Minnesota iron ore could be key to sustainable and lower cost semiconductor
For the first time, researchers at the University of Minnesota Twin Cities have demonstrated that the low-purity iron ore prevalent in Minnesota can be used to create semiconductor-quality iron sulfide, also known as "fool's gold" or pyrite. This discovery could have cost-effective and sustainable applications in future electronic devices and other technologies.
Researchers at the University of Minnesota Twin Cities have discovered that low-purity iron ore found in Minnesota can be used to create high-quality semiconductor-quality iron sulfide, also known as pyrite or fool's gold. This breakthrough could lead to cost-effective and sustainable applications in various electronic devices and technologies.
Minnesota is a major iron-producing state, generating over $4 billion in annual revenue from the iron ore mined in the Mesabi Iron Range. The unique semiconductor property of pyrite lies in its ability to absorb light exceptionally well, making it a desirable material for numerous applications. However, traditional semiconductor processes often require high-purity materials, which can be expensive and environmentally unfriendly.
The researchers found that direct reduced grade taconite, a low-purity iron ore commonly found in Minnesota, can be used to synthesize semiconductor-quality pyrite without the need for additional purification steps. This discovery could potentially open up a new revenue stream for the global industry, while also providing a more sustainable solution for various electronic and environmental applications.
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