Quasiconformal properties of $Q_{p,0}$ curves and Dirichlet-type curves

Let $\mathrm{\Gamma }$ be a closed Jordan curve, and $f$ the conformal mapping that sends the unit disc $\mathbb{D}$ onto the interior domain of $\mathrm{\Gamma }$. If $\log f^{\mathrm{\prime }}$ belongs to the Dirichlet space $\mathcal{D}$, we call $\mathrm{\Gamma }$ a Weil-Petersson curve. The purpose of this note is to extend recent results, obtained by G. Cui and Ch. Bishop in the case of Weil-Petersson curves, to the case when $\log f^{\mathrm{\prime }}$ belongs to either some $Q_{p,0},$ space, for $0<p\le 1$, or to some weighted-Dirichlet space contained in $\mathcal{D}$. More precisely, we will characterize the quasiconformal extensions of $f$, and describe some of the geometric properties of $\mathrm{\Gamma }$, that arise in this context.