TY - JOUR
T1 - Enhancement and optimization of ATO nano-crystalline films properties by the addition of acetylacetone as modifier in the sol-gel process
AU - Galaviz-pérez, J. A.
AU - Chen, Fei
AU - Shen, Qiang
AU - Vargas-garcía, J. R.
AU - Zhang, Lianmeng
N1 - Publisher Copyright:
© 2015, Wuhan University of Technology and Springer-Verlag Berlin Heidelberg.
PY - 2015/10/1
Y1 - 2015/10/1
N2 - Sb-doped SnO2 (ATO) thin films have been prepared using the spin coating method by selecting the proper amount of acetylacetone as solution modifier. All ATO powders and films exhibited the cassiterite rutile-like structure in a crystal size below 10 nm under all the experimental conditions and a nonpreviously reported crystal structure was observed at high acetylacetone loads. The acetylacetone molar ratio influenced notably the optical and electrical properties of ATO films. When prepared at an acetylacetone molar ratio of 4, ATO films exhibited optical transparencies above 90% in the visible region and above 40% in the UV region for thicknesses of 100 and 300 nm. Films in a thickness of 100 nm and at an annealing temperature of 650 °C accounted for a high transparency of 97% in the visible wavelength. Films prepared at an acetylacetone molar ratio of 4 exhibited an electric resistivity of 1.33×10-3 Ω·cm at an annealing temperature of 650 °C. The optimal Sb content for ATO films was found to be 8 at%. The relationships among the properties of starting solutions, the experimental parameters, and properties of ATO films are discussed.
AB - Sb-doped SnO2 (ATO) thin films have been prepared using the spin coating method by selecting the proper amount of acetylacetone as solution modifier. All ATO powders and films exhibited the cassiterite rutile-like structure in a crystal size below 10 nm under all the experimental conditions and a nonpreviously reported crystal structure was observed at high acetylacetone loads. The acetylacetone molar ratio influenced notably the optical and electrical properties of ATO films. When prepared at an acetylacetone molar ratio of 4, ATO films exhibited optical transparencies above 90% in the visible region and above 40% in the UV region for thicknesses of 100 and 300 nm. Films in a thickness of 100 nm and at an annealing temperature of 650 °C accounted for a high transparency of 97% in the visible wavelength. Films prepared at an acetylacetone molar ratio of 4 exhibited an electric resistivity of 1.33×10-3 Ω·cm at an annealing temperature of 650 °C. The optimal Sb content for ATO films was found to be 8 at%. The relationships among the properties of starting solutions, the experimental parameters, and properties of ATO films are discussed.
KW - acetylacetone
KW - antimony doping
KW - electric properties
KW - optical transparency
KW - tin oxide films
UR - http://www.scopus.com/inward/record.url?scp=84944205709&partnerID=8YFLogxK
U2 - 10.1007/s11595-015-1243-1
DO - 10.1007/s11595-015-1243-1
M3 - Artículo
SN - 1000-2413
VL - 30
SP - 873
EP - 881
JO - Journal Wuhan University of Technology, Materials Science Edition
JF - Journal Wuhan University of Technology, Materials Science Edition
IS - 5
ER -