Abstract
In this paper, a CIGS material based solar cell structure is proposed. The efficiency of the designed structure is improved by considering ITO (Indium Tin Oxide) as a front contact. The detailed analysis of the device is carried out thoroughly using SILVACO ATLAS. Various design parameters such as open-circuit voltage (V-oc ), the voltage at maximum power density, short circuit current density (J(sc) ), maximum output power (P-m), and fill factor (FF), are calculated. CIGS solar cell with ITO as a front contact gives an improved efficiency of 23.074%. Thus, the proposed solar cell is a suitable candidate for ultra-high efficiencies. (C) 2019 Elsevier Ltd. All rights reserved. Selection and Peer-review under responsibility of the scientific committee of the International Confer- ence on Advanced Materials and Nanotechnology.