key": "e_1_2_1_4_1",
      "doi-asserted-by": "publisher",
      "DOI": "10.1063/1.122612"
    },
    {
      "issue": "4",
      "key": "e_1_2_1_5_1",
      "first-page": "22",
      "volume": "78",
      "author": "Zhou X.",
      "year": "2001",
      "journal-title": "\u201cAppl. Phys. Lett."
    },
    {
      "key": "e_1_2_1_6_1",
      "doi-asserted-by": "publisher",
      "DOI": "10.1143/JJAP.41.L358"
    }
  ],
  "container-title": "SID Symposium Digest of Technical Papers",
  "original-title": [],
  "language": "en",
  "link": [
    {
      "URL": "https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1889%2F1.1832444",
      "content-type": "unspecified",
      "content-version": "vor",
      "intended-application": "text-mining"
    },
    {
      "URL": "https://onlinelibrary.wiley.com/doi/full/10.1889/1.1832444",
      "content-type": "unspecified",
      "content-version": "vor",
      "intended-application": "similarity-checking"
    }
  ],
  "deposited": {
    "date-parts": [
      [
        2023,
        11,
        18
      ]
    ],
    "date-time": "2023-11-18T03:10:32Z",
    "timestamp": 1700277032000
  },
  "score": 1,
  "resource": {
    "primary": {
      "URL": "https://sid.onlinelibrary.wiley.com/doi/10.1889/1.1832444"
    }
  },
  "subtitle": [],
  "short-title": [],
  "issued": {
    "date-parts": [
      [
        2003,
        5
      ]
    ]
  },
  "references-count": 5,
  "journal-issue": {
    "issue": "1",
    "published-print": {
      "date-parts": [
        [
          2003,
          5
        ]
      ]
    }
  },
  "alternative-id": [
    "10.1889/1.1832444"
  ],
  "URL": "http://dx.doi.org/10.1889/1.1832444",
  "relation": {},
  "ISSN": [
    "0097-966X",
    "2168-0159"
  ],
  "subject": [],
  "container-title-short": "Symp Digest of Tech Papers",
  "published": {
    "date-parts": [
      [
        2003,
        5
      ]
    ]
  },
  "assertion": [
    {
      "value": "2012-07-05",
      "order": 2,
      "name": "published",
      "label": "Published",
      "group": {
        "name": "publication_history",
        "label": "Publication History"
      }
    }
  ]
}