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Recent advances in III-nitride heterostructures continue to push the boundaries of high-frequency and high-power device performance. A new study, “Demonstrating the Effects of Growth Temperatures of Al(In)GaN Back Barrier on Transport Properties of InAlGaN/GaN Heterostructures,” takes a close look at how carefully tuning growth conditions can directly shape electronic behavior at the nanoscale.

In this article, the authors—Hoang-Tan-Ngoc Nguyen, Rahul Rai, Quoc-Huy Nguyen, Quoc Viet Hoang, Ngoc Quang Huy Dinh, Chan-Yuen Chang, Chien-Wei Chen, You-Chen Weng, Hao-Chung Kuo, Ching-Ting Lee, and Edward-Yi Chang—investigate how the growth temperature of an Al(In)GaN back barrier fabricated using metal-organic chemical vapor deposition (MOCVD) influences the structure and performance of InAlGaN/GaN heterostructures. By minimizing the temperature gap between the channel and back barrier layers, the researchers achieved highly coherent growth with smooth surfaces, sharp interfaces, and no detectable threading dislocations. These structural improvements translated into measurable performance gains: higher electron mobility, reduced sheet carrier density, and stronger electron confinement. (more…)

All-solid-state batteries are widely viewed as a next-generation solution for safer and higher energy storage. But translating promising materials from the lab to large-scale manufacturing depends on more than performance alone—it also requires compatibility with real-world production environments.

A new open-access article in the Journal of The Electrochemical Society examines how chloride-based solid-state electrolytes behave when exposed to dry room conditions commonly used in battery manufacturing. The study focuses on practical considerations that matter for scalability, offering valuable insight into how these materials respond outside ideal laboratory settings.  (more…)

ECS Advances is pleased to highlight a recent article that makes an important contribution to the understanding of high-temperature electrochemical processes: “Evaluating Platinum, Gold, Glassy Carbon, and Graphite Anodes for Chlorine Evolution in Molten Calcium Chloride Salt.” Authored by Cameron Vann, Shelssie Klvacek, Carlos Mejia,  and Devin Rappleye, this work provides timely and practical insights into materials selection for chlorine evolution under extreme conditions.

The chlorine evolution reaction (CER) in molten calcium chloride (CaCl₂) carries several critical technologies, including chlorination, metal refining, rare earth processing, and the treatment and purification of used nuclear fuel. Despite its importance, long-term anode stability and performance in molten salt environments remain persistent challenges. This study directly addresses those challenges through a systematic comparison of four commonly considered anode materials: platinum, gold, glassy carbon, and graphite. (more…)

Volatile fatty acids (VFAs) from biomass fermentation offer a sustainable alternative to petroleum-based chemicals, serving as building blocks for bioplastics, pharmaceuticals, and more. However, separating and purifying these acids from fermentation broths remains technically challenging.

A new study in the Journal of The Electrochemical Society, selected as an Editors’ Choice article, addresses this bottleneck. Researchers Riccardo Candeago, Nidhish Lella, Wangsuk Oh, Ping Liu, and Xiao Su developed a physics-based model of redox-mediated (more…)

We are pleased to spotlight a publication from the ECS Journal of Solid State Science and Technology (JSS):

“Low-Damage Atomic Layer Etching for Contact Resistance Reduction in Millimeter Wave AlGaN/GaN HEMTs on Si” (DOI: 10.1149/2162-8777/ae1ced) by Hsuan-Yao Huang et al. (2025) —available fully open access.

In this work, the authors address one of the key bottlenecks for high-frequency GaN electronics: ohmic contact resistance and accompanying device damage in high-electron-mobility transistors (HEMTs) built on Si substrates. Conventional etching methods for the ohmic-recess process often introduce plasma-induced damage, rough surfaces, and degraded channel performance. (more…)

ECS Sensors Plus is pleased to highlight a recent contribution that showcases the power of material innovation in enhancing electrochemical sensing technologies. In their new article, “Application of a g-C₃N₄@nZVI/CNTs Modified Carbon Paste Electrode for Uric Acid Detection in Spiked Urine Samples,” Aya A. Mouhamed, Ola G. Hussein, Maria Osama Mekhail, Tony Victor Zaki, Amr M. Mahmoud, and Jeffrey G. Bell present a promising approach for accurate, sensitive uric acid detection.

The research team developed a carbon paste electrode modified with a uniquely engineered g-C₃N₄@nZVI/CNT nanocomposite. By combining graphitic carbon nitride’s high surface area, nano zero-valent iron’s catalytic activity, and carbon nanotubes’ conductivity, the authors created a synergistic platform capable of boosting electron transfer and improving analytical performance. (more…)

The Electrochemical Society (ECS) invites nominations for two Associate Editor positions for ECS Advances, the Society’s multidisciplinary gold open access journal.

ECS seeks candidates with expertise aligned with the journal’s broad topical scope, which spans the full breadth of electrochemical and solid state science and technology. Ideal nominees are respected leaders in their fields with demonstrated excellence in scholarly publishing and a commitment to advancing the mission and integrity of ECS journals.

Expertise in emerging aspects of industrial electrochemistry and electrochemical and solid-state technologies, including but not limited to the use of artificial intelligence tools, techno-economics and life-cycle assessments, advanced electrochemical measurements, etc. is preferred but not required. Expertise in all ECS topical interest areas will be considered. (more…)