Defect Passivation via the Incorporation of Tetrapropylammonium Cation Leading to Stability Enhancement in Lead Halide Perovskite
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DOI: 10.1002/adfm.201909737
Abstract: Improving the performances of photovoltaic (PV) devices by suppressing nonradiative energy losses through surface defect passivation and enhancing the stability to the level of standard PV represents one critical challenge for perovskite solar cells. Here,… read more here.
Keywords: tetrapropylammonium; defect passivation; passivation via; spectroscopy ... See more keywords
Dual Passivation of Perovskite Defects for Light‐Emitting Diodes with External Quantum Efficiency Exceeding 20%
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DOI: 10.1002/adfm.201909754
Abstract: Solution‐processed metal halide perovskites (MHPs) have attracted much attention for applications in light‐emitting diodes (LEDs) due to their wide color gamut, high color purity, tunable emission wavelength, balanced electron/hole transportation, etc. Although MHPs are very… read more here.
Keywords: dual passivation; light emitting; passivation; emitting diodes ... See more keywords
Double‐Side Si Photoelectrode Enabled by Chemical Passivation for Photoelectrochemical Hydrogen and Oxygen Evolution Reactions
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DOI: 10.1002/adfm.202007222
Abstract: This paper describes a Si photoelectrode with an ultra‐long minority carrier diffusion length (1940 µm) passivated by an amorphous Si layer, which provides a chemically passivated surface. With this extremely long carrier diffusion length, it… read more here.
Keywords: double side; side photoelectrode; passivation; hydrogen ... See more keywords
Surface Reconstruction Engineering with Synergistic Effect of Mixed‐Salt Passivation Treatment toward Efficient and Stable Perovskite Solar Cells
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DOI: 10.1002/adfm.202102902
Abstract: Surface passivation treatment is a widely used strategy to resolve trap‐mediated nonradiative recombination toward high‐efficiency metal‐halide perovskite photovoltaics. However, a lack of passivation with mixture treatment has been investigated, as well as an in‐depth understanding… read more here.
Keywords: perovskite; mixed salt; surface; passivation ... See more keywords
Passivation of Black Phosphorus via Self-Assembled Organic Monolayers by van der Waals Epitaxy.
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DOI: 10.1002/adma.201603990
Abstract: An effective passivation approach to protect black phosphorus (BP) from degradation based on multi-scale simulations is proposed. The self-assembly of perylene-3,4,9,10-tetracarboxylic dianhydride monolayers via van der Waals epitaxy on BP does not break the original… read more here.
Keywords: van der; passivation; der waals; black phosphorus ... See more keywords
Recent Progress on Stability and Passivation of Black Phosphorus.
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DOI: 10.1002/adma.201704749
Abstract: From a fundamental science perspective, black phosphorus (BP) is a canonical example of a material that possesses fascinating surface and electronic properties. It has extraordinary in-plane anisotropic electrical, optical, and vibrational states, as well as… read more here.
Keywords: degradation; progress; passivation; surface ... See more keywords
Efficient Bifacial Passivation with Crosslinked Thioctic Acid for High-Performance Methylammonium Lead Iodide Perovskite Solar Cells.
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DOI: 10.1002/adma.201905661
Abstract: Defects, inevitably produced within bulk and at perovskite-transport layer interfaces (PTLIs), are detrimental to power conversion efficiency (PCE) and stability of perovskite solar cells (PSCs). It is demonstrated that a crosslinkable organic small molecule thioctic… read more here.
Keywords: passivation; perovskite solar; methylammonium lead; spectroscopy ... See more keywords
Effective Passivation with Self-Organized Molecules for Perovskite Photovoltaics.
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DOI: 10.1002/adma.202202100
Abstract: Perovskite solar cells (PSCs) have achieved power conversion efficiencies (PCEs) exceeding 25% over the past decade and effective passivation for the interface with high trap density plays a significant role in this process. Here, we… read more here.
Keywords: passivation; effective passivation; organized molecules; molecules perovskite ... See more keywords
Improved Silicon Surface Passivation by ALD Al 2 O 3 /SiO 2 Multilayers with In‐Situ Plasma Treatments
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DOI: 10.1002/admi.202202469
Abstract: Al2O3 is one of the most effective dielectric surface passivation layers for silicon solar cells, but recent studies indicate that there is still room for improvement. Instead of a single layer, multilayers of only a… read more here.
Keywords: silicon surface; plasma treatments; surface passivation; passivation ... See more keywords
Highly Efficient and Stable CsPbTh3 (Th = I, Br, Cl) Perovskite Solar Cells by Combinational Passivation Strategy
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DOI: 10.1002/advs.202105103
Abstract: Abstract The distorted lead iodide octahedra of all‐inorganic perovskite based on triple halide‐mixed CsPb(I2.85Br0.149Cl0.001) framework have made a tremendous breakthrough in its black phase stability and photovoltaic efficiency. However, their performance still suffers from severe… read more here.
Keywords: cspbth3; passivation; passivation strategy; combinational passivation ... See more keywords
Sodium Passivation of the Grain Boundaries in CuInSe2 and Cu2ZnSnS4 for High-Efficiency Solar Cells
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DOI: 10.1002/aenm.201601457
Abstract: It is well known that sodium at grain boundaries (GBs) increases the photovoltaic efficiencies of CuInSe2 and Cu2ZnSnS4 significantly. However, the mechanism of how sodium influences the GBs is still unknown. Based on the recently… read more here.
Keywords: passivation; dangling bonds; bonds gbs; grain boundaries ... See more keywords