1. INVERTED VERSUS DIRECT STRUCTURE BULK HETEROJUNCTION ORGANIC SOLAR CELLS INVOLVING A TRIPHENYLAMINE-BASED SMALL MOLECULAR DONOR. Authors: JEAN RONCALI, ION GROSU, ANAMARIA TEREC, NICULINA DANIELA HӐDAD, ELENA BOGDAN, ISTVAN KOVACS, LORANT SZOLGA, GAVRIL-IONEL GIURGI.