الخلاصة:
In this work, we made monocrystals of KH2PO4 (KDP) doped with semiconductors
nanocrystals II-VI (CdSe).KDP crystals were grown by lowering method, from the aqueous
solution added with CdSe.
The structural characterization by X ray diffraction (XRD) confirms the presence of
CdSe in the metals.
The transmittance in FIR region shows the peaks relative to longitudinal optical
phonon frequency and transversal optical frequency.
Characterizations by optical absorption of samples of UV-Visible region confirm the
presence of CdSe nanocrystals.
Raman Scattering spectroscopy has reveals a response of our KDP samples to a
luminous excitation. According to the results, samples can be considered as laser active
mediums.
Characterization by photoluminescence at room temperature show two peaks in the
vicinity of gap of CdSe
