Transparent conductive Ga-doped ZnO films and their application in dye-sensitized solar cells

Ji Hong Kim, Kyung Ju Lee, Ji Hyung Roh, Sang Woo Song, Jae Ho Park, In Hyung Yer, Byung Moo Moon

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

This paper presents transparent conductive Ga-doped ZnO (GZO) films and their application in dye-sensitized solar cells (DSSCs). The GZO thin films were deposited on glass substrates by using pulsed laser deposition (PLD). In order to find the optimal condition, we carried out the deposition at various oxygen pressures and temperatures. The structural, electrical, and optical properties of the GZO thin films were investigated. The c-axis-oriented polycrystalline GZO films were obtained under all conditions. The GZO films deposited under the optimal conditions showed a low sheet resistance of 6. 87 Ω/sq and a high optical transmittance of ~85%, which are suitable values for DSSCs. The DSSCs were successfully fabricated based on the prepared GZO films with a thin TiO 2 blocking layer. The fabricated DSSCs with the GZO transparent electrodes showed a conversion efficiency of 3. 96%.

Original languageEnglish
Pages (from-to)2025-2028
Number of pages4
JournalJournal of the Korean Physical Society
Volume60
Issue number12
DOIs
Publication statusPublished - 2012 Jun

Bibliographical note

Funding Information:
This work was supported by Korea University Grant and the New & Renewable Energy of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Knowledge Economy (No. 20103030010040-11-1000).

Keywords

  • Dye-sensitized solar cells
  • Ga-doped ZnO
  • Transparent conductive oxide

ASJC Scopus subject areas

  • General Physics and Astronomy

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