TY - GEN
T1 - Post-annealing effect on optical absorbance of hydrothermally grown zinc oxide nanorods
AU - Mohar, Rahmat Setiawan
AU - Iwan, S.
AU - Djuhana, Dede
AU - Imawan, Cuk
AU - Saputro, Adhi Harmoko
AU - Fauzia, Vivi
N1 - Publisher Copyright:
© 2016 Author(s).
PY - 2016/4/19
Y1 - 2016/4/19
N2 - In this study, the optical absorbance of zinc oxide (ZnO) nanorods was investigated. The ZnO thin film were deposited on indium tin oxide (ITO) layers using ultrasonic spray pyrolysis (USP) method and then grown by hydrothermal method. In order to improve the optical absorbance, the ZnO nanorods were then post-annealed for one hour at three different of temperatures, namely 250, 400, and 500 °C. The X-ray diffraction (XRD) spectra and FESEM images show that the ZnO nanorods have the hexagonal wurtzite crystal structure and the increasing of post-annealing temperature resulted in the increasing of crystallite size from 38.2 nm to 48.4 nm. The UV-vis spectra shows that all samples of ZnO nanorods exhibited the identical sharp absorption edge at 390 nm indicating that all samples have the same bandgap. The post-annealing process seemed to decrease the optical absorbance in the region of 300-550 nm and increase the optical absorbance in the region of 550-700 nm.
AB - In this study, the optical absorbance of zinc oxide (ZnO) nanorods was investigated. The ZnO thin film were deposited on indium tin oxide (ITO) layers using ultrasonic spray pyrolysis (USP) method and then grown by hydrothermal method. In order to improve the optical absorbance, the ZnO nanorods were then post-annealed for one hour at three different of temperatures, namely 250, 400, and 500 °C. The X-ray diffraction (XRD) spectra and FESEM images show that the ZnO nanorods have the hexagonal wurtzite crystal structure and the increasing of post-annealing temperature resulted in the increasing of crystallite size from 38.2 nm to 48.4 nm. The UV-vis spectra shows that all samples of ZnO nanorods exhibited the identical sharp absorption edge at 390 nm indicating that all samples have the same bandgap. The post-annealing process seemed to decrease the optical absorbance in the region of 300-550 nm and increase the optical absorbance in the region of 550-700 nm.
UR - http://www.scopus.com/inward/record.url?scp=84984549580&partnerID=8YFLogxK
U2 - 10.1063/1.4946927
DO - 10.1063/1.4946927
M3 - Conference contribution
AN - SCOPUS:84984549580
T3 - AIP Conference Proceedings
BT - International Symposium on Current Progress in Mathematics and Sciences 2015, ISCPMS 2015
A2 - Mart, Terry
A2 - Triyono, Djoko
PB - American Institute of Physics Inc.
T2 - 1st International Symposium on Current Progress in Mathematics and Sciences, ISCPMS 2015
Y2 - 3 November 2015 through 4 November 2015
ER -