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Recent insights for achieving mixed halide perovskites without halide segregation
(Elsevier, 2018-10)
The incorporation of halide perovskites in optoelectronics has provided a fast advance in the fabrication of new sensitizers with a balanced light-harvesting, free carrier transportation, and a progressive overcoming of ...
Effect of Light Illumination on Mixed Halide Lead Perovskites: Reversible or Irreversible Transformation
(American Chemical Society, 2018)
One intriguing aspect of mixed halide lead perovskites (e.g., CH3NH3PbBrxI3–x) is halide ion segregation when subjected to visible illumination, but this aspect gives rise to the concerns regarding the influence of halide ...
Effect of Environmental Humidity on the Electrical Properties of Lead Halide Perovskites
(ACS, 2018-12)
In large quantities, water is detrimental to lead halide perovskite solar cells, mainly because of the decomposition of the perovskite layer. In contrast, the presence of small quantities of water has been observed to play ...
IrIII/AuI and RhIII/AuI Heterobimetallic Complexes as Catalysts for the Coupling of Nitrobenzene and Benzylic Alcohol
(American Chemical Society, 2018)
Two simple bisimidazolium salts derived from m- or
p-bisimidazolebenzenes have been used as ligand precursors for the
preparation of a series of heterobimetallic RhIII/AuI and IrIII/AuI
complexes. All complexes have ...
Switching Off Hysteresis in Perovskite Solar Cells by Fine‐Tuning Energy Levels of Extraction Layers
(Wiley, 2018-07-25)
Lead halide perovskites often suffer from a strong hysteretic behavior on their j–V response in photovoltaic devices that has been correlated with slow ion migration. The electron extraction layer has frequently been pointed ...
Insight into Photon Recycling in Perovskite Semiconductors from the Concept of Photon Diffusion
(American Physical Society, 2018)
Photon recycling has been proven to be an important process in metal halide perovskite thin films. We
propose a model of photon recycling based on the photon diffusion concept that can interpret experimental observations ...
1H-1,2,3-Triazol-5-ylidenes: Readily Available Mesoionic Carbenes
(American Chemical Society, 2018)
Classical carbenes are usually described as neutral compounds featuring a divalent carbon with only six electrons in their valence shell. It was only in 1988 that our group prepared the first isolable example, in which the ...
Unravelling the role of vacancies in lead halide perovskite through electrical switching of photoluminescence
(Nature Research, 2018)
We address the behavior in which a bias voltage can be used to switch on and off the
photoluminescence of a planar film of methylammonium lead triiodide perovskite (MAPbI3)
semiconductor with lateral symmetric electrodes. ...
Quantum dot-sensitized solar cells
(Royal Society of Chemistry, 2018)
Quantum dot-sensitized solar cells (QDSCs) have emerged as a promising candidate for next-generation solar cells due to the distinct optoelectronic features of quantum dot (QD) light-harvesting materials, such as high ...
Pyrene-Connected Tetraimidazolylidene Complexes of Iridium and Rhodium. Structural Features and Catalytic Applications
(American Chemical Society, 2018)
A pyrene-connected tetra-imidazolium salt has been prepared starting from
commercially available 1,3,6,8-tetrabromopyrene, and used as tetra-NHC precursor in the
preparation of tetranuclear Rh(I) and Ir(I) complexes. The ...