A greener electrodeposition recipe for ZnO films in terawatt photovoltaics

Bin Zhou, Xiaofei Han, Qing Feng, Meng Tao

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Electrodeposition of ZnO can be performed in an aqueous solution using a greener recipe, where the solution can be reused for multiple deposition runs. The solution in this greener recipe has only one function, i.e. to provide electrical conductivity for the deposition reactions. A Zn sheet serves as the anode, which dissolves during the deposition as the Zn source. O 2 is bubbled into the solution and reduced to OH - ions as the O source. This recipe minimizes concentration changes in the solution as deposition proceeds, making the solution reusable. An initial Zn 2 + concentration of a few mM in the solution is required, not to serve as a Zn source but to facilitate the deposition and prevent precipitation of ZnO in the solution. Multiple deposition runs for ZnO films in the same solution have been demonstrated. X-ray diffraction, optical transmittance and absorption spectra reveal that all the ZnO films have similar structural and optical properties. They all display high transmittance of ~ 80% and low absorbance of ~ 10%.

Original languageEnglish (US)
Pages (from-to)6730-6733
Number of pages4
JournalThin Solid Films
Volume520
Issue number22
DOIs
StatePublished - Sep 1 2012

Fingerprint

Electrodeposition
electrodeposition
transmittance
Opacity
Light absorption
anodes
Structural properties
Absorption spectra
Anodes
Optical properties
aqueous solutions
absorption spectra
optical properties
Ions
electrical resistivity
X ray diffraction
diffraction
ions
x rays

Keywords

  • Electrodeposition
  • Green process
  • Waste chemical
  • ZnO

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Metals and Alloys
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

Cite this

A greener electrodeposition recipe for ZnO films in terawatt photovoltaics. / Zhou, Bin; Han, Xiaofei; Feng, Qing; Tao, Meng.

In: Thin Solid Films, Vol. 520, No. 22, 01.09.2012, p. 6730-6733.

Research output: Contribution to journalArticle

Zhou, Bin ; Han, Xiaofei ; Feng, Qing ; Tao, Meng. / A greener electrodeposition recipe for ZnO films in terawatt photovoltaics. In: Thin Solid Films. 2012 ; Vol. 520, No. 22. pp. 6730-6733.
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