Márton Kollár

Cette personne n’est plus à l’EPFL

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Publications associées (24)

Clean, cleaved surfaces of the photovoltaic perovskite

László Forró, Jeremy Luterbacher, Bálint Náfrádi, Henrik Moodysson Rønnow, Luka Ciric, Endre Horvath, Stefan Peter Muff, Jan Hugo Dil, Benjamin Pierre Le Monnier, Andrew Patton Weber, Márton Kollár

The surface of a material is not only a window into its bulk physical properties, but also hosts unique phenomena important for understanding the properties of a solid as a whole. Surface sensitive techniques, like ARPES (Angle-resolved photoemission spect ...

Nature Research2017

Optical detection of charge dynamics in CH3NH3PbI3/carbon nanotube composites

László Forró, Bálint Náfrádi, Endre Horvath, Pavao Roko Andricevic, Márton Kollár

We have investigated the optical absorption of metallic and semiconducting carbon nanotubes/CH3NH3PbI3 micro- and nanowire composites. Upon visible light illumination semiconducting carbon nanotube based samples show a photo-induced doping, originating fro ...

2017

Competitive ion-exchange of manganese and gadolinium in titanate nanotubes

László Forró, Bálint Náfrádi, Luka Ciric, Endre Horvath, Péter Szirmai, Márton Kollár

Homogeneous Mn2+ and Gd3+ intercalation of scroll-type trititanate nanotubes using a post-synthesis ion exchange method is reported. Compared to Mn2+, Gd3+ ion-exchange shows larger saturation intercalation levels. Upon co-doping, weak interactions between ...

Elsevier Science Bv2017

Three-Dimensionally Enlarged Photoelectrodes by a Protogenetic Inclusion of Vertically Aligned Carbon Nanotubes into CH3NH3PbBr3 Single Crystals

László Forró, Andrzej Sienkiewicz, Bálint Náfrádi, Klara Hernadi, Endre Horvath, Xavier François Mettan, Pavao Roko Andricevic, Márton Kollár

We demonstrate that single crystals of methylammonium lead bromide (MAPbBr(3)) could be grown directly on vertically aligned carbon nanotube (VACNT) forests. The fast-growing MAPbBr3 single crystals engulfed the protogenetic inclusions in the form of indiv ...

2017

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