Self-assembled monolayer
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Self-assembled monolayers in organic electronics Open
SAMs on electrodes, dielectrics, and semiconductors enhance the stability and the response of organic electronic devices and enable the design of new experiments and device layouts.
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Applications of Self‐Assembled Monolayers for Perovskite Solar Cells Interface Engineering to Address Efficiency and Stability Open
Due to a certified 25.2% high efficiency, low cost, and easy fabrication; perovskite solar cells (PSCs) are the focus of interest among the next‐generation photovoltaic technologies. Long‐term stability is one of the most challenging obsta…
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Chemical Modification of Semiconductor Surfaces for Molecular Electronics Open
Inserting molecular monolayers within metal/semiconductor interfaces provides one of the most powerful expressions of how minute chemical modifications can affect electronic devices. This topic also has direct importance for technology as …
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The role of self-assembled monolayers in electronic devices Open
Today, the self-assembled monolayer (SAM) approach for surface functionalization is regarded as highly versatile and compelling, especially in the immobilization of biomolecules and fabrication of novel supramolecular architectures.
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Enhanced Self-Assembled Monolayer Surface Coverage by ALD NiO in p-i-n Perovskite Solar Cells Open
Metal halide perovskites have attracted tremendous attention due to their excellent electronic properties. Recent advancements in device performance and stability of perovskite solar cells (PSCs) have been achieved with the application of …
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Co‐assembled Monolayers as Hole‐Selective Contact for High‐Performance Inverted Perovskite Solar Cells with Optimized Recombination Loss and Long‐Term Stability Open
Self‐assembled monolayers (SAMs) have been widely employed as an effective way to modify interfaces of electronic/optoelectronic devices. To achieve a good control of the growth and molecular functionality of SAMs, we develop a co‐assemble…
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Evaporated Self‐Assembled Monolayer Hole Transport Layers: Lossless Interfaces in <i>p‐i‐n</i> Perovskite Solar Cells Open
Engineering of the interface between perovskite absorber thin films and charge transport layers has fueled the development of perovskite solar cells (PSCs) over the past decade. For p‐i‐n PSCs, the development and adoption of hole transpor…
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Understanding Chemical versus Electrostatic Shifts in X-ray Photoelectron Spectra of Organic Self-Assembled Monolayers Open
The focus of the present article is on understanding the insight that X-ray photoelectron spectroscopy (XPS) measurements can provide when studying self-assembled monolayers. Comparing density functional theory calculations to experimental…
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Bottom-up growth of n-type monolayer molecular crystals on polymeric substrate for optoelectronic device applications Open
Self-assembly of monolayers of functional molecules on dielectric surfaces is a promising approach for the development of molecular devices proposed in the 1970s. Substrate chemically bonded self-assembled monolayers of semiconducting conj…
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Versatile Hole Selective Molecules Containing a Series of Heteroatoms as Self‐Assembled Monolayers for Efficient p‐i‐n Perovskite and Organic Solar Cells Open
Inverted type perovskite solar cells (PSCs) have recently emerged as a major focus in academic and industrial photovoltaic research. Their multiple advantages over conventional PSCs include easy processing, hysteresis‐free behavior, high s…
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<i>N</i>‐Heterocyclic Carbene Self‐assembled Monolayers on Copper and Gold: Dramatic Effect of Wingtip Groups on Binding, Orientation and Assembly Open
Self‐assembled monolayers of N ‐heterocyclic carbenes (NHCs) on copper are reported. The monolayer structure is highly dependent on the N , N ‐substituents on the NHC. On both Cu(111) and Au(111), bulky isopropyl substituents force the NHC…
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Molecular engineering of self-assembled monolayers for highly utilized Zn anodes Open
Stabilizing the Zn anode under high utilization rates is highly applauded yet very challenging in aqueous Zn batteries. Here, we rationally design a zincophilic short-chain aromatic molecule, 4-mercaptopyridine (4Mpy), to construct self-as…
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Self-Assembled 2D Free-Standing Janus Nanosheets with Single-Layer Thickness Open
We report the thermodynamically controlled growth of solution-processable and free-standing nanosheets via peptide assembly in two dimensions. By taking advantage of self-sorting between peptide β-strands and hydrocarbon chains, we have de…
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Advantages and challenges of self-assembled monolayer as a hole-selective contact for perovskite solar cells Open
Charge-transporting layers (CTLs) are important in determining the performance and stability of perovskite solar cells (PSCs). Recently, there has been considerable use of self-assembled monolayers (SAMs) as charge-selective contacts, espe…
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Molecular Electronics by Chemical Modification of Semiconductor Surfaces Open
Inserting molecular monolayers within metal / semiconductor interfaces provides one of the most powerful expressions of how minute chemical modifications can affect electronic devices. This topic also has direct importance for technology a…
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Alkanethiol Monolayer End Groups Affect the Long-Term Operational Stability and Signaling of Electrochemical, Aptamer-Based Sensors in Biological Fluids Open
Electrochemical aptamer-based (E-AB) sensors achieve highly precise measurements of specific molecular targets in untreated biological fluids. This unique ability, together with their measurement frequency of seconds or faster, has enabled…
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Surface Dipole Control of Liquid Crystal Alignment Open
Detailed understanding and control of the intermolecular forces that govern molecular assembly are necessary to engineer structure and function at the nanoscale. Liquid crystal (LC) assembly is exceptionally sensitive to surface properties…
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Tuning the structural and electronic properties and chemical activities of stanene monolayers by embedding 4d Pd: a DFT study Open
The structural, electronic and chemical activities of stanene monolayers can be effectively tuned by introducing Pd atoms.
