Introduction: Solar Energy Conversion

This thematic issue contains reviews of various aspects of Solar Energy Conversion. The sun provides the largest energy source known to man, with more energy from sunlight striking the earth in 1 h than all of the energy consumed on the planet in an entire year. Solar panels provide a known, scalable technology to capture and convert sunlight into electricity. Moreover, the costs of Si-based photovoltaic panels have declined continuously in the past decade, to the point where solar electricity is now cost-competitive in certain regions and niche markets. Nevertheless, solar energy conversion continues to attract fervent efforts devoted to the discovery and development of new materials, concepts, devices, and systems that can provide new and/or dramatically improved functionality and scalability.