Full text loading...
Electronic absorption and PL spectra (broken lines) of Mn-doped ZnS nanoparticles and TPD (blue lines) in chloroform solutions.
Current-voltage and EL-current plots of devices based on TPD/Mn-doped ZnS heterostructures, namely, ITO/PEDOT:PSS/TPD/Mn-doped ZnS/Al. Thickness of the nanoparticle layer has been varied by the concentration of the spinning solution (as specified in the legends). Inset of (b) shows a plot of EQE vs current density for a device, where nanoparticles were spun from 10 mg/ml solution.
EL spectra of a device based on TPD/Mn-doped ZnS heterostructure under different applied voltages (as shown in the legends). Here the nanoparticles were spun from 10 mg/ml solution.
Electronic absorption and PLspectra (broken lines) of chloroform solutions of core-shell nanoparticles with Mn-doped ZnS nanoparticles in the core and CdS in the shell.
EL spectra of a device based on TPD/Mn-doped ZnS:CdS core-shell heterostructure under applied voltages as shown in the legends. Here the nanoparticles were spun from 30 mg/ml solution. Inset shows image of an LED in operation under 4.5 V.
Article metrics loading...