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Coupling between Ion Drift and Kinetics of Electronic Current Transients in MAPbBr3 Single Crystals
(American Chemical Society, 2022-03-11)
The optoelectronic properties of halide perovskite materials have fostered their utilization in many applications. Unravelling their working mechanisms remains challenging because of their mixed ionic–electronic conductive ...
Self-supported ultra-active NiO-based electrocatalysts for the oxygen evolution reaction by solution combustion
(Royal Society of Chemistry, 2021-04-20)
The oxygen evolution reaction (OER) is a fundamental process to develop a technology that can drive energy transition towards renewable and sustainable fuels. Nevertheless, efficient and straightforward methodologies to ...
Surface versus Bulk Currents and Ionic Space-Charge Effects in CsPbBr3 Single Crystals
(American Chemical Society, 2022-04-25)
CsPbBr3 single crystals have potential for application in ionizing-radiation detection devices due to their optimal optoelectronic properties. Yet, their mixed ionic–electronic conductivity produces instability and hysteretic ...
Efficient carbon dioxide hydrogenation to formic acid with buffering ionic liquids
(Springer Nature, 2021-01-11)
The efficient transformation of CO2 into chemicals and fuels is a key challenge for the decarbonisation of the synthetic production chain. Formic acid (FA) represents the first product of CO2 hydrogenation and can be a ...
Quantifying the Absorption Onset in the Quantum Efficiency of Emerging Photovoltaic Devices
(Wiley, 2021-04-28)
The external quantum efficiency (EQE), also known as incident-photon-to-collected-electron spectra are typically used to access the energy dependent photocurrent losses for photovoltaic devices. The integral over the EQE ...
Spectral properties of the dynamic state transition in metal halide perovskite-based memristor exhibiting negative capacitance
(American Institute of Physics, 2021-02-15)
The evolution of device properties in memristor switching between high- and low-resistance states is critical for applications and is still highly subjected to significant ambiguity. Here, we present the dynamic state ...
Dimensional Matching versus Induced‐Fit Distortions: Binding Affinities of Planar and Curved Polyaromatic Hydrocarbons with a Tetragold Metallorectangle
(Wiley, 2020-04-20)
A tetragold(I) rectangle‐like metallocage containing two pyrene‐bis‐imidazolylidene ligands and two carbazolyl‐bis‐alkynyl linkers is used for the encapsulation of a series of polycyclic aromatic hydrocarbons (PAHs), ...
Mechanisms of charge accumulation in the dark operation of perovskite solar cells
(Royal Society of Chemistry, 2016)
In this work, a new current peak at forward bias in the dark current–voltage curves has been identified
for standard mesoscopic perovskite solar cells. This characteristic peak appears only under some specific
conditions, ...
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 ...
Unveiling the stereoelectronic properties of a triphenylene-based tris N-heterocyclic carbene
(Royal Society of Chemistry, 2013-06-14)
Two rhodium complexes with a triphenylene-based tris-NHC have been fully characterized. DFT and electrochemical studies suggest that the electronic communication between the metals is very weak, and that the electron ...