Maria Antonietta Loi
University of Groningen
288 Papers
1.7K Citations
Maria Antonietta Loi is an academic researcher from University of Groningen. The author has contributed to research in topics: Perovskite (structure) & Photoluminescence. The author has an hindex of 63, co-authored 254 publications. Previous affiliations of Maria Antonietta Loi include Johannes Kepler University of Linz & University of Cagliari.
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Papers
Effects of strontium doping on the morphological, structural, and photophysical properties of FASnI(3) perovskite thin films
Abstract: Doping engineering has been an effective technique applied extensively to enrich semiconductors and modulate their fundamental properties for electronic and optoelectronic applications. In this work, we report the influence of strontium (Sr) doping on solution-processed formamidinium tin iodide (FASnI3) perovskite thin films. We show that the addition of the Sr2+ dopant to the host perovskite drastically changes the morphology of the material but has no significant effect on the structural phase for doping concentrations lower than 10%. Using photoluminescence spectroscopy, we showed that for doping contents below 15%, the film is heterogeneously doped and strontium predominantly resides at the surface of the film. Above 15% of Sr, the bulk of the material is significantly doped. Our results show that Sr doping into FASnI3 perovskite can be a route for the attainment of new perovskites with interesting physical properties.
Tracing charge transfer states in polymer:fullerene bulk-heterojunctions
Marianna Manca,Claudia Piliego,Ergang Wang,Mats Andersson,Andrea Mura,Andrea Mura,Maria Antonietta Loi +6 more
TL;DR: In this article, the relationship between photophysical and morphological features of a prototypical organic bulk-heterojunction is investigated in blends with different donor-acceptor ratios by correlating imaging with photoluminescence spectra measured in different areas of the blends, the charge transfer state emission is unambiguously assigned to microscopical regions in which the intermixing of the two organic semiconductors is higher.
Unravelling Light-Induced Degradation of Layered Perovskite Crystals and Design of Efficient Encapsulation for Improved Photostability
Hong-Hua Fang,Jie Yang,Shuxia Tao,Sampson Adjokatse,Machteld E. Kamminga,Jianting Ye,Graeme R. Blake,Jacky Even,Maria Antonietta Loi +8 more
TL;DR: In this paper, the effect of light on layered hybrid perovskites was investigated by using in situ techniques including confocal laser scanning microscopy, wide-field fluorescence microscopy and atomic force microscopy.
High‐Mobility Ambipolar Transport in Organic Light‐Emitting Transistors
Franco Dinelli,Raffaella Capelli,Maria Antonietta Loi,Mauro Murgia,Michele Muccini,Antonio Facchetti,Tobin J. Marks +6 more
TL;DR: In this article, a two-component layered structure of organic light-emitting transistors (OLETs) with balanced ambipolar transport and mobility as large as 3 × 10 cm V s is presented.
Ambipolar all-polymer bulk heterojunction field-effect transistors
TL;DR: In this paper, the authors demonstrate solution processable all-polymer based field effect transistors (FETs) exhibiting comparable electron and hole mobilities, showing that the active layer is a fine network of the two components, as confirmed by atomic force microscopy phase images.