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Surface Analysis of Gold Nanoparticles Functionalized with Thiol-Modified Glucose SAMs for Biosensor Applications Open
In this work, Time of Flight Secondary Ion Mass Spectrometry (ToF-SIMS), Principal Component Analysis (PCA) and X-ray Photoelectron Spectroscopy (XPS) have been used to characterize the surface chemistry of gold substrates before and after…
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Anchoring Charge Selective Self‐Assembled Monolayers for Tin–Lead Perovskite Solar Cells Open
Self‐assembled monolayers (SAMs) have displayed great potential for improving efficiency and stability in p–i–n perovskite solar cells (PSCs). The anchoring of SAMs at the conductiv metal oxide substrates and their interaction with perovsk…
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Characterizing Self-Assembled Monolayers on Gold Nanoparticles Open
A key aspect of nanoscience is to control the assembly of complex materials from a "bottom-up" approach. The self-assembly and self-organization of small ligands at the surface of nanoparticles represent a possible starting route for the p…
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Self‐assembled monolayers (SAMs) in inverted perovskite solar cells and their tandem photovoltaics application Open
Self‐assembled monolayers (SAMs) employed in inverted perovskite solar cells (PSCs) have achieved groundbreaking progress in device efficiency and stability for both single‐junction and tandem configurations, owing to their distinctive and…
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Self‐Assembled Monolayers as Patterning Tool for Organic Electronic Devices Open
The patterning of functional materials represents a crucial step for the implementation of organic semiconducting materials into functional devices. Classical patterning techniques such as photolithography or shadow masking exhibit certain…
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Mixed Monolayers of Spiropyrans Maximize Tunneling Conductance Switching by Photoisomerization at the Molecule–Electrode Interface in EGaIn Junctions Open
This paper describes the photoinduced switching of conductance in tunneling junctions comprising self-assembled monolayers of a spiropyran moiety using eutectic Ga-In top contacts. Despite separation of the spiropyran unit from the electro…
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Embedded Dipole Self‐Assembled Monolayers for Contact Resistance Tuning in p‐Type and n‐Type Organic Thin Film Transistors and Flexible Electronic Circuits Open
Based on the powerful concept of embedded dipole self‐assembled monolayers (SAMs), highly conductive interfacial layers are designed, which allow tuning the contact resistance of organic thin‐film transistors over three orders of magnitude…
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Gas‐Assisted Spray Coating of Perovskite Solar Cells Incorporating Sprayed Self‐Assembled Monolayers Open
Self‐assembled monolayers (SAMs) are becoming widely utilized as hole‐selective layers in high‐performance p‐i‐n architecture perovskite solar cells. Ultrasonic spray coating and airbrush coating are demonstrated here as effective methods …
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Ion‐Dipole Interaction for Self‐Assembled Monolayers: A New Strategy for Buried Interface in Inverted Perovskite Solar Cells Open
Nickel oxide (NiO X ) has a crucial role in enhancing the efficiency and stability of p‐i‐n inverted perovskite solar cells (PSCs), which hold great potential for commercialization. However, improving contact passivation between perovskite…
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Label-Free and Selective Single-Molecule Bioelectronic Sensing with a Millimeter-Wide Self-Assembled Monolayer of Anti-Immunoglobulins Open
Immunoglobulin M (IgM) single-molecule and label-free detection is demonstrated, for the first time, by means of an electrolyte-gated thin-film transistor. The sensor integrates a millimeter-wide self-assembled monolayer (SAM) that include…
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Control of Molecular Bonding Strength on Metal Catalysts with Organic Monolayers for CO<sub>2</sub> Reduction Open
The development of separate levers for controlling the bonding strength of different reactive species on catalyst surfaces is challenging but essential for the design of highly active and selective catalysts. For example, during CO2 reduct…
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Tuning the Surface Energy of Hole Transport Layers Based on Carbazole Self‐Assembled Monolayers for Highly Efficient Sn/Pb Perovskite Solar Cells Open
Recently, carbazole‐based self‐assembled monolayers (SAMs) have been utilized as hole transport layers (HTLs) in perovskite solar cells. However, their application in Sn or mixed Sn/Pb perovskite solar cells has been hindered by the poor w…