Solar cell dephosphorized silicon glass

4 FAQs about [Solar cell dephosphorized silicon glass]

Can silicon reduce potential induced degradation of crystalline Si solar cells?

This study proposes a promising silicon (Si) solar cell structure for reducing the potential induced degradation (PID) of crystalline Si solar cells. Phosphorous silicate glass (PSG) layers were carefully designed on an emitter layer, and the thickness of these layers (d PSG) was controlled by adjusting the diffusion temperature and time.

How do phosphorus silicate glass layers affect PV efficiencies?

Phosphorous silicate glass (PSG) layers were carefully designed on an emitter layer to determine how they affect the efficiencies of solar cells before and after PID. A current-voltage (I-V) tester was used to determine PV parameters. An ellipseometer and transmission electron microscope (TEM) were used to measure the thicknesses of the PSG layers.

How is phosphorous silicate glass redeposited?

The phosphorous silicate glass and SiO 2 diffusion barrier after the BSF formation were removed from the front of the substrate using a buffered oxide etchant (BOE). Subsequently, a SiO 2 diffusion barrier of 2 μm was redeposited on the rear side of the substrate by using PECVD.

Which float glass is used as a substrate for solar cells?

As substrate for solar cells on multicrystalline (mc) silicon iron-poor SLG was used “Pilkington Optiwhite” (Pilkington Group Ltd, St. Helens, UK), which is a standard low-cost float glass. It is composed of 72.6% SiO 2, 13% Na 2 O, 8.8% CaO, 4.3% MgO, 0.6% Al 2 O 3, 0.02% SO 3 and 0.02% Fe 2 O 3.

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