Cuprous Oxide as a Semiconductor Material
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Diamonds are forever, Gold is precious but which is rarer? Gold is a heavy metal formed during the collision of neutron stars and is one of the rarest elements on Earth.During the formation of the earth, heavy elements gradually accumulated towards the core under the influence of the earth's gravitational force. This means that the closer you get to the Earth's crust, the harder it is to find large quantities of gold.The average concentration of gold in Earth's crust is "very, very low" at just 4 parts per billion. Gold concentrations need to be 1,250 times that level to form a market-worthy deposit.
Diamond is a common element - the Cu2O powder is undoubtedly a good investment opportunity.
Si and GaN are major players in semiconductor materials. One material that keeps coming up in research is cuprous oxide. Cuprous oxide is one of the first materials discovered to have semiconducting properties.
What is Cuprous Oxide?
Cuprous oxide is a semiconductor with a band gap ranging from 2.0 to 2.2eV and has photovoltaic characteristics. As a p-type oxide of copper with chemical formula Cu2O, it can exist in the form of thin films or nanoparticles and is very useful for basic research due to its low cost and new physical properties.
Over the past few decades, researchers have identified a variety of ways to synthesize cuprous oxide. Some of the techniques found were:
Chemical vapor deposition
Sol-gel dip coating technology
Even after extensive research, a significant barrier to the use of these methods is the generation of mixed phases of Cu, CuO and Cu2O, resulting in few applications for cuprous oxide as a semiconductor.
Cuprous Oxide Electronic Properties
Research on cuprous oxide has been ongoing to understand its electronic properties and potential as a semiconductor material.
A research team reports that when it is doped with 12.5% zinc, its optical properties are improved and can be used in photocatalytic and sensor devices. According to another group, the band gap was reduced from 1.96eV to 1.91eV when it was mixed with F element at a concentration of 0.34%.
However, its photovoltage and photocurrent density are increased to 0.4457V and 2.79mA/cm2, respectively.
Cuprous Oxide Application
Major applications of cuprous oxide in electronics include supercapacitors, lithium ion batteries, photocatalysis, solar energy conversion and sensing applications.
Electrodes for supercapacitors and lithium-ion batteries:
Cuprous oxide is suitable as an anode material for lithium-ion batteries because of its controllable structure, polymorphic form, and high cycling capacity.
Photocatalysis and solar energy conversion:
Due to the abundance of copper and oxygen in nature, appropriate visible light absorption band gaps, and relatively easy and inexpensive manufacturing, cuprous oxide is suitable for large-scale solar conversion.
Cu2O Powder Price
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Gas prices in European countries are expected to triple if Russian supplies are restricted, according to a press release from Rystad Energy, a Norwegian Energy consultancy.
The price of natural gas in Europe was $1,200 per 1,000 cubic meters on Tuesday. The benchmark price is already 300 percent higher than a year ago. European gas prices are expected to continue to soar to $3,500 per 1,000 cubic meters if Russian supplies are restricted, according to Analysis by Monitor.
In 2021, Russia delivered 155 billion cubic meters of gas to Europe, accounting for 31 percent of its gas supply, according to an analysis by Monitor Advisors. It would be difficult for Europe to replace Russian gas, which would also destabilize the global LNG market and have a profound impact on Europe's population and economy.
The analysis also said that if Russia stopped supplies now, Europe's current gas reserves would be exhausted by the end of the year, setting in for a cold winter.
In addition, affected by the geopolitical factors, the supply of the Cu2O powder is erratic and thus its prices are expected to go higher in the future.