TY - GEN
T1 - The influence of calcination temperature on optical properties of ZnO nanoparticles
AU - Sugihartono, Iwan
AU - Retnoningtyas, Atika
AU - Rustana, Cecep
AU - Umiatin,
AU - Yudasari, Nurfina
AU - Isnaeni,
AU - Imawan, Cuk
AU - Kurniadewi, Fera
N1 - Publisher Copyright:
© 2019 Author(s).
PY - 2019/11/7
Y1 - 2019/11/7
N2 - ZnO nanoparticles (NPs) have synthesized by sol-gel with different calcination temperatures. Scanning electron microscopy (SEM) shows that the morphology of ZnO NPs has large aggregation. Then, X-ray diffraction (XRD) technique confirmed that the XRD pattern of ZnO NPs has polycrystalline wurtzite structure. The crystallite size in (002) plane at a calcination temperature of 200 °C, 400 °C, 600 °C are 9.28nm, 12.60nm, 20.11nm, respectively. The intensity of observed peaks increases when the calcination temperature is higher. The room temperature UV-Vis absorbance of ZnO NPs indicate that the higher calcination temperature cause absorption peak shifted to longer wavelength and the bandgap energy lower. Optical photoluminescence properties confirmed that the UV emission coincides with the green emissions which correspond to the electron transition from the bottom conduction band to Vo, Vzn, and Ozn level. As a result, all the samples of the ZnO NPs have single broad emission in the range of 330nm-550nm with the peak at the UV wavelength of 375nm. Nevertheless, the PL pattern is not linearly with increasing calcination temperature.
AB - ZnO nanoparticles (NPs) have synthesized by sol-gel with different calcination temperatures. Scanning electron microscopy (SEM) shows that the morphology of ZnO NPs has large aggregation. Then, X-ray diffraction (XRD) technique confirmed that the XRD pattern of ZnO NPs has polycrystalline wurtzite structure. The crystallite size in (002) plane at a calcination temperature of 200 °C, 400 °C, 600 °C are 9.28nm, 12.60nm, 20.11nm, respectively. The intensity of observed peaks increases when the calcination temperature is higher. The room temperature UV-Vis absorbance of ZnO NPs indicate that the higher calcination temperature cause absorption peak shifted to longer wavelength and the bandgap energy lower. Optical photoluminescence properties confirmed that the UV emission coincides with the green emissions which correspond to the electron transition from the bottom conduction band to Vo, Vzn, and Ozn level. As a result, all the samples of the ZnO NPs have single broad emission in the range of 330nm-550nm with the peak at the UV wavelength of 375nm. Nevertheless, the PL pattern is not linearly with increasing calcination temperature.
UR - http://www.scopus.com/inward/record.url?scp=85075817431&partnerID=8YFLogxK
U2 - 10.1063/1.5132688
DO - 10.1063/1.5132688
M3 - Conference contribution
AN - SCOPUS:85075817431
T3 - AIP Conference Proceedings
BT - 8th National Physics Seminar 2019
A2 - Bakri, Fauzi
A2 - Wibowo, Firmanul Catur
A2 - Sugihartono, Iwan
A2 - Budi, Esmar
A2 - Indrasari, Widyaningrum
A2 - Umiatin, null
A2 - Prayitno, Teguh Budi
PB - American Institute of Physics Inc.
T2 - 8th National Physics Seminar 2019
Y2 - 29 June 2019 through 30 June 2019
ER -