Table 4 Defect parameters at both czts/cds and BSF/CZTS interfaces.

From: Optimizing photovoltaic efficiency in CZTS solar cells by investigating the role of different advanced materials as back surface field layer

Parameters

CZTS/CdS interface

BSF/CZTS interface

Defect type

Neutral

Neutral

Capture cross-section of electrons (cm2)

10−19

10−19

Capture cross-section of holes (cm2)

10−19

10−19

Reference for defect energy level Et

above the highest Ev

above the highest Ev

Energy with respect to reference (eV)

0.6

0.6

Total density (cm−2)

108−1018

108−1018

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