15 Aug '17, 11am

How Efficient Will Solar PV Be In The Future? 10-Year Predictions For The Industry

How Efficient Will Solar PV Be In The Future? 10-Year Predictions For The Industry

The first innovation we will examine is the transition of the standard cell architecture towards higher efficiency designs. The industry-standard design (known as aluminum back surface field, Al-BSF) currently accounts for 80% of silicon cells manufactured, but its share is predicted to shrink in the next few years. A more sophisticated design, the PERC cell (passivated emitter and rear cell), is expected to become dominant. PERC cells can achieve higher efficiency via the inclusion of a non-continuous dielectric (insulating) layer at the back side. By virtue of its optical properties, this layer improves the reflection at the aluminum electrode, which has the consequence that more light gets reflected back into the cell for a second chance at absorption. An additional benefit is a reduction in electrical losses at the back (Al) side. Shown in Figure 2 are schematics of an...

Full article: https://cleantechnica.com/2017/08/15/efficient-will-solar...

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