Fedros Galatopoulos, Ioannis T Papadas, Gerasimos S Armatas, Stelios A Choulis, Long thermal stability of inverted                      perovskite photovoltaics incorporating fullerene-based diffusion blocking layer, Adv. Mater. Interfaces, 2018

   Ioannis T Papadas, Achilleas Savva, Apostolos Ioakeimidis, Polyvios Eleftheriou, Gerasimos S Armatas, Stelios A                                Choulis, Employing surfactant-assisted hydrothermal synthesis to control CuGaO 2 nanoparticle formation and                        improved carrier selectivity of perovskite solar cells, Materials Today Energy, 8, 2018

   Ioannis T Papadas, Apostolos Ioakeimidis, Gerasimos S Armatas, Stelios A Choulis, Low‐Temperature Combustion                          Synthesis of a Spinel NiCo2O4 Hole Transport Layer for Perovskite Photovoltaics, Adv. Sci, 5, 2018.

   Efthymios Georgiou, Stelios A Choulis, Felix Hermerschmidt, Sergey M Pozov, Ignasi Burgués‐Ceballos, Constantinos                          Christodoulou, Gerburg Schider, Stefanie Kreissl, Richard Ward, Emil JW List‐Kratochvil, Christine Boeffel, Printed Copper                  Nanoparticle Metal Grids for Cost‐Effective ITO‐Free Solution Processed Solar Cells, Sol. RRL,2, 2018.


    Ignasi Burgués-Ceballos, Achilleas Savva, Efthymios Georgiou, Konstantinos Kapnisis,Paris Papagiorgis, Androniki Mousikou,             Grigorios Itskos, Andreas Othonos, Stelios AChoulis, The influence of additives in the stoichiomtery of hybrid lead halide             perovskite, AIP Advances 7(11), 2017.

    Achilleas Savva, Ioannis T. Papadas, Dimitris Tsikritzis, Gerasimos S. Armatas, Stella Kennoun, Stelios A. Choulis, Room                    Temperature Nanoparticulate interfacial layers for perovskite solar cells via solvothermal synthesis, Journal of                          Materials Chemistry A. 2017.

    Fedros Galatopoulos, Achilleas Savva, Ioannis T. Papadas, Stelios A. Choulis, The effect of hole transporting layer in                      charge accumulation properties of p-i-n perovskite soalr cells, Applied Physics Letters, 5, 2017.

Felix Hermerschmidt, Achilleas Savva, Efthymios Georgiou et. al,  Influence of the Hole Transporting Layer on the Thermal Stability of Organic Inverted Photovoltaics using accelerated heat lifetime protocols, Applied Materials and Interfaces 9,  2017. 


pdfZhidkov, S.I, McLeod, J.A, Kurmaev, E.Z, Korotin, M.A, Kukharenko, A.I, Savva, A, Choulis, S.A, Korotin, D.M, Cholakh, S.O, The appearance of Ti3+ states in solution processed TiOx buffer layers in organic photovoltaics,Applied Physics Letters, 109, 2016, (DOI)

 pdfSavva,A., Burgués-Ceballos, I. ,Choulis, S.A. , Improved Performance and Reliability of p-i-n Perovskite Solar Cells via Doped Metal Oxides , Advanced Energy Materials, 2016, (DOI)

pdfTruhkhanov,V.A., Mannanov, A.L., Burgués-Ceballos, I., Savva,A., Choulis,S.A., Solodukhin, A.N., Luponosov, Yu,N., Ponomarenko,S.A., Paraschuk, D.Yu., Solution processed star-shaped oligomers in normal and inverted soalr cells, Synthetic Metals, 2016, 229-234, (DOI)


Burgués-Ceballos, I., Hermerschmidt, F., Akkuratov, A. V., Susarova, D. K., Troshin, P. A., Choulis, S. A., High-Performing Polycarbazole Derivatives for Efficient Solution-Processing of Organic Solar Cells in Air, ChemSusChem, accepted (DOI)

Itskos,G., Othonos, A., Choulis, S. A., Iliopoulos, E., Förster resonant energy transfer from an inorganic quantum well to a molecular material: Unexplored aspects, losses, and implications to applications, J. Chem. Phys. 2015, 143, 214701 (DOI)

