Chelikowsky, James R.Vasiliev, IgorÖgüt, Serdar2004-12-102004-12-1020012001http://hdl.handle.net/2003/1849410.17877/DE290R-16139enThe American Physical SocietyPhysical Review Letters530Ab Initio Absorption Spectra and Optical Gaps in Nanocrystalline Silicon10.1103/PhysRevLett.86.1813article (journal)