Electrical and optical characterization of sprayed In2S3 thin films as an electron transporting layer in high efficient perovskite solar cells

Authorsمریم هاشمی,مهران مینباشی,سیدمحمدباقر قریشی,آرش قبادی,محمد حسین احسانی,مریم حیدری رامشه,علی حاجیها
JournalSOL ENERGY
Page number356
Volume number215
IFثبت نشده
Paper TypeFull Paper
Published At2021-01-18
Journal GradeScientific - research
Journal TypeElectronic
Journal CountryIran, Islamic Republic Of
Journal IndexJCR

Abstract

This study represents the investigation of In2S3 thin films, which have been deposited with different Indium salts (Chloride, Acetate, and Nitrate) using the Chemical Spray Pyrolysis (CSP) method. The Mott-Schottky analysis has been used in case of studying the electrical properties of films such as conduction and valence band, carrier densities, Fermi level (Efn), flat band potential, and semiconductor type. In the next step, the Rb1MAFA perovskite solar cell has been simulated, and the results have been validated by the experimental data (with the least parameters for fitting). Finally, In2S3 layers have been inserted on the SnO2 layer to decrease the recombination rate and enhance the efficiency of the solar cell. The results represent that the In2S3 layers with acetate source improve the band bending at the perovskite/ETL interface, the electron transfer will increase, and the result would be an increment in the open-circuit voltage (VOC), as well as the cell PCE. The efficiency of 23.47% is the recorded PCE, which is approximately 3% more than the reference case.

tags: Rb1MAFA perovskite solar cellElectron Transport Layer (ETL)In2S3 thin films