Abstract
The ternary Cu–Bi–S based semiconductor with abundant and environmental-friendly elements may provide alternative choice for near-infrared (NIR) light-emitting sources. High-quality copper bismuth sulfide Cu4Bi4S9 (CBS) nanobelts of controllable lengths up to 1cm were synthesized through a modified solvothermal route by using solvents of varied boiling points (BP) and changing reaction temperatures (RT) to control the competition of efficient collision of Cu4Bi4S9 seeds, intermediate species and precursors and growth of Cu4Bi4S9 nanobelts. Their NIR photoluminescence (PL) of Cu4Bi4S9 nanobelts was firstly observed in the range of 1400–2200nm, which showed the transition characteristics of mixed direct and indirect-bands nearby. The absorption and PL spectral data could be well accounted for by the ab initio band calculations of Cu4Bi4S9.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
