Silicon Heterojunction Solar Cells with p-Type Silicon Carbon Window Layer

Silicon Heterojunction Solar Cells on N- and P-type Wafers

A systematic comparison of frontand rear-emitter silicon heterojunction solar cells produced on nand p-type wafers was performed, in order to investigate their potential and limitations for high efficiencies. Cells on p-type wafers suffer from reduced minority carrier lifetime in the low-carrier-injection range, mainly due to the asymmetry in interface defect capture cross sections. This leads ...

Silicon Solar Cells with Nanoporous Silicon Layer

Heterojunction silicon microwire solar cells.

We report radial heterojunction solar cells of amorphous silicon on crystalline silicon microwires with high surface passivation. While the shortened collection path is exploited to increase the photocurrent, proper choice of the wire radius and the highly passivated surface prevent drastic decrease in the voltage due to high surface-to-volume ratio. The heterojunction is formed by depositing a...

Polymeric amorphous carbon as p-type window within amorphous silicon solar cells

Amorphous carbon (a-C) has been shown to be intrinsically p-type, and polymeric a-C ~PAC! possesses a wide Tauc band gap of 2.6 eV. We have replaced the p-type amorphous silicon carbide layer of a standard amorphous silicon solar cell with an intrinsic ultrathin layer of PAC. The thickness of the p layer had to be reduced from 9 to 2.5 nm in order to ensure sufficient conduction through the PAC...

Amorphous silicon oxide window layers for high-efficiency silicon heterojunction solar cells

Articles you may be interested in Optimized amorphous silicon oxide buffer layers for silicon heterojunction solar cells with microcrystalline silicon oxide contact layers Enhancing the efficiency of SnS solar cells via band-offset engineering with a zinc oxysulfide buffer layer Appl. Analysis of sub-stoichiometric hydrogenated silicon oxide films for surface passivation of crystalline silicon ...