About: http://webisa.webdatacommons.org/56440546

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	it is easy to see how improving solar cells is a critical step towards an affordable hydrogen economy.What we need, says Tom Mallouk, is good cheap materials that do what a solar cell already does pretty well.
http://www.w3.org/ns/prov#wasQuotedFrom	psu.edu