How to list custom taxonomy posts on a page

Hi All.

I have custom taxonomy named as ‘portfolio-category’. I also have a category say Cat1 and also have subcategories in it say subcat1, subcat2 and have posts in each subcategories.

I have created a page with the name ‘taxonomy-portfolio-category.php’ so it is called when custom taxonomy is viewed.

When I click on the Cat1, page is showed where the Subcat1 and Subcat2 are being displayed. But when i click on the subcat1 nothing is displayed.

Please let me know with which name I would create a .php file to it is called when i click on the Subcat1 or Subcat2.

Thanks