A leading journal in the area of clean energy technology, Energy & Environmental Science (EES), recently published a special issue that contains a series of 5 review articles on photoelectrochemical (PEC) water splitting for the production of hydrogen from sunlight. Collectively the articles provide an overview of the state of the art in PEC technology, current understanding of PEC operation, characterization techniques for the development of PEC materials, and highlight key challenges and opportunities in the field.
You can find all of the articles on this page: http://pubs.rsc.org/en/journals/journalissues/ee#!recentarticles&adv
as well as an editorial that summarizes the different articles and state of the field: http://pubs.rsc.org/en/content/articlelanding/2015/ee/c5ee90047f#!divAbstract
Esposito Research Group Blog 