Savva, A., Burgués-Ceballos, I., Papazoglou, G., Choulis, S.A., High performance inverted organic photovoltaics without hole selective contact, ACS Appl. Mater. Interfaces 2015, accepted. (DOI)

Giannouli, M., Drakonakis, V.M., Savva, A., Eleftheriou, P., Florides, G., Choulis, S.A., Methods for improving the lifetime performance of organic photovoltaics with low-costing encapsulation, ChemPhysChem 2015, Vol. 16, pp 1134–1154. (DOI)

Hermerschmidt, F., Kalogirou, A.S., Min, J., Zissimou, G.A., Tuladhar, S.M., Ameri, T., Faber, H., Itskos, G., Choulis, S.A., Anthopoulos, T.D., Bradley, D.D.C., Nelson, J., Brabec, C.J., Koutentis, P.A., 4H-1, 2, 6-Thiadiazin-4-one-containing small molecule donors and additive effects on their performance in solution-processed organic solar cells, Journal of Materials Chemistry C 2015, Vol. 3, pp. 2358-2365. (DOI)

Hermerschmidt, F., Pouloupatis, P.D., Partasides, G., Lizides, A., Hadjiyiannakou, S., Choulis, S.A., Beyond solar radiation management - the strategic role of low-cost photovoltaics in solar energy production, International Journal of Sustainable Energy 2015, Vol. 34, pp. 211-220. (DOI)

Savva, A., Georgiou, E., Papazoglou, G., Chrusou, A.Z., Kapnisis, K., Choulis, S.A., Photovoltaic analysis of the effects of PEDOT: PSS-additives hole selective contacts on the efficiency and lifetime performance of inverted organic solar cells, Solar Energy Materials and Solar Cells 2015, Vol. 132, pp. 507-514. (DOI)


Georgiou, E., Savva, A., Neophytou, M., Hermerschmidt, F., Demosthenous, T., Choulis, S.A., Evaporation-free inverted organic photovoltaics using a mixture of silver nanoparticle ink formulations for solution-processed top electrodesApplied Physics Letters 2014, Vol. 105, art. no. 233901. (DOI)

Drakonakis, V.M., Savva, A., Kokonou, M., Choulis, S.A., Investigating electrodes degradation in organic photovoltaics through reverse engineering under accelerated humidity lifetime conditionsSolar Energy Materials and Solar Cells 2014, Vol. 130, pp. 544-550. (DOI)

Hermerschmidt, F., Papagiorgis, P., Savva, A., Christodoulou, C., Itskos, G., Choulis, S.A., Inkjet printing processing conditions for bulk-heterojunction solar cells using two high-performing conjugated polymer donorsSolar Energy Materials and Solar Cells 2014, Vol. 130, pp. 474-480. (DOI)

Madsen, M.V., Gevorgyan, S.A., Pacios, R., Ajuria, J., Etxebarria, I., Kettle, J., Bristow, N.D., Neophytou, M., Choulis, S.A., et al.Worldwide outdoor round robin study of organic photovoltaic devices and modulesSolar Energy Materials and Solar Cells 2014, Vol. 130, pp. 281-290. (DOI)

Neophytou, M., Georgiou, E., Fyrillas, M.M., Choulis, S.A., Two step sintering process and metal grid design optimization for highly efficient ITO free organic photovoltaics, Solar Energy Materials and Solar Cells 2014, Vol. 122, pp. 1-7. (DOI)

Tsokkou, D., Papagiorgis, P, Protesescu, L., Kovalenko, M.V., Choulis, S.A., Christofides, C., Itskos, G., Othonos, A., Photophysics of PbS Quantum Dot Films Capped with Arsenic Sulfide Ligands, Advanced Energy Materials2014, Vol. 4 (7), art. no. 1301547. (DOI)


Savva, A., Neophytou, M., Koutsides, C., Kalli, K., Choulis, S.A., Synergistic effects of buffer layer processing additives for enhanced hole carrier selectivity in inverted organic photovoltaicsOrganic Electronics 2013, Vol. 14 (11), pp. 3123-3130. (DOI)

