Published September 2008 | Version v1
Journal article Metadata-only

Effects of ITO surface modification using self-assembly molecules on the characteristics of OLEDs

Creators

  • 1. Interdisciplinary Program of Integrated Biotechnology, Sogang University, Seoul 121-742 (Korea, Republic of)
  • 2. Department of Chemistry, Yonsei University, Wonju 220-710 (Korea, Republic of)
  • 3. Department of Chemistry/Display Research Center, The Catholic University of Korea, Pucheon 420-734 (Korea, Republic of)
  • 4. Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 121-742 (Korea, Republic of)

Description

Indium tin oxide (ITO) has been commonly used as an anode of organic light emitting diode (OLED), because of relatively high work function, high transmittance, and low resistance. However, interface property between ITO and adjacent organic layer limits hole injection from the anode electrode. We have synthesized 4'-nitrobiphenyl-4-carboxylic acid (NBCA) and fabricated the hole-only device consisting of ITO/NBCA self-assembled monolayer (SAM)/TPD (1500 A)/Al (500 A) and the organic light emitting diode (OLED) consisting of ITO/NBCA SAM/TPD (600 A)/Alq3 (600 A)/Al (600 A). The prepared hole-only device with NBCA exhibited lower driving voltage than the device using 4-nitrobenzoic acid (NBA). OLED using NBCA also showed high external quantum efficiency

Availability note (English)

Available from http://dx.doi.org/10.1016/j.ultramic.2008.04.026

Additional details

Identifiers

DOI
10.1016/j.ultramic.2008.04.026;
PII
S0304-3991(08)00113-7;

Publishing Information

Journal Title
Ultramicroscopy (Amsterdam)
Journal Volume
108
Journal Issue
10
Journal Page Range
p. 1233-1236
ISSN
0304-3991
CODEN
ULTRD6

Conference

Title
9. international conference on scanning probe micrososcopy, sensors and nanostructures
Dates
10-14 Jun 2007
Place
Jeju (Korea, Republic of)

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
40006216
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ANODES; CARBOXYLIC ACIDS; ELECTRIC POTENTIAL; EQUIPMENT; HOLES; INDIUM; LIGHT EMITTING DIODES; MODIFICATIONS; MOLECULES; QUANTUM EFFICIENCY; SURFACES; TIN OXIDES
Descriptors DEC
CHALCOGENIDES; EFFICIENCY; ELECTRODES; ELEMENTS; METALS; ORGANIC ACIDS; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; SEMICONDUCTOR DEVICES; SEMICONDUCTOR DIODES; TIN COMPOUNDS

Optional Information

Copyright
Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.