Electrodeposition of chalcopyrite films from ionic liquid electrolytes

D D Shivagan, P J Dale, A P Samantilleke, L M Peter

Research output: Contribution to journalArticle

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Abstract

An air and water stable room-temperature ionic liquid based on choline chloride/urea eutectic mixture has been investigated as a system for the electrodeposition of CuInSe2 (CIS) and Cu(In,Ga)Se-2 (CIGS) films for photovoltaic applications. Deposition potentials and bath compositions were optimized to obtain Cu-In, Cu-In-Se and Cu-In-Ga-Se precursor films, which were selenized in a tube furnace at 500 degrees C for 30 min to form CIS and CI(G)S films. Photo-electrochemical measurements on these selenized films showed p-type photoconductivity with hand gaps of 1.0 eV and 1.09 eV, respectively, for CIS and CIGS. The films were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), photocurrent spectroscopy and electrolyte electro-reflectance spectroscopy (EER). (C) 2007 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)5899-5903
Number of pages5
JournalThin Solid Films
Volume515
Issue number15
DOIs
Publication statusPublished - 2007

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Ionic Liquids
Ionic liquids
Electrodeposition
electrodeposition
Electrolytes
electrolytes
liquids
Spectroscopy
choline
Commonwealth of Independent States
Photoconductivity
Choline
Photocurrents
ureas
Urea
photoconductivity
eutectics
Eutectics
spectroscopy
furnaces

Cite this

Electrodeposition of chalcopyrite films from ionic liquid electrolytes. / Shivagan, D D; Dale, P J; Samantilleke, A P; Peter, L M.

In: Thin Solid Films, Vol. 515, No. 15, 2007, p. 5899-5903.

Research output: Contribution to journalArticle

Shivagan, D D ; Dale, P J ; Samantilleke, A P ; Peter, L M. / Electrodeposition of chalcopyrite films from ionic liquid electrolytes. In: Thin Solid Films. 2007 ; Vol. 515, No. 15. pp. 5899-5903.
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AB - An air and water stable room-temperature ionic liquid based on choline chloride/urea eutectic mixture has been investigated as a system for the electrodeposition of CuInSe2 (CIS) and Cu(In,Ga)Se-2 (CIGS) films for photovoltaic applications. Deposition potentials and bath compositions were optimized to obtain Cu-In, Cu-In-Se and Cu-In-Ga-Se precursor films, which were selenized in a tube furnace at 500 degrees C for 30 min to form CIS and CI(G)S films. Photo-electrochemical measurements on these selenized films showed p-type photoconductivity with hand gaps of 1.0 eV and 1.09 eV, respectively, for CIS and CIGS. The films were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), photocurrent spectroscopy and electrolyte electro-reflectance spectroscopy (EER). (C) 2007 Elsevier B.V. All rights reserved.

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