Itskos, G., Papagiorgis, P., Tsokkou, D., Othonos, A., Hermerschmidt, F., Economopoulos, S.P., Yarema, M., Heiss, W., Choulis, S.A., Size-dependent charge transfer in blends of PbS quantum dots with a low gap silicon-bridged copolymer, Advanced Energy Materials 2013, Vol. 3 (11), pp. 1490-1499. (DOI)

Economopoulos, S.P., Koutentis, P.A., Ioannidou, H.A., Choulis, S.A.,Identifying potential candidates for donor-acceptor copolymers on a series of 4H-1,2,6-thiadiazines: An electrochemical approach,Electrochimica Acta 2013, Vol. 107, pp. 448-453. (DOI)

Savva, A., Choulis, S.A., Cesium-doped zinc oxide as electron selective contact in inverted organic photovoltaics, Applied Physics Letters 2013, Vol. 102 (23), art. no. 233301. (DOI)

Tsokkou, D., Itskos, G., Choulis, S.A, Yarema, M., Heiss, W., Othonos, A., Concentration and excitation effects on the exciton dynamics of poly(3-hexylthiophene)/PbS quantum dot blend films, Nanotechnology2013, Vol. 24 (23), art. no. 235707. (DOI)

Economopoulos, S.P., Chochos, C.L., Ioannidou, H.A., Neophytou, M., Charilaou, C., Zissimou, G.A., Frost, J.M., Tuladhar, S., Shahid, M., Nelson, J., Heeney, M., Bradley, D.D.C, Itskos, G., Koutentis, P.A., Choulis, S.A., Novel BODIPY-based conjugated polymer donors for organic photovoltaic applications, RSC Advances 2013, Vol. 3 (26), pp. 10221-10229. (DOI)

Itskos, G., Xristodoulou, X., Iliopoulos, E., Ladas, S., Kennou, S., Neophytou, M., Choulis, S.A., Electronic and interface properties of polyfluorene films on GaN for hybrid optoelectronic applicationsApplied Physics Letters 2013, Vol. 102 (6), art. no. 063303. (DOI)

Savva, A., Petraki, F., Elefteriou, P., Sygellou, L., Voigt, M., Giannouli, M., Kennou, S., Nelson, J., Bradley, D.D.C., Brabec, C.J., Choulis, S.A., The effect of organic and metal oxide interfacial layers on the performance of inverted organic photovoltaicsAdvanced Energy Materials 2013, Vol. 3 (3), pp. 391-398. (DOI)


Neophytou, M., Hermerschmidt, F., Georgiou, E., Savva, A., Choulis, S.A.,Highly efficient indium tin oxide-free organic photovoltaics using inkjet-printed silver nanoparticle current collecting gridsApplied Physics Letters 2012, Vol. 101 (19), art. no. 193302. (DOI)

Neophytou, M., Cambarau, W., Hermerschmidt, F., Waldauf, C., Christodoulou, C., Pacios, R., Choulis, S.A., Inkjet-printed polymer-fullerene blends for organic electronic applicationsMicroelectronic Engineering 2012, Vol. 95, pp. 102-106. (DOI)

Neophytou, M, Ioannidou, H.A., Ioannou, T.A., Chochos, C.L., Economopoulos, S.P., Koutentis, P.A., Itskos, G., Choulis, S.A., 2-(2,3,4,5,6-Pentafluorophenyl)-1H-benzo[d] imidazole, a fluorine-rich building block for the preparation of conjugated polymer donors for organic solar cell applications, Polymer Chemistry 2012, Vol. 3 (8), pp. 2236-2243. (DOI)

Othonos, A., Itskos, G., Neophytou, M., Choulis, S.A, Excitation dynamics of a low bandgap silicon-bridged dithiophene copolymer and its composites with fullerenes, Applied Physics Letters 2012, Vol. 100 (15), art. no. 153303. (DOI)

Vitoratos, E., Sakkopoulos, S., Paliatsas, N., Emmanouil, K., Choulis, S.A., Conductivity degradation study of PEDOT: PSS films under heat treatment in helium and atmospheric airOpen Journal of Organic Polymer Materials 2012, Vol. 2 (1), pp. 7-11. (DOI)


Chochos, C.L., Choulis, S.A., How the structural deviations on the backbone of conjugated polymers influence their optoelectronic properties and photovoltaic performance, Progress in Polymer Science2011, Vol. 36 (10), pp. 1326-1414. (DOI)

