LI-DOPED CZTS, SYNTHESIZED BY SPIN-COATING, FOR IMPROVED PV CELL PERFORMANCE

Aliti, Ramadan and PUTTHISIGAMANY, Yoganash and RISTOVA, Mimoza (2024) LI-DOPED CZTS, SYNTHESIZED BY SPIN-COATING, FOR IMPROVED PV CELL PERFORMANCE. JNSM Journal of Natural Sciences and Mathematics of UT, 9 (17-18). pp. 489-497. ISSN 2671-3039

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Abstract

In this work we present а comparative study of two photovoltaic cells based on n-type CZTS (Cu2ZnSnS4) kesterite-type thin films, using (a) an undoped pristine CZTS absorber and (b) doped with Li CZTS absorber, both integrated into photovoltaic (PV) cells, incorporating CdS thin film as an n-type buffer layer. The morphological, structural, compositional, optical, and electrical properties of both absorbers CZTS and CZTS:Li were studied by SEM-EDX, XRD, Vis-NIR spectroscopy, Hall-effect, and four-point probe measurements, revealing the impact on the Li-doping. The evaluation of the band gap was made using Tauc-plots. The influence of Li-doping in the CZTS films was scrutinized through the comparative study of the IV characteristics of PV cells. The results showed that the Li-doped CZTS yields better efficiency η=0,83% versus 0,53% for pristine CZTS absorber and better cell parameters, except for the Fill-Factor.

Item Type:	Article
Uncontrolled Keywords:	CZTS, thin films, spin coating, doping, co-doping, alkali metals, sol-gel
Subjects:	Q Science > QC Physics
Divisions:	Faculty of Engineering, Science and Mathematics > School of Physics
Depositing User:	Unnamed user with email zshi@unite.edu.mk
Date Deposited:	26 Dec 2024 14:51
Last Modified:	26 Dec 2024 14:51
URI:	http://eprints.unite.edu.mk/id/eprint/1979

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