Structural color coatings for single junction and multijunction solar cells - optical spectroscopy, colorimetric photography, and power loss analysis

Abstract

The colorimetric and photovoltaic efficiency of different structural color coatings, including cellulose nanocrystals, were compared with spectrophotometry, photography, and power loss analysis in view of their application in solar architecture.

Efficiency limits and design principles for multi-junction coloured photovoltaics

“…However, the study by Halme & Ma ¨kinen only covered PCE limits for single-junction solar cells (SJSCs); the PCE limits for coloured multi-junction solar cells (MJSCs), which can reach higher efficiencies than SJSCs, have not yet been addressed in the literature. Moreover, there are only a few examples demonstrating the application of colour on multijunction solar cells; 19 the focus in MJSC development has been on high power output, since aesthetics are not a key concern for the current major applications (e.g. use on satellites or for space exploration, and in concentrator PV).…”