Journal
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
Volume 16, Issue 10, Pages 10272-10275Publisher
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2016.13142
Keywords
ZTO; Nanoparticle; Photodetector
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Funding
- Basic Science Research Program of the National Research Foundation of Korea (NRF)
- Ministry of Education, Science and Technology [NRF-2015R1A1A1A05027848]
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ZnSnO3 (ZTO) nanoparticles synthesized by a sol-gel method were spin-coated on p-Si substrates for the fabrication of UV photodetectors. After annealing the ZTO nanoparticles at 500 degrees C for 20 min, the ZTO films were crystallized in a pure N-2 atmosphere; film formation was confirmed by X-ray diffraction (XRD) and scanning electron microscopy (SEM). From the photoluminescence measurement results, the crystallized ZTO films show the strongest emission peak at a wavelength of 381 nm (3.25 eV) with a full width at half maximum of 121 meV at room temperature. In order to show the UV-response of our samples, time-dependent photocurrents were observed. The crystallized ZTO films show a transient photocurrent curve and a decay time of 1.29 s, which indicates that crystallized ZTO nanoparticles can be used for UV photodetectors.
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