Study effect of window and BSF layers on the properties of the CZTS / CZTSe solar cell by SCAPS–1D

Abstract

The solar cell CZTS / CZTSe was studied using SCAPS-1D * computer simulator. It was noted that increasing the thickness of the absorber layer p-CZTSe from 250nm to 5μm leads to increase the IV curve. thus increasing the values of Voc, Jsc, FF

Simulation study of back surface and electron transport layers on Sb2Se3 solar Cell

“…The greater agreement values it gave us less heat energy wast and the second reason is that the decrease in value of the electronic affinity of back surface layer leads to an increase in the potential barrier, which leads to an increase in the number of photons reflected from the back surface [13]. Table (4) shows the results obtained when adding BSL to the cell basis with all parameters remaining constant . To study the effect of the influence on the quantum efficiency (QE), which is defined as the number of pairs of an electron hole generated due to the incident light on the solar cell.…”

“…One solution is to reduce the thickness or replace this layer with other layers with a wide energy gap such as (ZnO, CdO, V 2 O 5 , TiO 2 , ZnO: Al) as it is characterized by its high ability to absorb a large amount of wavelengths of light [3]. One of the things that is recommended to be added to this type of solar cell is a back reflection layer where it works to reflect the photons in force from the absorption layer, which increases the concentration of charge carriers and reduces the recombination ,increases the current of photons [4]. In this study, the compound (Sb2Se3), the effect of BSL and ETL on short circuit current (Jsc), open circuit voltage (Voc), fill factor (F.F.%) and conversion efficiency (eff%) been studied quantum efficiency is inversely proportional with wavelengths, depending on the equation (12).…”