Transparent Conductive ITO/Ag/ITO Electrode Deposited at Room Temperature for Organic Solar Cells

Jun Ho Kim, Tae Woon Kang, Sung Nam Kwon, Seok In Na, Young Zo Yoo, Hyeong Seop Im, Tae Yeon Seong

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

We investigated the optical and electrical properties of room-temperature-deposited indium-tin-oxide (ITO)/Ag (19 nm)/ITO multilayer films as a function of ITO layer thickness. The optical and electrical properties of the ITO/Ag/ITO films were compared with those of high-temperature-deposited ITO-only films for use as an anode in organic solar cells (OSCs). The ITO/Ag/ITO multilayer films had sheet resistances in the range 5.40–5.78 Ω/sq, while the ITO-only film showed 14.18 Ω/sq. The carrier concentration of the ITO/Ag/ITO films gradually decreased from 2.01 × 1022 to 7.20 × 1021 cm−3 as the ITO thickness increased from 17 nm to 83 nm. At 530 nm, the transmittance of the ITO/Ag/ITO (50 nm/19 nm/50 nm) films was ~90%, while that of the ITO-only film gave 96.5%. The multilayer film had a smooth surface with a root mean square (RMS) roughness of 0.49 nm. Poly (3-hexylthiophene) (P3HT):[6,6]-phenyl-C61 butyric acid methylester (PCBM) bulk heterojunction (BHJ)-based OSCs fabricated with the ITO/Ag/ITO (50 nm/19 nm/50 nm) film showed a power conversion efficiency (PCE) (2.84%) comparable to that of OSCs with a conventional ITO-only anode (3.48%).

Original languageEnglish
Pages (from-to)306-311
Number of pages6
JournalJournal of Electronic Materials
Volume46
Issue number1
DOIs
Publication statusPublished - 2017 Jan 1

Fingerprint

Tin oxides
indium oxides
Indium
tin oxides
solar cells
Electrodes
electrodes
room temperature
Temperature
Oxide films
Multilayer films
Organic solar cells
indium tin oxide
oxide films
Anodes
Electric properties
anodes
Optical properties
electrical properties
optical properties

Keywords

  • Ag
  • ITO
  • multilayer
  • organic solar cell
  • transparent conducting electrode

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Materials Chemistry
  • Electrical and Electronic Engineering

Cite this

Transparent Conductive ITO/Ag/ITO Electrode Deposited at Room Temperature for Organic Solar Cells. / Kim, Jun Ho; Kang, Tae Woon; Kwon, Sung Nam; Na, Seok In; Yoo, Young Zo; Im, Hyeong Seop; Seong, Tae Yeon.

In: Journal of Electronic Materials, Vol. 46, No. 1, 01.01.2017, p. 306-311.

Research output: Contribution to journalArticle

Kim, Jun Ho ; Kang, Tae Woon ; Kwon, Sung Nam ; Na, Seok In ; Yoo, Young Zo ; Im, Hyeong Seop ; Seong, Tae Yeon. / Transparent Conductive ITO/Ag/ITO Electrode Deposited at Room Temperature for Organic Solar Cells. In: Journal of Electronic Materials. 2017 ; Vol. 46, No. 1. pp. 306-311.
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AB - We investigated the optical and electrical properties of room-temperature-deposited indium-tin-oxide (ITO)/Ag (19 nm)/ITO multilayer films as a function of ITO layer thickness. The optical and electrical properties of the ITO/Ag/ITO films were compared with those of high-temperature-deposited ITO-only films for use as an anode in organic solar cells (OSCs). The ITO/Ag/ITO multilayer films had sheet resistances in the range 5.40–5.78 Ω/sq, while the ITO-only film showed 14.18 Ω/sq. The carrier concentration of the ITO/Ag/ITO films gradually decreased from 2.01 × 1022 to 7.20 × 1021 cm−3 as the ITO thickness increased from 17 nm to 83 nm. At 530 nm, the transmittance of the ITO/Ag/ITO (50 nm/19 nm/50 nm) films was ~90%, while that of the ITO-only film gave 96.5%. The multilayer film had a smooth surface with a root mean square (RMS) roughness of 0.49 nm. Poly (3-hexylthiophene) (P3HT):[6,6]-phenyl-C61 butyric acid methylester (PCBM) bulk heterojunction (BHJ)-based OSCs fabricated with the ITO/Ag/ITO (50 nm/19 nm/50 nm) film showed a power conversion efficiency (PCE) (2.84%) comparable to that of OSCs with a conventional ITO-only anode (3.48%).

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