Monocrystalline Silicon Solar Cells

April 21, 2023

Chapter VII

Principles of Cell Design

Material Selections

General Design Features

Silicon Material Properties

400 nm

Doping Effects

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Recombination –doping affects carrier life time

Life Time of Carriers

Surface Recombination

Effect of doping on mobility and diffusion constant and resistivity

AR: n~2, thickness: 80~100 nm;

Ta2O5, TiO2, Si3N4

Optimization of Solar Cell

Optimization of Solar Cell

Strategies to enhance absorption

Strategies to enhance absorption

Strategies to reduce surface recombination

xj

Xj-Xj+

Strategies to reduce series resistance

PV cell efficiency = 22%

Passivated Emitter Rear Locally (PERL) diffused solar cell with cell efficiency of 24.4%