About: http://webisa.webdatacommons.org/37447993

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	In which h?? is the photon energy, ?? is the absorption coefficient Eg is the absorption band gap and B is a constant relative to the material.
http://www.w3.org/ns/prov#wasQuotedFrom	nmletters.org