Effect of deposition temperature on the properties of Al-doped ZnO films prepared by pulsed DC magnetron sputtering for transparent electrodes in thin-film solar cells

Doo Soo Kim, Ji Hyeon Park, Beom Ki Shin, Kyeong Ju Moon, Myoungwoo Son, Moon Ho Ham, Woong Lee, Jae Min Myoung

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A simple but scalable approach to the production of surface-textured Al-doped ZnO(AZO) films for low-cost transparent electrode applications in thin-film solar cells is introduced in this study by combining pulsed dc magnetron sputtering (PDMS) with wet etching in sequence. First, structural, electrical, and optical properties of the AZO films prepared by a PDMS were investigated as functions of deposition temperature to obtain transparent electrode films that can be used as indium-free alternative to ITO electrodes. Increase in the deposition temperature to 230 °C accompanied the improvement in crystalline quality and doping efficiency, which enabled the lowest electrical resistivity of 4.16 × 10 -4 Ω cm with the carrier concentration of 1.65 × 10 21 cm -3 and Hall mobility of 11.3 cm 2 /V s. The wet etching of the films in a diluted HCl solution resulted in surface roughening via the formation of crater-like structures without significant degradation in the electrical properties, which is responsible for the enhanced light scattering capability required for anti-reflective electrodes in thin film solar cells.

Original languageEnglish
Pages (from-to)596-599
Number of pages4
JournalApplied Surface Science
Volume259
DOIs
Publication statusPublished - 2012 Oct 15

Fingerprint

Magnetron sputtering
magnetron sputtering
solar cells
direct current
Electrodes
electrodes
Wet etching
thin films
Electric properties
electrical properties
etching
Hall mobility
Temperature
Indium
temperature
ITO (semiconductors)
craters
Light scattering
Carrier concentration
indium

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

Cite this

Kim, Doo Soo ; Park, Ji Hyeon ; Shin, Beom Ki ; Moon, Kyeong Ju ; Son, Myoungwoo ; Ham, Moon Ho ; Lee, Woong ; Myoung, Jae Min. / Effect of deposition temperature on the properties of Al-doped ZnO films prepared by pulsed DC magnetron sputtering for transparent electrodes in thin-film solar cells. In: Applied Surface Science. 2012 ; Vol. 259. pp. 596-599.
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Effect of deposition temperature on the properties of Al-doped ZnO films prepared by pulsed DC magnetron sputtering for transparent electrodes in thin-film solar cells. / Kim, Doo Soo; Park, Ji Hyeon; Shin, Beom Ki; Moon, Kyeong Ju; Son, Myoungwoo; Ham, Moon Ho; Lee, Woong; Myoung, Jae Min.

In: Applied Surface Science, Vol. 259, 15.10.2012, p. 596-599.

Research output: Contribution to journalArticle

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AU - Kim, Doo Soo

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AU - Ham, Moon Ho

AU - Lee, Woong

AU - Myoung, Jae Min

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