TY - JOUR
T1 - The influence of al dopant precursors on the characteristics of ZnO fine particles prepared by ultrasonic spray pyrolysis
AU - Widiyastuti, W.
AU - Setiawan, Adhi
AU - Winardi, Sugeng
AU - Nurtono, Tantular
AU - Madhania, Suci
AU - Susanti, Diah
PY - 2012
Y1 - 2012
N2 - The effect of aluminum sources of nitrate, chloride, and sulphate salts as dopant chemicals on the characteristics of aluminum-doped zinc oxide particles prepared via ultrasonic spray pyrolysis have been investigated. The structural, optical, morphological and electrical characteristics were examined using an X-ray diffraction (XRD) technique, UVvis spectrophotometer, scanning electron microscopy (SEM) and a four-point probe method, respectively. Using the three aluminum sources as dopants with a molar ratio [Al]/[Zn] as high as 8% did not change the hexagonal wurtzite crystal structure of ZnO. The use of a nitrate source indicated that the crystal size was decreased less than that of chloride and sulphate sources when the dopant concentration was increased. In general, increasing the dopant concentration led to a decrease in the transmittance percentages. Al-doped ZnO particles had a more spherical and smoother surface than those of undoped ZnO particles. The film resistance values of [Al]/[Zn]=2% were 1.89, 2.31 and 4.31×10-2Ω.cm for aluminum sources of sulphate, chloride and nitrate, respectively.
AB - The effect of aluminum sources of nitrate, chloride, and sulphate salts as dopant chemicals on the characteristics of aluminum-doped zinc oxide particles prepared via ultrasonic spray pyrolysis have been investigated. The structural, optical, morphological and electrical characteristics were examined using an X-ray diffraction (XRD) technique, UVvis spectrophotometer, scanning electron microscopy (SEM) and a four-point probe method, respectively. Using the three aluminum sources as dopants with a molar ratio [Al]/[Zn] as high as 8% did not change the hexagonal wurtzite crystal structure of ZnO. The use of a nitrate source indicated that the crystal size was decreased less than that of chloride and sulphate sources when the dopant concentration was increased. In general, increasing the dopant concentration led to a decrease in the transmittance percentages. Al-doped ZnO particles had a more spherical and smoother surface than those of undoped ZnO particles. The film resistance values of [Al]/[Zn]=2% were 1.89, 2.31 and 4.31×10-2Ω.cm for aluminum sources of sulphate, chloride and nitrate, respectively.
KW - Aluminum salts
KW - Crystalline size
KW - Morphology
KW - Resistivity
KW - Transmittance
KW - ZnO:al
UR - http://www.scopus.com/inward/record.url?scp=84891777187&partnerID=8YFLogxK
U2 - 10.1016/j.proeng.2012.10.019
DO - 10.1016/j.proeng.2012.10.019
M3 - Conference article
AN - SCOPUS:84891777187
SN - 1877-7058
VL - 50
SP - 152
EP - 158
JO - Procedia Engineering
JF - Procedia Engineering
T2 - 2012 International Conference on Advances Science and Contemporary Engineering, ICASCE 2012
Y2 - 24 October 2012 through 25 October 2012
ER -