Work

Optimization of Electron Affinity in In2s3 Buffer Layers for Cigs Solar Cells: a Silvaco Atlas Simulation Study

Year: 2026

Type: article

Abstract: This study aims to optimize the electron affinity of the indium sulfide (In2S3) buffer layer in CIGS solar cells in order to provide a non-toxic alternative to conventional CdS. In2 S3 exhibits several attractive properties, including a wide optical bandgap (2-2.9 eV), high optical transparency, and a tunable electron affinity that enables control of band alignment at the heterojunction interface.A numerical investigation was carried out using the SILVACO ATLAS device simulator to analyze the influence of the buffer-layer electron affinity (x = 4.0-4.8 eV) on the main photovoltaic parameters (J_SC,V_OC,FF, and n), as well as on the parasitic resistances (R_s and R_sh).

Source: International Journal of Advanced Research

DOI: 10.21474/ijar01/22924

Authors: Moussa Toure, Marcel Biagui, Youssou Gning, Aly Toure, Mamadou Lamine Samb

Institution: Université de Thiès

Language: English

Topic: Chalcogenide Semiconductor Thin Films

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: hybrid

OpenAlex ID: W7141114166