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Your search keyword '"Apostolis Verykios"' showing total 2 results
Start Over Author "Apostolis Verykios" Publisher royal society of chemistry (rsc)
2 results on '"Apostolis Verykios"'

1. Defect passivation in perovskite solar cells using an amino-functionalized BODIPY fluorophore

Author

Anastasia Soultati, Marinos Tountas, Azhar Fakharuddin, Maria-Christina Skoulikidou, Apostolis Verykios, Konstantina-Kalliopi Armadorou, Nikolaos Tzoganakis, Veroniki P. Vidali, Ilias Sakellis, Panagiota Koralli, Christos L. Chochos, Ioannis Petsalakis, Emmanouil Nikoloudakis, Leonidas C. Palilis, Petros-Panagis Filippatos, Panagiotis Argitis, Dimitris Davazoglou, Abd. Rashid bin Mohd Yusoff, Emmanuel Kymakis, Athanassios G. Coutsolelos, and Maria Vasilopoulou

Subjects
Fuel Technology, Renewable Energy, Sustainability and the Environment, Energy Engineering and Power Technology
Abstract

The presence of defects formed during the growth and crystallization of perovskite films is a limiting factor to achieve high efficiency and stability in perovskite solar cells.

Published
2022

2. A silanol-functionalized polyoxometalate with excellent electron transfer mediating behavior to ZnO and TiO2 cathode interlayers for highly efficient and extremely stable polymer solar cells

Author

Lukas Schmidt-Mende, Theodoros A. Papadopoulos, Yasemin Topal, Maria Vasilopoulou, Kostas Seintis, Andreas Kaltzoglou, Dimitris Tsikritzis, Florian Auras, Marinos Tountas, Polycarpos Falaras, Stella Kennou, Mahmut Kus, Anastasia Soultati, Apostolis Verykios, Mihalis Fakis, Spyros Gardelis, Panagiotis Argitis, Leonidas C. Palilis, Azhar Fakharuddin, and Dimitris Davazoglou

Subjects
Solar cells, Surface passivation, Materials science, Passivation, Oxide, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, Polymer solar cell, Electron transfer, Poly (3-hexylthiophene), chemistry.chemical_compound, Zinc oxide, Organic-inorganic hybrid, Materials Chemistry, ddc:530, Work function, Zinc compounds, Cathode interlayers, Oxides, Polymer solar cells, Titanium oxides, General Chemistry, Inverted photovoltaic, 021001 nanoscience & nanotechnology, Electron transitions, Surface energy, 0104 chemical sciences, Chemical engineering, chemistry, Metals, Polyoxometalate, Titanium dioxide, Temporal stability, Collector efficiency, Titanium compounds, Ambient conditions, 0210 nano-technology
Abstract

Combining high efficiency and long lifetime under ambient conditions still poses a major challenge towards commercialization of polymer solar cells. Here we report a facile strategy that can simultaneously enhance the efficiency and temporal stability of inverted photovoltaic architectures. Inclusion of a silanol-functionalized organic–inorganic hybrid polyoxometalate derived from a PW9O34 lacunary phosphotungstate anion, namely (nBu4N)3[PW9O34(tBuSiOH)3], significantly increases the effectiveness of the electron collecting interface, which consists of a metal oxide such as titanium dioxide or zinc oxide, and leads to a high efficiency of 6.51% for single-junction structures based on poly(3-hexylthiophene):indene-C60 bisadduct (P3HT:IC60BA) blends. The above favourable outcome stems from a large decrease in the work function, an effective surface passivation and a decrease in the surface energy of metal oxides which synergistically result in the outstanding electron transfer mediating capability of the functionalized polyoxometalate. In addition, the insertion of a silanol-functionalized polyoxometalate layer significantly enhances the ambient stability of unencapsulated devices which retain nearly 90% of their original efficiencies (T90) after 1000 hours. published

Published
2018

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