Zhengxing Peng
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View article: Operando probing dynamic migration of copper carbonyl during electrocatalytic CO2 reduction
Operando probing dynamic migration of copper carbonyl during electrocatalytic CO2 reduction Open
Single crystals and shape-controlled nanocrystals are well known to exhibit facet-dependent catalytic properties. However, few studies have investigated how those nanocrystals evolve and (de)activate during reactions, calling for the devel…
View article: C-H Functionalization of Polyolefins to Access Reprocessable Polyolefin Thermosets
C-H Functionalization of Polyolefins to Access Reprocessable Polyolefin Thermosets Open
Upcycling plastic waste into reprocessable materials with performance-advantaged properties would contribute to the development of a circular plastics economy. Here, we modify branched polyolefins and postconsumer polyethylene through a ve…
View article: Characterization of latent image of electron beam resist via critical-dimension resonant soft X-ray scattering
Characterization of latent image of electron beam resist via critical-dimension resonant soft X-ray scattering Open
Metrology plays a crucial role in semiconductor manufacturing by providing accurate and precise measurement and characterization of critical parameters. With the development of high-resolution extreme ultraviolet lithography (EUVL) process…
View article: Operando Ultrafast Damage-free Diffraction-Enhanced X-ray Absorption Spectroscopy for Chemical Reactivity of Polymer in Solvents
Operando Ultrafast Damage-free Diffraction-Enhanced X-ray Absorption Spectroscopy for Chemical Reactivity of Polymer in Solvents Open
Chemical recycling of plastics to its constituent monomers is a promising solution to develop a sustainable circular plastic economy. An in-situ X-ray absorption spectra (XAS) characterization is an important way to understand the deconstr…
View article: Mechanochemically accelerated deconstruction of chemically recyclable plastics
Mechanochemically accelerated deconstruction of chemically recyclable plastics Open
Plastics redesign for circularity has primarily focused on monomer chemistries enabling faster deconstruction rates concomitant with high monomer yields. Yet, during deconstruction, polymer chains interact with their reaction medium, which…
View article: Editorial: Multifunctional, flexible, polymeric materials with controlled nanostructures
Editorial: Multifunctional, flexible, polymeric materials with controlled nanostructures Open
Keywords: polymeric materials, composites, multifunctional, structure-properties correlations, nanostructures
View article: Into the Void: Cavities and Tunnels are Essential for Functional Protein Design
Into the Void: Cavities and Tunnels are Essential for Functional Protein Design Open
The design of functional proteins is crucial as it enables the creation of tailored proteins with specific capabilities, unlocking the potential solutions to various biomedical and industrial challenges. The exact relationship between stru…
View article: Synergistic control of multilength-scale morphology and vertical phase separation for high-efficiency organic solar cells
Synergistic control of multilength-scale morphology and vertical phase separation for high-efficiency organic solar cells Open
Controlling the morphology of organic solar cells (OSCs) presents a significant challenge due to their complex structure and composition.
View article: Mechanochemically Accelerated Deconstruction of Chemically Recyclable Plastics
Mechanochemically Accelerated Deconstruction of Chemically Recyclable Plastics Open
Here, we show that when polymers are deconstructed as solids in a reaction medium that swells the polymer, the rate of chain cleavage is accelerated beyond that for bond cleavage in small molecule analogues. Moreover, by tailoring the reac…
View article: C–H Functionalization of Polyolefins to Access Reprocessable Polyolefin Thermosets
C–H Functionalization of Polyolefins to Access Reprocessable Polyolefin Thermosets Open
Upcycling plastic waste into reprocessable materials with performance-advantaged properties would contribute to the development of a circular plastics economy. Here, we modify branched polyolefins and postconsumer polyethylene through a ve…
View article: Molecular interactions that drive morphological and mechanical stabilities in organic solar cells
Molecular interactions that drive morphological and mechanical stabilities in organic solar cells Open
View article: Additive-free molecular acceptor organic solar cells processed from a biorenewable solvent approaching 15% efficiency
Additive-free molecular acceptor organic solar cells processed from a biorenewable solvent approaching 15% efficiency Open
We report on the use of molecular acceptors and donor polymers processed with a biomass-derived solvent 2-methyltetrahydrofuran to facilitate bulk heterojunction organic photovoltaics with power conversion efficiency approaching 15%.
