Alexander X. Chen
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View article: Quantifying the Effect of Intermonomer Improper Angles on Electron Delocalization in Conjugated Polymers
Quantifying the Effect of Intermonomer Improper Angles on Electron Delocalization in Conjugated Polymers Open
Electron delocalization between monomers in conjugated polymers influences both the charge transport and the mechanical properties of this class of materials. While this delocalization is generally understood to be maximized by coplanar mo…
View article: Surface‐Grafted Biocompatible Polymer Conductors for Stable and Compliant Electrodes for Brain Interfaces
Surface‐Grafted Biocompatible Polymer Conductors for Stable and Compliant Electrodes for Brain Interfaces Open
Durable and conductive interfaces that enable chronic and high‐resolution recording of neural activity are essential for understanding and treating neurodegenerative disorders. These chronic implants require long‐term stability and small c…
View article: Silver-free intrinsically conductive adhesives for shingled solar cells
Silver-free intrinsically conductive adhesives for shingled solar cells Open
Achieving a net-zero emissions economy by 2050 requires immediate and accelerated growth of solar photovoltaics within the next decade. However, the projected silver consumption needed for this growth is unsustainable. Here, we use poly(3,…
View article: Tailoring Molecular‐Scale Contact at the Perovskite/Polymeric Hole‐Transporting Material Interface for Efficient Solar Cells
Tailoring Molecular‐Scale Contact at the Perovskite/Polymeric Hole‐Transporting Material Interface for Efficient Solar Cells Open
Perovskite solar cells (PSCs) have delivered a power conversion efficiency (PCE) of more than 25% and incorporating polymers as hole‐transporting layers (HTLs) can further enhance the stability of devices toward the goal of commercializati…
View article: External Measurement of Swallowed Volume During Exercise Enabled by Stretchable Derivatives of PEDOT:PSS, Graphene, Metallic Nanoparticles, and Machine Learning
External Measurement of Swallowed Volume During Exercise Enabled by Stretchable Derivatives of PEDOT:PSS, Graphene, Metallic Nanoparticles, and Machine Learning Open
Epidermal sensors for remote healthcare and performance monitoring require the ability to operate under the effects of bodily motion, heat, and perspiration. Here, the use of purpose‐synthesized polymer‐based dry electrodes and graphene‐ba…
View article: A 5 V-class cobalt-free battery cathode with high loading enabled by dry coating
A 5 V-class cobalt-free battery cathode with high loading enabled by dry coating Open
“Thick electrode using high voltage cathode” can be considered, since this research focuses on high voltage cathode materials.
View article: A 5V-class Cobalt-free Battery Cathode with High Loading Enabled by Dry Coating
A 5V-class Cobalt-free Battery Cathode with High Loading Enabled by Dry Coating Open
Transitioning toward more sustainable materials and manufacturing methods will be critical to continue supporting the rapidly expanding market for lithium-ion batteries. Meanwhile, energy storage applications are demanding higher power and…
View article: Increasing the Strength, Hardness, and Survivability of Semiconducting Polymers by Crosslinking
Increasing the Strength, Hardness, and Survivability of Semiconducting Polymers by Crosslinking Open
Crosslinking is a ubiquitous strategy in polymer engineering to increase the thermomechanical robustness of solid polymers but has been relatively unexplored in the context of π‐conjugated (semiconducting) polymers. Notwithstanding, mechan…
View article: Comparison of the Mechanical Properties of a Conjugated Polymer Deposited Using Spin Coating, Interfacial Spreading, Solution Shearing, and Spray Coating
Comparison of the Mechanical Properties of a Conjugated Polymer Deposited Using Spin Coating, Interfacial Spreading, Solution Shearing, and Spray Coating Open
The mechanical properties of π-conjugated (semiconducting) polymers are a key determinant of the stability and manufacturability of devices envisioned for applications in energy and healthcare. These properties─including modulus, extensibi…