A p-type semiconductor is a material rich in positive charge carriers or holes, whereas negative charges make up the opposing n-type semiconductor. Blue LEDs Fail Because of Magnesium Trap 2015-01-28T05:00:00Z
Here an n-type semiconductor, such as cadmium sulphide, forms a depletion region when in contact with the p-type absorber. Materials interface engineering for solution-processed photovoltaics 2012-08-15T17:22:03.163Z