6533b873fe1ef96bd12d44db

RESEARCH PRODUCT

Low Temperature, Vacuum-Processed Bismuth Triiodide Solar Cells with Organic Small-Molecule Hole Transport Bilayer

Paz Sebastia-lunaHenk J. BolinkMichele SessoloFrancisco Palazon

subject

Materials sciencebusiness.industryBilayerchemistry.chemical_elementPhotochemistrySmall moleculeBismuthchemistry.chemical_compoundGeneral EnergychemistryPhotovoltaicsEnergiaTriiodidebusinessCèl·lules fotoelèctriques

description

Herein, the preparation of fully vacuum-processed bismuth triiodide solar cells with low annealing temperature is reported. Planar n-i-p devices are prepared using a thin compact SnO2 layer as the electron extraction layer and an electron blocking/hole extraction bilayer consisting of an intrinsic and doped organic hole-transport molecule. Using this configuration, herein, higher fill-factors and overall power conversion efficiencies than with conventional solution-processed hole transport materials are achieved.

yearjournalcountryeditionlanguage
2021-11-05
10.1002/ente.202100661https://doi.org/10.1002/ente.202100661