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The quest of deciphering the true nature of dark energy has proven to be oneof the most exciting in recent times in cosmology. Various ideas have been putforward in this regard besides the usual cosmological constant approach,ranging from scalar field based models like Quintessence and Phantom darkenergy to various modified gravity approaches as well. A very interesting ideathen is to consider scalar field dark energy models in quantum gravitationallycorrected cosmologies with the RS-II Braneworld being one of the most wellknown in this regard. So in this work, we consider RS-II Braneworld basedscalar field dark energy models and try to look out for the existence of finitetime singularities in these regimes both through a dynamical systemperspective, for which we employ the Goriely-Hyde singularity analysis method,and a physical perspective. Our approach is general in the sense that it is notlimited to any particular class of potentials or for any constrained parameterregion for the brane tension and is valid for both Quintessence and phantomdark energy regimes. We firstly show through Goriely-Hyde procedure that finitetime singularities can exist in these models for a limited set of initialconditions and that this result would hold irrespective of any considerationgiven to the swampland dS conjecture. We then discuss the physical nature ofthe singularities that can occur in this regime, where we use a well motivatedansatz for the Hubble parameter and show that these models of dark energy canallow for weak singularities like those of Type III and Type IV and can alsoallow for strong singularities like the Big Rip (Type I).

On finite time singularities in scalar field dark energy models based in the RS-II Braneworld