Tunable White-Light-Emitting Mn-Doped ZnSe Nanocrystals
Sharma, V. K.
Demir, H. V.
ACS Applied Materials and Interfaces
American Chemical Society
3654 - 3660
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We report white-light-emitting Mn-doped ZnSe nanocrystals (NCs) that are synthesized using modified nucleation doping strategy. Tailoring three distinct emission mechanisms in these NCs, which are MnSe-related blue emission (410 and 435 nm), Zn-related defect state green emission (520 nm), and Mn-dopant related orange emission (580 nm), allowed us to achieve excitation wavelength tailorable white-light generation as studied by steady state and time-resolved fluorescence spectroscopy. These NCs will be promising as single component white-light engines for solid-state lighting.
Transmission Electron Microscopy