Matrices upper triangular alignment

I was writing an upper triangular matrix but due to large entry was unable to get in a good view.

\documentclass[10pt,a4paper]{article}\usepackage[utf8]{inputenc}\usepackage{amsmath,mathtools}\usepackage{amsfonts}\usepackage{amssymb}\begin{document}   $$ J(\hat{\Phi})(p)=   \begin{pmatrix*}[c]   ((\hat{\Phi}(p)_{ij}))_{i,j=1}^r    &\hdots &   &  &\hdots   &                 ((\hat{\Phi}(p)_{ij}))_{i,j=1}^r                                  \\& \ddots      &     &    \vdots\\&      & \ddots    & &((\partial^{\alpha}\partial^{\beta}\hat{\Phi}(p)_{ij}))_{i,j=1}^r  &   \vdots        \\ \text{\huge0} &  &   &       &     \\& & & & & ((\partial_d^{k-1}\hat{\Phi}(p)_{ij}))_{i,j=1}^r\end{pmatrix*}$$\end{document}