Green luminescence from triphenylphosphine functionalized single-wall carbon nanotubes

► Simple chemical precipitation technique to synthesize SWCNT/triphenylphosphine (Ph3P) nanohybrid. ► Triphenylphosphine (Ph3P) nanocrystals of average size 27 nm are attached to SWCNT surfaces. ► SEM/EDAX, HRTEM, FTIR and Raman spectroscopy confirm the nanostructure. ► Green photoluminescence in 450-575 nm range with peak emission at 500 nm. ► May find wide applications in sensor-based devices.