6533b7d3fe1ef96bd126125c

RESEARCH PRODUCT

Vacuum deposited perovskite solar cells employing dopant-free triazatruxene as the hole transport material

ÁNgela Sastre-santosLaura CaliòHenk J. BolinkShahzada AhmadLidón Gil-escrigMichele SessoloCristina MomblonaSamrana Kazim

subject

Materials scienceFabricationDopantSiliconRenewable Energy Sustainability and the Environmentbusiness.industryEnergy conversion efficiencyPhotovoltaic systemchemistry.chemical_element02 engineering and technology010402 general chemistry021001 nanoscience & nanotechnology01 natural sciences0104 chemical sciencesSurfaces Coatings and FilmsElectronic Optical and Magnetic Materialslaw.inventionHysteresischemistrylawSolar cellOptoelectronics0210 nano-technologybusinessPerovskite (structure)

description

Abstract Planar perovskite solar cells using organic charge selective contacts were fabricated. In a vacuum deposited perovskite-based solar cell, dopant and additive free triazatruxene as the hole transport layer was introduced for device fabrication. High open-circuit voltage of 1090 mV was obtained using methylammonium lead iodide (Eg=1.55 eV) as light harvesting material, thus representing a loss of only 460 mV which is in close vicinity of mature silicon technology (400 mV). The devices showed a very competitive photovoltaic performance, monochromatic incident photon-to-electron conversion efficiency of 80% and the power conversion efficiencies in excess of 15% were measured with a negligible degree of hysteresis.

https://doi.org/10.1016/j.solmat.2017.01.037