Anju, K. Augustine; Dr.Kailasnath, M; Prof. V P N Nampoori(Cochin University of Science and Technology, June 23, 2015)
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Abstract:
In general, linear- optic, thermo- optic and nonlinear- optical studies
on CdSe QDs based nano
uids and their special applications in solar
cells and random lasers have been studied in this thesis. Photo acous-
tic and thermal lens studies are the two characterization methods used
for thermo- optic studies whereas Z- scan method is used for nonlinear-
optical charecterization. In all these cases we have selected CdSe QDs
based nano
uid as potential photonic material and studied the e ect of
metal NPs on its properties.
Linear optical studies on these materials have been done using vari-
ous characterization methods and photo induced studies is one of them.
Thermal lens studies on these materials give information about heat
transport properties of these materials and their suitability for applica-
tions such as coolant and insulators. Photo acoustic studies shows the
e ect of light on the absorption energy levels of the materials. We have
also observed that these materials can be used as optical limiters in the
eld of nonlinear optics. Special applications of these materials have
been studied in the eld of solar cell such as QDSSCs, where CdSe QDs
act as the sensitizing materials for light harvesting. Random lasers have
many applications in the eld of laser technology, in which CdSe QDs
act as scattering media for the gain.