6533b86dfe1ef96bd12ca195
RESEARCH PRODUCT
Influence of doped charge transport layers on efficient perovskite solar cells
Pablo P. BoixJorge ÁVilaSteve AlbrechtHenk J. BolinkMichele SessoloLidón Gil-escrigsubject
Solar cells of the next generationMaterials scienceEnergy Engineering and Power Technology02 engineering and technologyElectron010402 general chemistry7. Clean energy01 natural scienceslaw.inventionlawSolar cellAbsorption (electromagnetic radiation)Perovskite (structure)chemistry.chemical_classificationRenewable Energy Sustainability and the Environmentbusiness.industryDopingElectron acceptor021001 nanoscience & nanotechnology0104 chemical sciencesFuel TechnologychemistryElectrodeOptoelectronics0210 nano-technologybusinessCurrent densitydescription
Planar vacuum deposited p–i–n methyl ammonium lead tri-iodide perovskite solar cells are prepared with different electron and hole transporting layers, either doped or undoped. The effect of these layers on the solar cells performance (efficiency and stability) is studied. The main benefit of using doped layers lies in the formation of barrier free charge extraction contacts to the electrodes. However, this comes at the cost of increased residual absorption (reducing the current density and efficiency of the cells) and a decreased stability. A generic solar cell structure using undoped charge extraction layers is presented, containing a thin layer of a strong electron acceptor in between the transparent electrode and the hole transport layer, that leads to efficiencies of 18% and a significant (>5 times) improvement of the stability.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-01-01 |