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Table 3 Band gap and electron affinity of Cu(In1−xGax)Se2 alloy composition

From: An investigation into the effects of band gap and doping concentration on Cu(In,Ga)Se2 solar cell efficiency

Ga/(In + Ga) ratio, x

Band gap, Eg

Electron affinity, χe

0.0

1.04

4.61

0.3

1.20

4.25

0.7

1.40

3.93

1.0

1.67

3.41

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