RT Journal Article T1 Impact of Graphene Monolayer on the Performance of Non-Conventional Silicon Heterojunction Solar Cells with MoOx Hole-Selective Contact A1 Ros Costals, Eloi A1 Fernández Ruano, Susana María A1 Ortega Villasclaras, Pablo A1 Taboada Cabellos, Elena A1 Arnedo Gil, Israel A1 Gandía Alabau, José Javier A1 Voz Sánchez, Cristobal A2 Bouclé, Johann A2 Møller Greve, Martin AB In this work, a new design of transparent conductive electrode based on a graphene monolayer is evaluated. This hybrid electrode is incorporated into non-standard, high-efficiency crystalline silicon solar cells, where the conventional emitter is replaced by a MoOx selective contact. The device characterization reveals a clear electrical improvement when the graphene monolayer is placed as part of the electrode. The current–voltage characteristic of the solar cell with graphene shows an improved FF and Voc provided by the front electrode modification. Improved conductance values up to 5.5 mS are achieved for the graphene-based electrode, in comparison with 3 mS for bare ITO. In addition, the device efficiency improves by around 1.6% when graphene is incorporated on top. These results so far open the possibility of noticeably improving the contact technology of non-conventional photovoltaic technologies and further enhancing their performance. PB MDPI SN 1996-1944 YR 2023 FD 2023-01-31 LK https://hdl.handle.net/20.500.14352/103513 UL https://hdl.handle.net/20.500.14352/103513 LA eng NO 2023 Descuento MDPI NO Agencia Estatal de Investigación NO Ministerio de Ciencia, Innovación y Universidades (España) DS Docta Complutense RD 10 abr 2025