As an author, you will have a copyright in your dissertation. As with any other author, you can transfer these rights, or permit others to make use of your work. See the Publishing / Author Rights page of our Copyright researchguide for information on how copyright applies to you as an author.
Because copyright does not apply to facts or ideas, any facts or ideas generated by original research conducted by doctoral students is not subject to copyright. However, a doctoral students writeup or analysis of their research would be protected by copyright.