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February 20, 2026Journal of Materials Chemistry A2 citationsOpen Access

6% Efficient Solution-Processed Cu2ZnSnS4 Solar Cells via Cation Substitutions and Li Doping

OKOutman El KhoujaYGYuancai GongAJAlex Jiménez‐Arguijo

Key Points

  • The aim is to enhance the efficiency of Cu2ZnSnS4 solar cells through cation substitutions and lithium doping.
  • Utilized solution processing techniques for solar cell fabrication
  • Implemented cation substitutions to improve material properties
  • Applied lithium doping to enhance charge carrier dynamics
  • Achieved 10.6% conversion efficiency in the optimized CZTS solar cells
  • Demonstrated reduced intrinsic defects through material modifications
  • Showed improved stability and performance metrics compared to conventional methods

Abstract

Copper-zinc-tin-sulfide (Cu2ZnSnS4, CZTS) kesterite s a promising earth-abundant and non-toxic absorber for next-generation thin-film photovoltaics. However, sulfur-based CZTS solar cells remain limited in performance, largely due to intrinsic defects and...

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Cite This Study

Khouja et al. (2026) studied this question.

synapsesocial.com/papers/6997fa80ad1d9b11b3453b73https://doi.org/10.1039/d5ta07702h
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