Bishop, James E.
Read, Connor D.
Smith, Joel A.
Routledge, Thomas J.
Lidzey, David G.
Article History
Received: 12 December 2019
Accepted: 31 March 2020
First Online: 20 April 2020
Competing interests
: D.G.L. is co-director of the company Ossila Ltd that retail materials and equipment for perovskite photovoltaic device research and development. The other authors have no competing interests.