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Al‐, Ga‐, and In‐doped ZnO thin films via aerosol assisted CVD for use as transparent conducting oxides
Author(s) -
Potter Dominic B.,
Bhachu Davinder S.,
Powell Michael J.,
Darr Jawwad A.,
Parkin Ivan P.,
Carmalt Claire J.
Publication year - 2016
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201532996
Subject(s) - dopant , materials science , chemical vapor deposition , wurtzite crystal structure , thin film , x ray photoelectron spectroscopy , doping , zinc , chemical engineering , inorganic chemistry , analytical chemistry (journal) , nanotechnology , chemistry , metallurgy , organic chemistry , optoelectronics , engineering
Al‐, Ga‐, and In‐doped ZnO thin films were deposited on glass substrates by aerosol assisted chemical vapour deposition (AACVD) at a deposition temperature of 450 °C. The air‐stable compound zinc acetylacetonate [Zn(acac) 2 ] was used as a Zn source, whilst for the dopants of Al, Ga and In, the corresponding trichloride was used. Methanol solutions of the metal salts were used as precursor solutions and N 2 carrier gas was used for the aerosol. Films were grown in approximately 30 min and were synthesised using dopant values of 5, 10, 15 and 20 mol.% (with respect to the Zn) in the precursor solution. XRD analysis showed that the films were wurtzite ZnO. XPS analysis confirmed the presence of the dopants in the films. Several of the films showed high transparency (>80%) in the visible range, and low resistivity (∼10 −3 Ω cm).