Abstract
A double layer of gold nano particles (Au-NPs) and amorphous tungsten oxide (a-WO3) was employed as a buffer layer on textured fluorine-tin oxide (FTO) glass in pin-type hydrogenated amorphous silicon solar cells (a-Si:H SCs). Au-NPs of ~10 nm size were spin coated and a-WO3 layer was thermally evaporated between Au-NPs on a FTO glass and hydrogenated amorphous p-type Si layer. a-Si:H SCs with a double buffer layer showed higher efficiency of 7% improvement, 8.059% from a value of 7.530%, and increased current density of 8.3% improvement, 14.212 mA/cm2 from a value of 13.120 mA/cm 2, originating from the enhancement of electrical interface contact and bandgap alignment, as well as the slight absorption and surface plasmon resonance effect due to Au-NPs on textured FTO glass.
Original language | English |
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Pages (from-to) | Q42-Q44 |
Journal | ECS Solid State Letters |
Volume | 1 |
Issue number | 5 |
DOIs | |
State | Published - 2012 |