112 citations · 393 across the 9 of their papers we have counts for
9 papers
Inverted Perovskite Photovoltaics using Flame Spray Pyrolysis Solution based CuAlO2/Cu-O Hole Selective Contact
Achilleas Savva, Ioannis T. Papadas, Dimitris Tsikritzis +10
We present the functionalization process of a conductive and transparent copper aluminum oxide, copper oxide alloy. The copper aluminum oxide, copper oxide powders were developed b…
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…
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…
High Performance Inverted Organic Photovoltaics Without Hole Selective Contact
Achilleas Savva, Ignasi Burgues-Ceballos, Giannis Papazoglou +1
A detailed investigation of the functionality of inverted organic photovoltaics (OPVs) using bare Ag contacts as top electrode is presented. The inverted OPVs without hole transpor…
Improved Performance and Reliability of p-i-n Perovskite Solar Cells via Doped Metal Oxides
Achilleas Savva, Ignasi Burgues-Ceballos, Stelios A. Choulis
Perovskite photovoltaics (PVs) have attracted attention because of their excellent power conversion efficiency (PCE). Critical issues related to large area PV performance, reliabil…
Characterization of solution processed TiOx buffer layers in inverted organic photovoltaics by XPS and DFT studies
Ivan S. Zhidkov, Ernst Z. Kurmaev, Michel A. Korotin +5
We present the results of XPS measurements (core levels and valence bands) of solution processed TiOx thin films prepared from titanium butoxide (C16H36O4Ti) diluted in isopropanol…