Think Physics’ host institution Northumbria University has a PhD studentship available. Here’s the title:
Impact of Academic Research through Northumbria’s STEM outreach activities on the uptake of STEM disciplines by young people
I know, right? Snappy.
Importantly: there’s a full stipend available for this PhD, for three years at RCUK rates and fees.
There’s a full description of the project on offer at Find a PhD.com, and you can apply through that site too. At the time of writing this post the application deadline appears to be rather soon; that will be extended to later in July, so you’ve time to think it through.