Itskos, G., Othonos, A., Rauch, T., Tedde, S.F., Hayden, O., Kovalenko, M.V., Heiss, W., Choulis, S.A., Optical properties of organic semiconductor blends with near-infrared quantum-dot sensitizers for light harvesting applications, Advanced Energy Materials 2011, Vol. 1 (5), pp. 802-812. (DOI)


Vitoratos, E., Sakkopoulos, S., Dalas, E., Paliatsas, N., Emmanouil, K., Malkaj, P., Choulis, S.A., Correlation between thickness, conductivity and thermal degradation mechanisms of PEDOT:PSS films, AIP Conference Proceedings2010, Vol. 1203, pp. 178-181. (DOI)

Hoth, C.N., Schilinsky, P., Choulis, S.A., Brabec, C.J., Photovoltaic loss analysis of inkjet-printed polymer solar cells using pristine solvent formulations, Macromolecular Symposia 2010, Vol. 291-292 (1), pp. 287-292. (DOI)


Steim, R., Choulis, S.A., Schilinsky, P., Lemmer, U., Brabec, C.J., Formation and impact of hot spots on the performance of organic photovoltaic cells, Applied Physics Letters 2009, Vol. 94 (4), art. no. 043304. (DOI)

Boix, P.P., Garcia-Belmonte, G., Munecas, U., Neophytou, M., Waldauf, C., Pacios, R., Determination of gap defect states in organic bulk heterojunction solar cells from capacitance measurements, Applied Physics Letters 2009, Vol. 95 (23), art. no. 233302. (DOI)

Steim, R., Schilinsky, P., Choulis, S.A., Brabec, C.J., Flexible polymer photovoltaic modules with incorporated organic bypass diodes to address module shading effects, Solar Energy Materials and Solar Cells 2009, Vol. 93 (11), pp. 1963-1967. (DOI)

Hoth, C.N., Choulis, S.A., Schilinsky, P., Brabec, C.J., On the effect of poly(3-hexylthiophene) regioregularity on inkjet printed organic solar cellsJournal of Materials Chemistry 2009, Vol. 19 (30), pp. 5398-5404. (DOI)

Hoth, C.N., Steim, R., Schilinsky, P., Choulis, S.A., Tedde, S.F., Hayden, O., Brabec, C.J., Topographical and morphological aspects of spray coated organic photovoltaics, Organic Electronics 2009, Vol. 10 (4), pp. 587-593. (DOI)

Tuladhar, S.M., Sims, M., Choulis, S.A., Nielsen, C.B., George, Wayne.N., Steinke, J.H.G., Bradley, D.D.C., Nelson, J., Influence of side chain symmetry on the performance of poly(2,5-dialkoxy-p-phenylenevinylene):fullerene blend solar cells, Organic Electronics 2009, Vol. 10 (4), pp. 562-567. (DOI)

Vitoratos, E., Sakkopoulos, S., Dalas, E., Paliatsas, N., Karageorgopoulos, D., Petraki, F., Kennou, S., Choulis, S.A, Thermal degradation mechanisms of PEDOT:PSS, Organic Electronics 2009, Vol. 10 (1), pp. 61-66. (DOI)


Hauch, J.A., Schilinsky, P., Choulis, S.A., Rajoelson, S., Brabec, C.J., The impact of water vapor transmission rate on the lifetime of flexible polymer solar cells, Applied Physics Letters 2008, Vol. 93 (10), art. no. 103306. (DOI)

Hoth, C.N., Schilinsky, P., Choulis, S.A., Brabec, C.J., Printing highly efficient organic solar cells, Nano Letters 2008, Vol. 8 (9), pp. 2806-2813. (DOI)

Hauch, J.A., Schilinsky, P., Choulis, S.A., Childers, R., Biele, M., Brabec, C.J., Flexible organic P3HT:PCBM bulk-heterojunction modules with more than 1 year outdoor lifetime, Solar Energy Materials and Solar Cells 2008, Vol. 92 (7), pp. 727-731. (DOI)

Steim, R., Choulis, S.A., Schilinsky, P., Brabec, C.J., Interface modification for highly efficient organic photovoltaics, Applied Physics Letters 2008, Vol. 92 (9), art. no. 093303. (DOI)