The effect of MoSe2 nanoparticles on the properties ZnO electron transport layer of organic solar cell

T.E. Seisembekova, А.К. Aimukhanov, А.К. Zeinidenov, Alexander Alexeev, D.R. Abeuov

Bulletin of the Karaganda University Physics Series, 2025

Full text Open access: Gold Metadata (CSL-JSON)
DOI 10.31489/2025ph2/19-26
Data confidence 70 medium
How this score is calculated

It is built from checkable properties of the record itself: whether the article has a DOI, how many independent sources confirmed its data, whether the required fields are filled in, and how recent the latest confirmation is. Disagreement between sources and a missing identifier lower it. A value of 80 or above means the record was published without further checking; 60 to 79 means it is published at reduced confidence, with a manual check advisable. A record verified by an editor by hand is never pushed below 90 by a recalculation. This scores our data about the article, not the article itself.

Abstract

This study investigates the impact of MoSe2 nanoparticle doping on the structural, optical, and electricalproperties of the ZnO electron transport layer (ETL), as well as its effect on the efficiency of organic solarcells (OSCs). ZnO:MoSe2 composites were synthesized using the sol-gel method, and their morphology wasanalyzed by transmission electron microscopy (TEM) and scanning electron microscopy (SEM). Optical studiesrevealed an increase in the bandgap width and enhanced defect-related emission, indicating improvedcharge carrier dynamics. Electrical measurements confirmed increased conductivity and reduced charge recombinationwith the addition of MoSe2. Organic solar cells based on ZnO:MoSe2 demonstrated enhancedphotovoltaic performance compared to pure ZnO devices. The optimal device was achieved at MoSe2 concentrationof 8 %, where the short-circuit current density (Jsc) increased from 7.25 mA/cm² to 10.02 mA/cm2, thefill factor (FF) improved from 0.37 to 0.52, and the power conversion efficiency (PCE) rose from 0.7 % to3.3 %. These results confirm the potential of ZnO:MoSe2 nanocomposites for high-performance optoelectronicand photovoltaic devices.