1. Materials and Engineering Research Institute Sheffield Hallam University City Campus, Howard Street Sheffield S1 1WB UK
2. Catalyst and Materials Department Johnson Matthey Technology Centre Blounts Court, Sonning Common Reading RG4 9NH UK
3. PV Technology Centre Solar Capture Technologies Albert Street Blyth NE24 1LZ UK
4. Built Environment Division, Glass Section RISE Research Institutes of Sweden Växjö SE‐351 96 Sweden
5. Safety and Transport Division, Time and Optics Section RISE Research Institutes of Sweden P.O. Box 857 Borås SE‐501 15 Sweden