More power at low sunlight

The solar cells from the date of invention have found its application in various sunny regions like Sahara, Equator regions, space and also in so many small scale applications. Rather than solar cells the semiconductor materials such as gallium arsenide (GaAs) are more efficient at converting light to electricity therefore it has found its place in common use today. But these semiconductor materials are more suitable for space because in space there is a uniform lighting condition. The atmosphere acts as a filter so the lighting condition varies according to the atmospheric condition. Now the Quantasol, the UK based firm which added the indium gallium arsenide (InGaAs) to pores just a few nanometers across on the surface of their cells, called quantum wells. These pores can absorb the light just like normal cells but only at certain frequencies i.e. the light that is not well absorbed by GaAs. In simple words this process has broken the 21-year-old record of one type of solar cells.