P-type Sb-doped Cu2O Hole Injection Layer Integrated on Transparent ITO Electrode for Acidic PEDOT:PSS-Free Quantum Dot Light Emitting Diodes

Hyeong Jin Seo, Ji Eun Lee, Su Been Heo, Minju Kim, Yeonjin Yi, Seong Jun Kang, Han Ki Kim

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

It is developed that transparent p-type Sb-doped cuprous oxide (ACO) integrated Sn-doped In2O3 (ITO) film as hole injection layer (HIL) and anode combined electrodes for quantum dot light emitting diodes (QD-LEDs) to substitute acidic PEDOT:PSS HIL based electrode. By graded co-sputtering of ACO and ITO targets, the graded p-type ACO buffer layer can be integrated on the surface region of the ITO electrodes. P-type conductivity of the ACO film for acting as effective HIL in QD-LEDs is confirmed by a positive Hall coefficient (1.74 × 10−3 ohm cm3/C) and a positive Seebeck constant (115 µV K−1). Due to the well-matched work function of p-type ACO on the ITO electrodes, the acidic PEDOT:PSS-free QD-LEDs exhibited typical current-voltage-luminescence of QD-LEDs. The successful operation of PEDOT:PSS-free QD-LED with p-type ACO integrated ITO electrode indicates that ACO and ITO anode graded sputtering is simpler fabrication steps for cost-effective QD-LEDs and elimination of interfacial reactions caused by the acidic PEDOT:PSS layer for reliable QD-LEDs.

Original languageEnglish
Article number1900004
JournalPhysica Status Solidi (A) Applications and Materials Science
Volume216
Issue number11
DOIs
Publication statusPublished - 2019 Jun 5

Fingerprint

ITO (semiconductors)
Semiconductor quantum dots
Light emitting diodes
light emitting diodes
quantum dots
injection
Electrodes
electrodes
Sputtering
Anodes
anodes
sputtering
Buffer layers
poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate)
Surface chemistry
Hall effect
Luminescence
elimination
buffers
substitutes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering
  • Materials Chemistry

Cite this

@article{a147c7ad046148c9ad2b9c9300cc94b9,
title = "P-type Sb-doped Cu2O Hole Injection Layer Integrated on Transparent ITO Electrode for Acidic PEDOT:PSS-Free Quantum Dot Light Emitting Diodes",
abstract = "It is developed that transparent p-type Sb-doped cuprous oxide (ACO) integrated Sn-doped In2O3 (ITO) film as hole injection layer (HIL) and anode combined electrodes for quantum dot light emitting diodes (QD-LEDs) to substitute acidic PEDOT:PSS HIL based electrode. By graded co-sputtering of ACO and ITO targets, the graded p-type ACO buffer layer can be integrated on the surface region of the ITO electrodes. P-type conductivity of the ACO film for acting as effective HIL in QD-LEDs is confirmed by a positive Hall coefficient (1.74 × 10−3 ohm cm3/C) and a positive Seebeck constant (115 µV K−1). Due to the well-matched work function of p-type ACO on the ITO electrodes, the acidic PEDOT:PSS-free QD-LEDs exhibited typical current-voltage-luminescence of QD-LEDs. The successful operation of PEDOT:PSS-free QD-LED with p-type ACO integrated ITO electrode indicates that ACO and ITO anode graded sputtering is simpler fabrication steps for cost-effective QD-LEDs and elimination of interfacial reactions caused by the acidic PEDOT:PSS layer for reliable QD-LEDs.",
author = "Seo, {Hyeong Jin} and Lee, {Ji Eun} and Heo, {Su Been} and Minju Kim and Yeonjin Yi and Kang, {Seong Jun} and Kim, {Han Ki}",
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P-type Sb-doped Cu2O Hole Injection Layer Integrated on Transparent ITO Electrode for Acidic PEDOT:PSS-Free Quantum Dot Light Emitting Diodes. / Seo, Hyeong Jin; Lee, Ji Eun; Heo, Su Been; Kim, Minju; Yi, Yeonjin; Kang, Seong Jun; Kim, Han Ki.

In: Physica Status Solidi (A) Applications and Materials Science, Vol. 216, No. 11, 1900004, 05.06.2019.

Research output: Contribution to journalArticle

TY - JOUR

T1 - P-type Sb-doped Cu2O Hole Injection Layer Integrated on Transparent ITO Electrode for Acidic PEDOT:PSS-Free Quantum Dot Light Emitting Diodes

AU - Seo, Hyeong Jin

AU - Lee, Ji Eun

AU - Heo, Su Been

AU - Kim, Minju

AU - Yi, Yeonjin

AU - Kang, Seong Jun

AU - Kim, Han Ki

PY - 2019/6/5

Y1 - 2019/6/5

N2 - It is developed that transparent p-type Sb-doped cuprous oxide (ACO) integrated Sn-doped In2O3 (ITO) film as hole injection layer (HIL) and anode combined electrodes for quantum dot light emitting diodes (QD-LEDs) to substitute acidic PEDOT:PSS HIL based electrode. By graded co-sputtering of ACO and ITO targets, the graded p-type ACO buffer layer can be integrated on the surface region of the ITO electrodes. P-type conductivity of the ACO film for acting as effective HIL in QD-LEDs is confirmed by a positive Hall coefficient (1.74 × 10−3 ohm cm3/C) and a positive Seebeck constant (115 µV K−1). Due to the well-matched work function of p-type ACO on the ITO electrodes, the acidic PEDOT:PSS-free QD-LEDs exhibited typical current-voltage-luminescence of QD-LEDs. The successful operation of PEDOT:PSS-free QD-LED with p-type ACO integrated ITO electrode indicates that ACO and ITO anode graded sputtering is simpler fabrication steps for cost-effective QD-LEDs and elimination of interfacial reactions caused by the acidic PEDOT:PSS layer for reliable QD-LEDs.

AB - It is developed that transparent p-type Sb-doped cuprous oxide (ACO) integrated Sn-doped In2O3 (ITO) film as hole injection layer (HIL) and anode combined electrodes for quantum dot light emitting diodes (QD-LEDs) to substitute acidic PEDOT:PSS HIL based electrode. By graded co-sputtering of ACO and ITO targets, the graded p-type ACO buffer layer can be integrated on the surface region of the ITO electrodes. P-type conductivity of the ACO film for acting as effective HIL in QD-LEDs is confirmed by a positive Hall coefficient (1.74 × 10−3 ohm cm3/C) and a positive Seebeck constant (115 µV K−1). Due to the well-matched work function of p-type ACO on the ITO electrodes, the acidic PEDOT:PSS-free QD-LEDs exhibited typical current-voltage-luminescence of QD-LEDs. The successful operation of PEDOT:PSS-free QD-LED with p-type ACO integrated ITO electrode indicates that ACO and ITO anode graded sputtering is simpler fabrication steps for cost-effective QD-LEDs and elimination of interfacial reactions caused by the acidic PEDOT:PSS layer for reliable QD-LEDs.

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