University of Minnesota, Minneapolis, MN, US
Researchers at the University of Minnesota have developed a novel growth approach for the synthesis of doped barium tin stannate (BSO) for use as a transparent conductive oxide (TCO). The material produced has high room-temperature conductivity and mobility when the dopant is lanthanum. The value of conductivity achieved is comparable to that of the best reported value for indium-tin-oxide (ITO), the industry standard for transparent conducting oxide. While other approaches have demonstrated the promise of Lanthanum-doped BSO as a replacement for ITO, these approaches lack reproducibility and the material produced has lower conductivity and transparency. The novel synthesis approach involves using a chemical precursor for tin as a substitute for a solid tin source in a hybrid molecular beam epitaxy system. The advantages include better structural quality of the films, scalable growth rates and high reproducibility. A variety of dopants can be used including lanthanum, neodymium, and gadolinium.
Primary Application Area: Electronics, Sensors, Communications
Technology Development Status: Concept
Technology Readiness Level: TRL 2
Organization Type: Academic/Gov Lab
Showcase Booth #: 624
GOVT/EXTERNAL FUNDING SOURCES