Reviews & Analysis

Memristive devices are emerging within the semiconductor industry. Solution-processed memristors present alternatives for flexible, transparent and low-cost applications. This Perspective reviews solution-processed memristors focusing on the reliability of their electrical performance, aiming to increase impact and technology readiness.

Interlayer hybridization in van der Waals stacks is key to understanding their physical properties. This Perspective article discusses the various parameters influencing interlayer hybridization and how they can be controlled, providing a comprehensive guide for designing materials with desired properties.

Solid-state lithium metal batteries have the potential to meet energy density and safety requirements that current commercial Li-ion batteries cannot. Given their solid-state components, these batteries are subject to — and strongly affected by — external pressure during their manufacturing and operation. This Review examines the relationship between external pressure and electrochemical behaviour in these batteries.

High-entropy materials (HEMs) are characterized by their high configurational entropy, providing unique property-tuning capabilities for a variety of applications. This Perspective discusses the potential of HEMs for applications in energy storage, energy conversion and electronics.

Cost and performance analysis, if applied properly, can guide the research of new energy storage materials. In three case studies on sodium-ion batteries, this Perspective illustrates how to implement this type of analysis at the battery material discovery phase to identify the most promising active materials and treatments.

The organic electrochemical transistor (OECT), with its organic mixed ionic–electronic conductor (OMIEC) channel, serves as an amplifying transducer of biological signals. This Review highlights OMIEC design milestones and illustrates how incorporating specific properties into OMIECs can extend OECT applications beyond biosensing.

Flat-band materials such as kagome and moiré lattices and strongly correlated electron systems including heavy-fermion compounds exhibit strikingly similar phenomena of topology and strong correlations. This Perspective article discusses Kondo physics as the underlying theme and a route to a unified understanding.

Taking inspiration from the success of organic light-emitting diodes (LEDs), vapour deposition holds promises for bringing perovskite LEDs closer to commercialization. This Perspective article highlights the main bottlenecks and challenges towards high-efficiency vapour-deposited perovskite LEDs, as well as the prospects on the route towards commercial displays.

Current interest in furthering space exploration is undoubtedly relevant to materials science research. However, as we stand on the brink of a revolution, it is imperative to establish robust frameworks to foster sustainable growth. In this Viewpoint, experts in space policy, environmental stewardship and ethics reflect on issues from space debris management to international collaboration and exploitation of extraterrestrial resources.

Microscale robots have unique advantages for biomedical and environmental applications. This Review discusses materials considerations to enable the propulsion and motion control of these microrobots, as well as their fabrication and potential applications.

For more than two decades, the crystallization of various (bio)molecules and materials have been found to be non-classical and to generate unique crystal structures and morphologies. This Review discusses the non-classical crystallization pathways discovered in soft and organic materials and identifies challenges and opportunities in understanding, designing and synthesizing such structures.

Peptides and nucleic acids inspired the creation of synthetic analogues that fold and assemble on demand. By contrast, programmable glycan architectures remain mostly unexplored. In this Perspective, the authors propose that advances in synthesis and analysis could fuel the use of well-defined glycans in materials science and supramolecular chemistry.

Moisture-sorption-based energy harvesting (MSEH) is a promising strategy for obtaining heat, cold and electricity from ubiquitous moisture anywhere and anytime. This Perspective article discusses the thermodynamic characteristics of MSEH, evaluates global energy production potential and highlights challenges and strategies for realizing high-energy-productivity MSEH.

Multijunction solar cells can overcome the fundamental efficiency limits of single-junction devices. This Perspective article highlights tandem solar cells based on a wide-gap perovskite and a narrow-gap organic subcell, which could achieve efficiencies beyond 30% and can be produced without large carbon emissions.

Single-atom catalysts benefit from metal–support interactions that enable the support to be directly involved in the reaction, accelerating specific mechanistic steps to obtain unique electrocatalytic properties. This Review discusses state-of-the-art techniques for synthesizing active co-catalytic single-atom structures and explores the design strategies that enhance their catalytic performance.

Immunotherapy represents an important advance in cancer treatment, yet faces challenges owing to lack of precise control, leading to systemic effects and suboptimal results for patients. This Review explores how responsive biomaterials can enhance cancer immunotherapies by responding to various internal and external stimuli to regulate the delivery and behaviour of therapeutic agents, thereby improving efficacy and reducing toxicity in treatment methods such as cancer vaccines, T cell-based therapies and sustained delivery systems.

Current technologies of bioinspired and neuromorphic electronics still lack a universal framework for integration into everyday life. This Perspective highlights how bioinspired electronics with soft electrochemical matter based on organic mixed conductors can potentially enable the integration of diverse forms of intelligence everywhere.

Incorporating in the curriculum active learning and project-based teaching, assuming minimal prior knowledge and emphasizing the real-world relevance of the covered topics result in better learning outcomes and help engage a more diverse group of students. In this Viewpoint, five educators who have been involved in reimagining undergraduate teaching in materials science and engineering share their insights and perspective.

Mucosal vaccines are critical in the fight against mucosal pathogens because they enable the immune system to directly neutralize these pathogens at their primary site of entry. This Review examines the role of material design in addressing the challenges associated with mucosal vaccine delivery.

Ultra-high temperature ceramics (UHTCs), with their exceptionally high melting points and outstanding thermomechanical behaviour, are critical materials for extreme environment technologies. This Review establishes the key UHTC composition–synthesis–property relations and discusses the design of UHTCs for application in extreme environments.