Influence of oxygen on the optical, electrical, and heating properties of gallium-doped zinc oxide (GZO) films
Source abstract
Abstract
Thin-film transparent heaters (TFTHs) are gaining popularity in optoelectronics and a variety of domestic applications, including smart windows, car defrosters, and other devices. The deposition and characterization of TFTHs made of gallium-doped zinc oxide (GZO) are presented in this work. GZO thin films were deposited via pulsed laser deposition on glass substrates with varying oxygen partial pressures from 0 to 10 mTorr during deposition. The samples demonstrated very low sheet resistance values between 5 and 17 Ω/sq from 0 to 10 mTorr, respectively. UV/vis transmission spectra revealed that TFTHs have a high optical transparency above 80%. GZO-based TFTHs demonstrated a consistent and repeatable joule heating effect, with temperatures reaching 76 °C with a low input voltage of 10 V. This research could guide the future use of GZO as a transparent conducting oxide material for many potential cost-effective applications from low-powered electronics to lightweight and wearable devices.
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Research context
OpenAlex topics: ZnO doping and properties · Thin-Film Transistor Technologies · Advanced Sensor and Energy Harvesting Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Center for Materials Research, Norfolk State University 1 , 700 Park Avenue, Norfolk, Virginia 23504, USA
Engineering Department, Norfolk State University 2 , 700 Park Avenue, Norfolk, Virginia 23504, USA
Funding
National Science Foundation
References (64)
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