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High‐Energy SWCNT Cathode for Aqueous Al‐Ion Battery Boosted by Multi‐Ion Intercalation Chemistry (Adv. Energy Mater. 39/2021)

Aqueous Al-Ion Batteries In article number 2101514, Xinhua Liu, Dennis Y. C. Leung, and co-workers propose a high-performance aqueous Al-ion battery with a SWCNT cathode and an aluminum foil anode. A water-in-salt electrolyte is used to provide multiple electrochemical species so that AlCl4 − ions can be extracted and Al3+ ions can be inserted from/into...

Pt‐Induced Defects Curing on BiVO4 Photoanodes for Near‐Threshold Charge Separation

Herein, oxygen-deficiency conditions are applied to tune and activate BiVO4 photoanodes with a class of oxygen vacancies across the whole bulk material, and regulate the electronic occupancy of these states upon the charge carrier processes that determine photoelectrochemical (PEC) water oxidation activity. The material is doped with Pt, which further...

Orders of Recombination in Complete Perovskite Solar Cells – Linking Time‐Resolved and Steady‐State Measurements

To enhance the photovoltaic performances of perovskite solar cells, an in-depth understanding of recombination processes in full devices is necessary. To gain this insight, transient opto-electronic measurements are applied, revealing that in full devices a superposition of first-, second-, and third-order recombination fully describes the recombination...

Multimodal Approach towards Large Area Fully Semitransparent Perovskite Solar Module

A fully semitransparent large area module is optimally designed by investigation in three major directions. First is the effect of Europium in semitransparent perovskite film for improved stability. Second is a top transparent indium tin oxide contact engineered for delamination free and colorful asthetics for window applications. Third is the UV protection...

Atomic Heterointerface Boosts the Catalytic Activity toward Oxygen Reduction/Evolution Reaction

Hybrid cathode catalysts consisting of Pd arrays decorated NiO thin films with atomic heterointerface are synthesized as Janus catalysts for the oxygen reduction/evolution reaction. Well patterned Pd arrays are imbedded into NiO thin films to improve the conductivity, stability and intermediates adsorption. Such bifunctional catalysts exhibit outstanding...

In Situ Infrared Micro and Nanospectroscopy for Discharge Chemical Composition Investigation of Non‐Aqueous Lithium–Air Cells

For the first time, multi-scale FTIR (micro-nano) is used to investigate Li–Air battery discharge product formation under a real atmosphere (CO2 + O2 + H2O). A triple-phase zone analysis reveals the same products in both scales despite a significant difference in the discharge rate. Also, after only 140 s of discharge, electrolyte decomposition is shown...

Simple Nonfused Ring Electron Acceptors with 3D Network Packing Structure Boosting the Efficiency of Organic Solar Cells to 15.44%

Three nonfused ring electron acceptors (NFREAs) with different π-conjugation length are designed and synthesized. The π-conjugation length can significantly influence the molar extinction coefficient and the electron mobility. The first 3D network packing is observed for 2BTh-2F. 2BTh-2F derivative based organic solar cells give a high power conversion...

Reversible and Fast (De)fluorination of High‐Capacity Cu2O Cathode: One Step Toward Practically Applicable All‐Solid‐State Fluoride‐Ion Battery

The all-solid-state fluoride-ion battery (FIB) is regarded as one of promising candidates for next-generation batteries. The high rate capability and high capacity of the Cu2O cathode material offer new possibilities for practical applications of all-solid-state FIBs, considering the low-cost, highly commercialized, and chemical stable characteristics...

Baseplate Temperature‐Dependent Vertical Composition Gradient in Pseudo‐Bilayer Films for Printing Non‐Fullerene Organic Solar Cells

The baseplate temperature-dependent blend morphology of sequential deposition-processed organic solar cells at vertical and lateral scales is systematically studied, and the temperature-microstructure-performance relationship is established. Abstract Numerous previous reports on the sequential deposition (SD) technique have demonstrated that...

Atomic Heterointerface Boosts the Catalytic Activity toward Oxygen Reduction/Evolution Reaction

Hybrid cathode catalysts consisting of Pd arrays decorated NiO thin films with atomic heterointerface are synthesized as Janus catalysts for the oxygen reduction/evolution reaction. Well patterned Pd arrays are imbedded into NiO thin films to improve the conductivity, stability and intermediates adsorption. Such bifunctional catalysts exhibit outstanding...

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