Sequential Li-intercalation exfoliation enables high-purity NbSe 2 with enhanced electrical and thermal performance

Key Points

• The aim is to enhance the purity and performance of NbSe2 nanosheets through a novel exfoliation method.
• Utilized sequential lithium intercalation for exfoliation of NbSe2.
• Focused on removing oxide-rich residues and disordered fragments.
• Evaluated the electrical and thermal performance post-exfoliation.
• Achieved high-purity NbSe2 nanosheets with improved crystallinity.
• Reduced electrical resistance significantly.
• Demonstrated rapid and uniform Joule-heating performance.