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Redox-Switchable Complexes Based on Nanographene-NHCs
(Wiley, 2022-05-30)
A series of rhodium and iridium complexes with a N-heterocyclic carbene (NHC) ligand decorated with a perylene-diimide-pyrene moiety are described. Electrochemical studies reveal that the complexes can undergo two successive ...
Enhanced nanoscopy of individual CsPbBr3 perovskite nanocrystals using dielectric sub-micrometric antennas
(AIP Publishing, 2020-02-11)
We demonstrate an efficient, simple, and low-cost approach for enhanced nanoscopy in individual green emitting perovskite (CsPbBr3)nanocrystals via TiO2dielectric nanoantenna. The observed three- to five-fold ...
Interpretation of the photoluminescence decay kinetics in metal halide perovskite nanocrystals and thin polycrystalline films
(Elsevier, 2020-05)
In this paper we present critical analysis of different points of view on interpretation of the photoluminescence (PL) decay kinetics in lead halide perovskites prepared in the form of well passivated nanocrystals (PNCs) ...
Radiative Recombination Processes in Halide Perovskites Observed by Light Emission Voltage Modulated Spectroscopy
(Wiley, 2023)
The kinetics of light emission in halide perovskite light-emitting diodes (LEDs) and solar cells is composed of a radiative recombination of voltage-injected carriers mediated by additional steps such as carrier trapping, ...
Strongly Coordinating Ligands To Form Weakly Coordinating Yet Functional Organometallic Anions
(American Chemical Society, 2019-12-05)
Weakly coordinating anions (WCAs) are generally tailored to act as spectators with little or no function. Here we describe the implementation of strongly coordinating dianionic carboranyl N-heterocyclic carbenes (NHCs) to ...
White light emission from lead-free mixed-cation doped Cs2SnCl6 nanocrystals
(Royal Society of Chemistry, 2022-01-13)
We have designed a synthesis procedure to obtain Cs2SnCl6 nanocrystals (NCs) doped with metal ion(s) to emit visible light. Cs2SnCl6 NCs doped with Bi3+, Te4+ and Sb3+ ions emitted blue, yellow and red light, respectively. ...
Guest-shuttling in a nanosized metallobox
(Wiley, 2024-01-05)
An iridium-conjoined long and narrow metallorectangle was obtained by combining a quinoxalinophenanthrophenazine-connected Janus-di-imidazolylidene ligand and pyrazine. The size and shape of this assembly together with the ...
New Views on Carrier Diffusion and Recombination by Combining Small Perturbation Techniques: Application to BiVO4 Photoelectrodes
(Wiley, 2022)
Impedance spectroscopy (IS), intensity-modulated photocurrent spectroscopy (IMPS), and intensity-modulated photovoltage spectroscopy (IMVS) are well-established powerful modulated techniques to characterize optoelectronic ...
Distinction between capacitive and noncapacitive hysteretic currents in operation and degradation of perovskite solar cells
(American Chemical Society, 2016)
Perovskite solar cells suffer from significant performance distortions under working conditions, usually known by the generic label of hysteretic effects. A classification of the fluctuations associated with current–voltage ...
Noncapacitive hysteresis in perovskite solar cells at room temperature
(American Chemical Society, 2016)
The current density−voltage (J−V) curves of perovskite
solar cells have been found to present a hysteresis-like distortion when
the measurement is done by sweeping the applied voltage at different
scan conditions. ...