View article: Tethered Small‐Molecule Acceptors Simultaneously Enhance the Efficiency and Stability of Polymer Solar Cells
Tethered Small‐Molecule Acceptors Simultaneously Enhance the Efficiency and Stability of Polymer Solar Cells Open
For polymer solar cells (PSCs), the mixture of polymer donors and small‐molecule acceptors (SMAs) is fine‐tuned to realize a favorable kinetically trapped morphology and thus a commercially viable device efficiency. However, the thermodyna…
View article: Suppressed recombination loss in organic photovoltaics adopting a planar–mixed heterojunction architecture
Suppressed recombination loss in organic photovoltaics adopting a planar–mixed heterojunction architecture Open
View article: CCDC 2084244: Experimental Crystal Structure Determination
CCDC 2084244: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 2081902: Experimental Crystal Structure Determination
CCDC 2081902: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 2081901: Experimental Crystal Structure Determination
CCDC 2081901: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 2056897: Experimental Crystal Structure Determination
CCDC 2056897: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 2149573: Experimental Crystal Structure Determination
CCDC 2149573: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: A Top‐Down Strategy to Engineer ActiveLayer Morphology for Highly Efficient and Stable All‐Polymer Solar Cells
A Top‐Down Strategy to Engineer ActiveLayer Morphology for Highly Efficient and Stable All‐Polymer Solar Cells Open
A major challenge hindering the further development of all‐polymer solar cells (all‐PSCs) employing polymerized small‐molecule acceptors is the relatively low fill factor (FF) due to the difficulty in controlling the active‐layer morpholog…
View article: Suppressed Recombination Loss in Organic Photovoltaics Adopting a Planar-mixed Heterojunction Architecture
Suppressed Recombination Loss in Organic Photovoltaics Adopting a Planar-mixed Heterojunction Architecture Open
CIF files of non-fullerene acceptors.
View article: Understanding, quantifying, and controlling the molecular ordering of semiconducting polymers: from novices to experts and amorphous to perfect crystals
Understanding, quantifying, and controlling the molecular ordering of semiconducting polymers: from novices to experts and amorphous to perfect crystals Open
Molecular packing of semiconducting polymers is often critical to the performance of devices using these materials. The degree and quality of ordering are revealed by grazing-incidence wide-angle X-ray scattering and thermal analysis.
View article: Baseplate Temperature‐Dependent Vertical Composition Gradient in Pseudo‐Bilayer Films for Printing Non‐Fullerene Organic Solar Cells
Baseplate Temperature‐Dependent Vertical Composition Gradient in Pseudo‐Bilayer Films for Printing Non‐Fullerene Organic Solar Cells Open
Numerous previous reports on the sequential deposition (SD) technique have demonstrated that this approach can achieve a p‐ i ‐n active layer architecture with an ideal vertical composition gradient, which is one of the critical factors th…
View article: The performance-stability conundrum of BTP-based organic solar cells
The performance-stability conundrum of BTP-based organic solar cells Open
View article: Insights into Bulk‐Heterojunction Organic Solar Cells Processed from Green Solvent
Insights into Bulk‐Heterojunction Organic Solar Cells Processed from Green Solvent Open
The environmental impact of solution processed organic solar cells (OSCs) can be mitigated by introducing so‐called green solvents during the fabrication processes. However, the effects of such green solvents on the molecular‐level structu…
View article: A Difluoro‐Monobromo End Group Enables High‐Performance Polymer Acceptor and Efficient All‐Polymer Solar Cells Processable with Green Solvent under Ambient Condition
A Difluoro‐Monobromo End Group Enables High‐Performance Polymer Acceptor and Efficient All‐Polymer Solar Cells Processable with Green Solvent under Ambient Condition Open
In this paper, a difluoro‐monobromo end group is designed and synthesized, which is then used to construct a novel polymer acceptor (named PY2F‐T) yielding high‐performance all‐polymer solar cells with 15.22% efficiency. The fluorination s…
View article: Effect of Palladium‐Tetrakis(Triphenylphosphine) Catalyst Traces on Charge Recombination and Extraction in Non‐Fullerene‐based Organic Solar Cells
Effect of Palladium‐Tetrakis(Triphenylphosphine) Catalyst Traces on Charge Recombination and Extraction in Non‐Fullerene‐based Organic Solar Cells Open
The effect of the cross‐coupling catalyst tetrakis(triphenylphosphine)palladium(0) (Pd(PPh 3 ) 4 ) on the performance of a model organic bulk‐heterojunction solar cell composed of a blend of poly([2,6′‐4,8‐di(5‐ethylhexylthienyl)benzo[1,2‐…
View article: Pseudo-bilayer architecture enables high-performance organic solar cells with enhanced exciton diffusion length
Pseudo-bilayer architecture enables high-performance organic solar cells with enhanced exciton diffusion length Open
View article: Asymmetric Alkoxy and Alkyl Substitution on Nonfullerene Acceptors Enabling High‐Performance Organic Solar Cells
Asymmetric Alkoxy and Alkyl Substitution on Nonfullerene Acceptors Enabling High‐Performance Organic Solar Cells Open
In this paper, a strategy of asymmetric alkyl and alkoxy substitution is applied to state‐of‐the‐art Y‐series nonfullerene acceptors (NFAs), and it achieves great performance in organic solar cell (OSC) devices. Since alkoxy groups can hav…
View article: Random Polymerization Strategy Leads to a Family of Donor Polymers Enabling Well‐Controlled Morphology and Multiple Cases of High‐Performance Organic Solar Cells
Random Polymerization Strategy Leads to a Family of Donor Polymers Enabling Well‐Controlled Morphology and Multiple Cases of High‐Performance Organic Solar Cells Open
Developing high‐performance donor polymers is important for nonfullerene organic solar cells (NF‐OSCs), as state‐of‐the‐art nonfullerene acceptors can only perform well if they are coupled with a matching donor with suitable energy levels.…