77 citations · 283 across the 12 of their papers we have counts for
6 papers · 2 filters
Influence of the Hole Transporting Layer on the Thermal Stability of Inverted Organic Photovoltaics Using Accelerated Heat Lifetime Protocols
Felix Hermerschmidt, Achilleas Savva, Efthymios Georgiou +7
High power conversion efficiency (PCE) inverted organic photovoltaics (OPVs) usually use thermally evaporated MoO3 as a hole transporting layer (HTL). Despite the high PCE values r…
The Effect of Hole Transporting Layer in Charge Accumulation Properties of p-i-n Perovskite Solar Cells
Fedros Galatopoulos, Achilleas Savva, Ioannis T. Papadas +1
The charge accumulation properties of p-i-n perovskite solar cells were investigated using three representative organic and inorganic hole transporting layer (HTLs): a) Poly(3,4-et…
Room Temperature Nanoparticulate Interfacial Layers for Perovskite Solar Cells via solvothermal synthesis
Achilleas Savva, Ioannis T. Papadas, Dimitris Tsikritzis +3
We present a solvothermal synthetic route to produce monodispersed CuO nanoparticles (NPs) in the range of 5-10 nm that can be used as hole selective interfacial layer between indi…
The influence of additives in the stoichiometry of hybrid lead halide perovskites
Ignasi Burgués-Ceballos, Achilleas Savva, Efthymios Georgiou +6
We investigate the employment of carefully selected solvent additives in the processing of a commercial perovskite precursor ink and analyze their impact on the performance of orga…
Low Temperature Combustion Synthesis of a Spinel NiCo2O4 Hole Transport Layer for Perovskite Photovoltaics
Ioannis T. Papadas, Apostolos Ioakeimidis, Gerasimos S. Armatas +1
In the present study, we report the synthesis and characterization of a low-temperature solution-processable monodispersed nickel cobaltite (NiCo2O4) nanoparticles via a combustion…
Employing surfactant-assisted hydrothermal synthesis to control CuGaO2 nanoparticle formation and improved carrier selectivity of perovskite solar cells
Ioannis T. Papadas, Achilleas Savva, Apostolos Ioakeimidis +3
Delafossites like CuGaO2 have appeared as promising p-type semiconductor materials for opto-electronic applications mainly due to their high optical transparency and electrical con…