Catalysts 2019, 9, 161 5 of 9 oxidation number of 2, it can act as a reducing agent that removes O2 and expedite water decomposition as follows: 2H2O + h 2H2 + O2 (1) 2CH3OH + O2 2CO2 + 2H2 (2)
Band structure engineering in metal halide perovskite …
Band structure engineering in metal halide perovskite ...
Triple-halide wide–band gap perovskites with suppressed phase …
Inorganic-organic perovskites tuned to the appropriate wide band gap (∼1.7 electron volts) as top cells that contained iodine and bromine or bromine and …
Enhancing Efficiency of Large-Area Wide-Bandgap Perovskite …
Wide-bandgap (WBG) perovskites play a crucial role in perovskite-based tandem cells. Despite recent advances using self-assembled monolayers (SAMs) to facilitate efficiency breakthroughs, achieving precise control over the deposition of such ultrathin layers remains a significant challenge for large-scale fabrication of WBG perovskite and, …
Ligand-free Cs2PdBr6 perovskite microcrystals with narrow bandgap …
Ligand-free Cs 2 PdBr 6 MCs perovskite photoactive substance based high-performance PEC platform.. Narrow band gap, wide absorption range, high electronic mobility and good stability in aqueous solutions. • The photocurrent density is as high as 98 μA cm −2 under 10.18 mW cm −2 light irradiation without other electron acceptors.. …
How To Correctly Determine the Band Gap Energy of Modified Semiconductor Photocatalysts Based on …
How To Correctly Determine the Band Gap Energy of Modified ...
Role of NiO in wide-bandgap perovskite solar cells based on self …
Firstly, we examine the surface atomic arrangement of NiO nanoparticles and ITO surface as it is where SAMs are assembled. The X-ray diffraction (XRD) result shows that the ITO exposes four freely-oriented diffraction peaks of (2 1 1), (2 2 2), (4 0 0), and (4 1 1) (Fig. 1 a), while the NiO surface exposes two highly-preferred crystal facets of …
Revealing defective interfaces in perovskite solar cells from highly ...
From the changes in the sub-bandgap EQE with the size of the optical cavity, we infer that at least one of the defects in p–i–n perovskite solar cells is located at the i–n interface.
Zn-based oxide perovskite nanocomposites for energy and …
The classical example of undistorted ABO 3-type perovskite structure can be described within a cubic unit cell, where B atoms are positioned at the center of the cube, the more voluminous A cations are situated at the corners, and the O anions are located at the midpoints of the faces (Fig. 2a). The ideal perovskite structure is however …
Advances in the Application of Perovskite Materials
Advances in the Application of Perovskite Materials
Inorganic wide-bandgap perovskite subcells with dipole bridge for …
All-perovskite tandem solar cells consisting of wide-bandgap (WBG) perovskite (~1.8 eV) and narrow-bandgap (NBG) perovskite (~1.2 eV) absorber layers …
Stabilizing efficient wide-bandgap perovskite in perovskite …
Applying this approach, we achieve a power conversion efficiency (PCE) of 18.52% in 1.86 eV wide-bandgap perovskite solar cells. By integrating this perovskite …
Inorganic wide-bandgap perovskite subcells with dipole bridge for …
Inorganic wide-bandgap perovskite subcells with dipole ...
Tuning the Band Gap in the Halide Perovskite CsPbBr
Tuning the Band Gap in the Halide Perovskite CsPbBr3 ...
Binary cations minimize energy loss in the wide-band-gap …
Our result demonstrates a decent V OC above 1.30 V and a V OC × FF product of 1.061 V, achieving 87% and 77.5% of the detailed balance (DB) limit for a 1.80 …
A Review on Energy Band‐Gap Engineering for …
As most perovskites suffer large or indirect bandgap compared with the ideal bandgap range for single-junction solar cells, bandgap engineering has received tremendous attention in terms of …
Phase-Stable Wide-Bandgap Perovskites with 2D/3D Structure …
The phase-stable WBG perovskite solar cells achieved a high open-circuit voltage of 1.35 V with a power conversion efficiency of 19.4% and retain 92.1% of their …
Lithium lanthanum titanate perovskite as an anode for lithium ion ...
Lithium lanthanum titanate perovskite as an anode for ...
Bandgap prediction of ABX3-type perovskites using Broad …
1. Introduction. Perovskite materials have become a hot research topic owing to their higher-optical absorption [1], longer carrier-diffusion length [2], suitable and easily adjustable bandgap [3].Especially in solar cells, perovskite materials have garnered attention of scholars and experts worldwide because of their performance potentials, …
Recent developments in perovskite materials, fabrication …
Recent developments in perovskite materials, fabrication ...
Band-gap tuning of lead halide perovskites using a sequential …
Band-gap tuning of lead halide perovskites using a ...
How To Correctly Determine the Band Gap Energy of Modified ...
How To Correctly Determine the Band Gap Energy of Modified ...
Crystallization control of air-processed wide-bandgap perovskite …
However, most of the current reports on the preparation of perovskite in the ambient air environment focused on MAPbI 3, while there are fewer reports on MA-free FA x Cs 1-x PbI 3 perovskite, especially for wide-bandgap (>1.6 eV) FA x Cs 1-x PbI 3 perovskites with high Cs content, which possess better thermal stability and are …
Tunable hybrid perovskites with a narrow bandgap and …
Zero-dimensional perovskites have received extensive attention in recent years due to their unique structural properties, including large exciton binding energies, strong quantum confinement effects, and good stability. Target products were precisely constructed from existing organic–inorganic hybrid perovsk
Machine learning for perovskite materials design and discovery
Machine learning for perovskite materials design and ...
Band Gap Renormalization at Different Symmetry Points in Perovskites …
Using ultrafast broad-band transient absorption (TA) spectroscopy of photoexcited MAPbBr3 thin films with probe continua in the visible and the mid- to deep-ultraviolet (UV) ranges, we capture the ultrafast renormalization at the fundamental gap at the R symmetry point of the Brillouin zone (BZ) and a higher energy gap at the M …
Suppression of phase segregation in wide-bandgap perovskites …
Mixed halide wide-bandgap perovskites are suitable for integration in tandem photovoltaics such as perovskite/organic tandem solar cells. However, halide phase segregation originating from halogen ...
