MIT researchers have found a way of using a virus to improve solar cell efficiency by a third.

Keeping temperature down lowers the resistance and improves the cell efficiency.

Multijunction cell efficiency has now reached 44% in production cells.

However, Heliovolt has claimed a top cell efficiency of 12.2%.

It also holds the world record for multi-layer solar cell efficiency (43%).

The overall effect of temperature on cell efficiency can be computed using these factors in combination with the characteristic equation.

A primary concern in the photovoltaics industry is cell efficiency.

At the University of Saskatchewan researchers are using nano-structures to improve solar cell efficiency.

Some companies use an additional electro-plating step to increase the cell efficiency.

It has the potential to provide nearly-as-good solar cell efficiency at 1/5 the capital expenditure, half the energy requirements, and less than $15/kg.