6533b826fe1ef96bd12847eb

RESEARCH PRODUCT

Molecular Passivation of MoO3: Band Alignment and Protection of Charge Transport Layers in Vacuum-Deposited Perovskite Solar Cells

Pablo P. BoixChris DreessenLidón Gil-escrigDaniel Pérez-del-reyMichele SessoloHenk J. BolinkKassio P. S. ZanoniKassio P. S. Zanoni

subject

Materials sciencePassivationbusiness.industryGeneral Chemical EngineeringExtraction (chemistry)Charge (physics)02 engineering and technologyGeneral Chemistry010402 general chemistry021001 nanoscience & nanotechnology01 natural sciences0104 chemical sciencesVacuum depositionMaterials ChemistryOptoelectronicsMOLIBDÊNIO0210 nano-technologybusinessMaterialsCèl·lules fotoelèctriquesPerovskite (structure)

description

Vacuum-deposition of perovskite solar cells can achieve efficiencies rivalling solution-based methods and it allows for more complex device stacks. MoO3 has been used to enhance carrier extraction to the transparent bottom electrode in a p-i-n configuration, here we show that by inserting an organic charge transport molecule it can also be used on the top of a perovskite absorber in a n-i-p configuration. This strategy enables the first vacuum-deposited perovskite solar cells with metal oxides as charge transporting layers for both electrons and holes leading to power conversion efficiency > 19 %.

10.1021/acs.chemmater.9b01396https://hdl.handle.net/10550/75161