Cu sub(2)ZnSn(S,Se) sub(4) solar cell absorbers processed from Na-containing solutions in DMSO

Cu sub(2)ZnSn(S,Se) sub(4) absorbers were processed from metal salt solutions in dimethyl sulfoxide (DMSO) and annealed in reactive Se atmosphere. A simple way to introduce sodium doping by adding NaCl to the initial precursor solution is presented. The additional sodium has no significant effect on...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Physica status solidi. A, Applications and materials science Applications and materials science, 2015-01, Vol.212 (1), p.116-120
Hauptverfasser: Werner, M, Sutter-Fella, C M, Hagendorfer, H, Romanyuk, YE, Tiwari, AN
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Cu sub(2)ZnSn(S,Se) sub(4) absorbers were processed from metal salt solutions in dimethyl sulfoxide (DMSO) and annealed in reactive Se atmosphere. A simple way to introduce sodium doping by adding NaCl to the initial precursor solution is presented. The additional sodium has no significant effect on the absorber morphology, but it improves the device performance from 5.01% to 6.09%. The sodium doping clearly reduces the recombination rate as manifested in a higher J sub(sc.) and enhanced carrier collection. It is also shown that the absorber layer thickness should be optimized to 1.5 mu m. By reducing the absorber thickness we found a facile way to extend the well crystallized top crust over the whole absorber and thus improve the solar cell performance.
ISSN:1862-6300
1862-6319
DOI:10.1002/pssa.201431146