News Article
Transition metals 'boost PV conversion'
Solar panels could benefit from the introduction of transition metals to help increase the bandgap to allow the cells to convert more wavelengths of energy.
Research carried out in Japan has revealed that the addition of transition metals to photovoltaic (PV) cells which utilise gallium nitride (GaN) compound semiconductors can help to boost conversion rates.
The study by Saki Sonoda, associate professor at the Kyoto Institute of Technology, revealed the introduction of manganese, scandium, titanium, vanadium and a host of other metals allowed the cell to convert not just visible light wavelengths, but also those in the infra red and ultravoilet ranges.
In particular, the team has developed a p-type GaN PV cell using cobalt, which is capable of providing two volts of electricity in a one-sun environment.
Transition metals are noteworthy elements as they are capable of moving electrons between the energy shells of each atom. Properties of the group include malleability and being ductile, as well as offering excellent heat and electrical conductivity.
In addition, the only three elements which create a magnetic field - iron, cobalt and nickel - are all transition metals.
The study by Saki Sonoda, associate professor at the Kyoto Institute of Technology, revealed the introduction of manganese, scandium, titanium, vanadium and a host of other metals allowed the cell to convert not just visible light wavelengths, but also those in the infra red and ultravoilet ranges.
In particular, the team has developed a p-type GaN PV cell using cobalt, which is capable of providing two volts of electricity in a one-sun environment.
Transition metals are noteworthy elements as they are capable of moving electrons between the energy shells of each atom. Properties of the group include malleability and being ductile, as well as offering excellent heat and electrical conductivity.
In addition, the only three elements which create a magnetic field - iron, cobalt and nickel - are all transition metals.
