Onlaor, Korakot
Loading...
Preferred name
Onlaor, Korakot
Alternative Name
Onlaor, K.
Main Affiliation
Email
korakot.on@kmitl.ac.th
4 results
Now showing 1 - 4 of 4
- Some of the metrics are blocked by yourconsent settings
Item type:Publication, Electrical Bistable Properties of P-25 TiO2 Nanoparticles Composited with PVP for Memory Devices(2019-10-01); In this work, P-25 titanium dioxide nanoparticles (TiO<inf>2</inf> NPs) were composited with poly-vinylpyrrolidone (PVP) at various concentrations of TiO<inf>2</inf> NPs. The bistable memory devices were fabricated by spin coating from a prepared PVP:TiO<inf>2</inf> NPs solution on indium tin oxide (ITO) electrodes with the device structure of ITO/PVP:TiO<inf>2</inf> NPs/Al. The maximum ON/OFF current ratio of the bistable memory devices was approximately 10<sup>5</sup> at a reading voltage of +1 V. The mechanism of the memory device can be expressed by theoretical fitting between the experimental results and conduction models. Moreover, a retention time test for continuous read operations of the device is presented. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Electrical Properties of Eggshell-Derived CaO Composited with Polyvinylpyrrolidone for Bistable Device(2022-01-01); ; - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Influence of Phase Structure of TiO2 Nanoparticles on Resistive Switching Devices(2024-01-03); ; In this work, the electrical memory properties of a bi-stable device based on the structure of aluminum/poly (9-vinyl carbazole) (PVK): TiO<inf>2</inf> NPs/indium-tin-oxide (ITO) were reported. The effects of the modified phase structural of titanium dioxide nanoparticles (TiO<inf>2</inf> NPs) on the electrical memory characteristics were determined. The TiO<inf>2</inf> NPs were annealed at different annealing temperatures. The physical properties of the annealed TiO<inf>2</inf> NPs were characterized by transmission electron microscope and X-ray diffraction, which revealed the composition and structure of the anatase and rutile phases. Current-voltage measurements showed that the bi-stable characteristics were affected by the phase structure of the TiO<inf>2</inf> NPs. The ON/OFF current ratio of the fabricated device was noted to be approximately 2.06×10<sup>5</sup> in the case of TiO<inf>2</inf> NPs annealed at 500°C. A theoretical model was used to explain the charge injection mechanisms of the device. Moreover, the temperature dependence and retention-time measurements of the device were demonstrated. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Structural, Optical, and Electrical Properties of Sputtered ZnO Thin Films and Their Application in Transparent Memory Devices(2022-12-01); ; We report on the fabrication of ZnO thin films using a lab-made DC sputtering process. The ZnO films were prepared at several applied sputter voltages at fixed deposition times. The properties of the deposited films were characterized by x-ray diffraction, x-ray photoelectron spectroscopy, field-emission scanning electron microscopy, and UV–visible spectroscopy. The ZnO thin films exhibited a polycrystalline phase in the dominant (100) plane, with film thicknesses in the order of approximately 50–80 nm. In addition, a transparent memory device based on the ZnO film was successfully fabricated with a device structure of ITO/ZnO/EVA/ITO. The fabricated device exhibited high optical transparency of approximately 70% in the visible light region. The fabricated memory device demonstrated memory properties with a maximum ON/OFF current ratio of 4.66 × 10<sup>3</sup> and showed good retention properties.