Gebhard J. Matt

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Two universal reconstruction methods for photoacoustic (also called optoacoustic or thermoacoustic) computed tomography are derived, applicable to an arbitrarily shaped detection surface. In photoacoustic tomography acoustic pressure waves are induced by illuminating a semitransparent sample with pulsed electromagnetic radiation and are measured on a(More)
UNLABELLED A scalable, hysteresis-free and planar architecture perovskite solar cell is presented, employing a flame spray synthesized low-temperature processed NiO (LT-NiO) as hole-transporting layer yielding efficiencies close to 18%. Importantly, it is found that LT-NiO boosts the limits of open-circuit voltages toward an impressive non-radiative voltage(More)
The evolution of real-time medical diagnostic tools such as angiography and computer tomography from radiography based on photographic plates was enabled by the development of integrated solid-state X-ray photon detectors, based on conventional solid-state semiconductors. Recently, for optoelectronic devices operating in the visible and near infrared(More)
Tandem architecture is the most relevant concept to overcome the efficiency limit of single-junction photovoltaic solar cells. Series-connected tandem polymer solar cells (PSCs) have advanced rapidly during the past decade. In contrast, the development of parallel-connected tandem cells is lagging far behind due to the big challenge in establishing an(More)
In colloidal nanoparticle (NPs) devices, trap state densities at their surface exert a profound impact on the rate of charge carrier recombination and, consequently, on the deterioration of the device performance. Here, we report on the successful application of a ligand exchange strategy to effectively passivate the surface of cuprite (Cu2O) NPs. Cu2O NPs(More)
In the past few years, hybrid organic-inorganic and all-inorganic metal halide perovskite nanocrystals have become one of the most interesting materials for optoelectronic applications. Here, we report a facile and rapid room temperature synthesis of 15-25 nm formamidinium CH(NH2)2PbX3 (X = Cl, Br, I, or mixed Cl/Br and Br/I) colloidal nanocrystals by(More)
Formamidinium Lead Halide Perovskite FAPbX3 (X = Cl, Br, I) Colloidal Nanocrystals Ievgen Levchuk,* Andres Osvet, Xiaofeng Tang, Marco Brandl, Jose ́ Darío Perea, Florian Hoegl, Gebhard J. Matt, Rainer Hock, Miroslaw Batentschuk, and Christoph J. Brabec Nano Lett. 2017, 17 (5), pp 2765−2770. DOI:10.1021/acs.nanolett.6b04781 O page 2766, line 25 (left side)(More)
  • Serdar Niyazi Sariciftci, David Mühlbacher, +13 authors Attila Mozer
  • 2002
I want to thank all the people who supported and helped me to prepare this work: all of them for fruitful discussions and suggestions and especially Antonio Cravino and Markus Scharber for experimental help • The staff of QSEL • The international collaborators who provided the materials, Abstract Low bandgap polymers are of great interest for the use(More)