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Cover Feature: Double‐Pulse Electrodeposition of CuGaS 2 Photovoltaic Thin Film (ChemElectroChem 12/2019)
Author(s) -
Andrade Marcos A. S.,
Gromboni Murilo F.,
Soares Leandro L.,
Mascaro Lucia H.
Publication year - 2019
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201900763
Subject(s) - chalcogenide , chalcopyrite , thin film , impurity , materials science , ternary operation , substrate (aquarium) , band gap , sulfide , phase (matter) , sulfur , optoelectronics , metallurgy , analytical chemistry (journal) , mineralogy , copper , nanotechnology , chemistry , computer science , oceanography , organic chemistry , chromatography , geology , programming language
The Cover Feature shows the double‐pulse electrodeposition of a CuGaS 2 photovoltaic thin film on an FTO substrate. The chalcopyrite film is deposited by pulsing a −0.8 V vs. Ag/AgCl potential, depositing an impure wide bandgap ternary chalcogenide, followed by a −0.2 V Ag/AgCl potential to dissolve the CuS impurity phase. The CuGaS 2 film is deposited in one step in an all‐elements‐contained aqueous solution, using Na 2 S 2 O 3 as the sulfur source. Highly pure CuGaS 2 films are deposited without copper sulfide impurities and without the need for KCN post‐treatment. More information can be found in the Communication by M. A. S. Andrade Jr. et al. on page 2998 in Issue 12, 2019 (DOI: 10.1002/celc.201900316).