?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Tregnago%2C+G&rft.aufirst=G&rft.aulast=Tregnago&rft.issue=21&rft.pages=11846-11851&rft.issn=1932-7447&rft.title=Journal+of+Physical+Chemistry+C&rft.atitle=Low-Temperature+Photoluminescence+Spectroscopy+of+Solvent-Free+PCBM+Single-Crystals&rft.volume=119&rft.date=28+May+2015&rft.genre=article