Journal
ACS APPLIED ELECTRONIC MATERIALS
Volume 3, Issue 1, Pages 299-308Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsaelm.0c00856
Keywords
silicates; alkaline earth metals; FT-IR; XRD; UV/vis; density functional theory
Funding
- DFG
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The demand for different materials in the semiconductor field has driven strong research in the past decades, with atomic scale precision achieved for desired material properties through crystal doping. However, potential channel replacement materials for silicon like GaAs face safety and environmental concerns, prompting the search for non-toxic and environmentally friendly alternatives.
The demand for different materials in the field of semiconductors has been driving a strong research during the past decades. Few unique materials have been developed, and with additional modifications like crystal doping, it is now possible to achieve many of the desired material properties with atomic scale precision. An important roadblock for the scientific community lies in the fact that many of the materials being considered as channel replacements for silicon, like GaAs, indeed have well-characterized and likely tunable electronic properties. On the other hand, such compounds are not suitable for mass production because they would represent both an increase in the demand of environmentally critical resources and safety concerns due to their toxic nature. In this work, we report the synthesis of three different silicates using a wet chemical approach, with a strict limitation to nontoxic and environmentally friendly resources. The atomic and electronic structure of the obtained oxides are characterized by X-ray diffraction (XRD), infrared spectroscopy (IR), and diffuse reflection ultraviolet-visible spectroscopy (UV/vis) and subsequently examined by means of first-principles calculations. Finally, we not only discuss possible limitations of the synthesized compounds but also anticipate further expansions of our approach to finally present the most likely fields of application.
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