Flexible ITO-free organic solar cells applying aqueous solution-processed V2O5 hole transport layer: an outdoor stability study

• Autor(a) principal: Lima, Francisco Anderson de Sousa
• Data de Publicação: 2016
• Outros Autores: Beliatis, Michail, Roth, Bérenger, Andersen, Thomas Rieks, Bortoti, Andressa Antunes, Reyna, Yegraf, Castro, Eryza Guimarães de, Vasconcelos, Igor Frota de, Gevorgyan, Suren, Krebs, Frederik Christian, Lira-Cantu, Mónica
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da Universidade Federal do Ceará (UFC)
• Texto Completo: http://www.repositorio.ufc.br/handle/riufc/67547
• topic: Flexible ITO-free organic solar cells; Lifetime of thin film solar cells; Hole-transport layer in stable organic solar cells (OPV)

Solution processable semiconductor oxides have opened a new paradigm for the enhancement of the lifetime of thin film solar cells. Their fabrication by low-cost and environmentally friendly solution-processable methods makes them ideal barrier (hole and electron) transport layers. In this work, we fabricate flexible ITO-free organic solar cells (OPV) by printing methods applying an aqueous solution-processed V2O5 as the hole transport layer (HTL) and compared them to devices applying PEDOT:PSS. The transparent conducting electrode was PET/Ag/PEDOT/ZnO, and the OPV configuration was PET/Ag/PEDOT/ZnO/P3HT:PC60BM/HTL/Ag. Outdoor stability analyses carried out for more than 900 h revealed higher stability for devices fabricated with the aqueous solution-processed V2O5.