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Evaluating carbon dots as electron mediators in photochemical and photocatalytic processes of NiFe2O4

Ombaka, Lucy M.; Dillert, Ralf; Robben, Lars; Bahnemann, Detlef W. (College Park : American Institute of Physics, 2020)

Spinel ferrites such as nickel ferrite are promising energy conversion photocatalysts as they are visible-light absorbers, chemically stable, earth abundant, and inexpensive. Nickel ferrite shows poor photocatalytic activity ...
Experimental setup for camera-based measurements of electrically and optically stimulated luminescence of silicon solar cells and wafers

Hinken, David; Schinke, Carsten; Herlufsen, Sandra; Schmidt, Arne; Bothe, Karsten; Brendel, Rolf (College Park, MD : American Institute of Physics, 2011)

We report in detail on the luminescence imaging setup developed within the last years in our laboratory. In this setup, the luminescence emission of silicon solar cells or silicon wafers is analyzed quantitatively. Charge ...
Impact of Ag Pads on the Series Resistance of PERC Solar Cells

Schulte-Huxel, Henning; Witteck, Robert; van Laak, Paula; Brendemühl, Till; Hinken, David; Bothe, Karsten; Brendel, Rolf (London : Elsevier Ltd., 2016)

Screen-printed passivated emitter and rear cells (PERC) require Ag pads on the rear side to enable solderable connections for module integration. These Ag pads are separated from the silicon by a dielectric layer to avoid ...
Photoexcitation of PbS nanosheets leads to highly mobile charge carriers and stable excitons

Lauth, Jannika; Failla, Michele; Klein, Eugen; Klinke, Christian; Kinge, Sachin; Siebbeles, Laurens D.A. (Cambridge : Royal Society of Chemistry, 2019)

Solution-processable two-dimensional (2D) semiconductors with chemically tunable thickness and associated tunable band gaps are highly promising materials for ultrathin optoelectronics. Here, the properties of free charge ...
Revealing the Effect of Nanoscopic Design on the Charge Carrier Separation Processes in Semiconductor-Metal Nanoparticle Gel Networks

Schlenkrich, Jakob; Zámbó, Dániel; Schlosser, Anja; Rusch, Pascal; Bigall, Nadja C. (Weinheim : Wiley-VCH, 2022)

In this paper, it is shown that the nanoscopic design of combining semiconductors and noble metals has a direct impact on the macroscopic (electrochemical) properties of their assembled, hyperbranched, macroscopic gel ...
Understanding charge transfer processes on metal oxides - A laser-flash-photolysis study

Sieland, Fabian; Schneider, Jenny; Lippmann, Thorsten; Bahnemann, Detlef W. (Bellingham, WA : S P I E - International Society for Optical Engineering, 2016)

In the focus of this study, mixtures of commercially available TiO2 powders were created and their photocatalytic activity concerning the acetaldehyde degradation in the gas phase was tested. Further, the lifetime of the ...

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Browsing by Subject "Charge carriers"

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