Aqueous Zn-ion batteries (AZIBs) have been recognized as promising energy storage devices due to their high theoretical density and cost-effectiveness. However, side reactions Zn dendrite generation during cycling limit practical application. Herein, ammonium acetate (CH

The violent side reactions of Zn metal in aqueous electrolyte lead to sharp local-pH fluctuations at the interface, which accelerate anode breakdown; thus, development an optimization strategy accommodate a wide pH range is particularly critical for improving batteries. Herein, we report pH-adaptive electric double layer (EDL) tuned by glycine (Gly) additive with pH-dependent ionization, exhibits excellent capability stabilize anodes wide-pH electrolytes. It discovered that Gly-ionic EDL...

Abstract Flexible zinc‐ion batteries have garnered significant attention in the realm of wearable technology. However, instability hydrogel electrolytes a wide‐temperature range and uncontrollable side reactions Zn electrode become main problems for practical applications. Herein, N,N‐dimethylformamide (DMF) to design binary solvent (H 2 O‐DMF) is introduced combined it with polyacrylamide (PAM) ZnSO 4 synthesize electrolyte (denoted as PZD). The synergistic effect DMF PAM not only guides 2+...

Abstract The disappointing stability of perovskites, especially in water, remains a key issue hindering their further commercialization. Here, CsPbBr 3 /CsPb 2 Br 5 @PbBr(OH) (PQDs@PbBr(OH)) nano/microspheres with superior and outstanding photoluminescence quantum yield (PLQY, ≈98%) are fabricated through water‐assisted process. can maintain excellent (PL) intensity high PLQY (≈90%) when immersed water for more than 18 months. By changing the content reaction mixture, phase, particle size,...

Abstract Aqueous zinc (Zn) based batteries show great promise as energy storage devices, cost‐effectiveness, and intrinsic safety. However, the development of Zn‐based faces significant challenges, primarily stemming from poor electrochemical reversibility caused by dendrite growth, hydrogen generation, byproduct formation on Zn anode. In this study, valine (Val) is investigated an electrolyte additive to finely tune interface microenvironment, resulting in enhanced stability anode across a...

A zinc (Zn) metal anode paired with a vanadium oxide (VOx) cathode is promising system for aqueous Zn–ion batteries (AZIBs); however, side reactions proliferating on the Zn surface and infinite dissolution of VOx destabilise battery system. Here, we introduce multi‐functional additive into ZnSO4 (ZS) electrolyte, KAl(SO4)2 (KASO), to synchronise in‐situ construction protective layer cathode. Theoretical calculations synchrotron radiation have verified that high‐valence Al3+ plays...

Abstract Aqueous rechargeable batteries are safe and environmentally friendly can be made at a low cost; as such, they attracting attention in the field of energy storage. However, temperature sensitivity aqueous hinders their practical application. The solvent water freezes temperatures, there is reduction ionic conductivity, whereas it evaporates rapidly high which causes increased side reactions. This review discusses recent progress improving performance batteries, mainly with respect to...

Abstract The resource scarcity and pollution leakage risk caused by discarding the spent power lithium‐ion batteries has aroused growing concern. Recovering regenerating cathode material from in an easy environmentally friendly manner remains a significant challenge area of focus battery research. Hence, green convenient method to recover FePO 4 LiFePO powder using Na 2 S O 8 as oxidizer materials for lithium/sodium‐ion (LIBs/SIBs) is reported. Benefiting remarkable graphene oxide (GO)...

Abstract A zinc (Zn) metal anode paired with a vanadium oxide (VO x ) cathode is promising system for aqueous Zn–ion batteries (AZIBs); however, side reactions proliferating on the Zn surface and infinite dissolution of VO destabilise battery system. Here, we introduce multi‐functional additive into ZnSO 4 (ZS) electrolyte, KAl(SO 2 (KASO), to synchronise in situ construction protective layer cathode. Theoretical calculations synchrotron radiation have verified that high‐valence Al 3+ plays...

Slight modification of dye–TiO₂ interface structure induces significant changes in the photo-generated current density.

Abstract Rare‐earth (RE) doped zinc oxides (ZnO) are regarded as promising materials for application in versatile color‐tuned devices. However, the understanding of underlying luminescence mechanism and rule 4 f ‐related electronic transition is still limited, which full significance exploration advanced RE‐based ZnO phosphors. Thus, a series : RE (RE=Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb) phosphors have been investigated by means first‐principles calculations. Meanwhile, we also...

A series of D–[D_e–π–A]_n (<italic>n</italic> = 1, 2, 3) organic dyes have been theoretically investigated by means density functional theory (DFT) and time-dependent DFT (TD-DFT) approaches.

Development of novel organic-inorganic hybrid perovskite materials with long-term stability and excellent optoelectronic properties is the current focus field. High pressure, as a special thermodynamic parameter, offers promising avenue for discovering designing optimized performance. However, data-driven investigations on pressure-engineered structure-property relationships remain scarce, leading to an insufficient understanding physical rules by which pressure regulation influences...

Abstract The synthesis of flexible crystalline films for optoelectronic applications remains a significant chemical challenge due to the inherent contradiction between flexibility and crystallinity. delicate balance crystallinity has long constituted barrier development high-performance materials. Herein, an interface preassembly oriented growth (IPOG) strategy been explored fabricate covalent organic framework (COF) with controllable thickness. By synergistically modulating hydrophilic...

The types of electronic transitions in the lanthanide-activated CsPbBr₃:RE family.

The application of CsPbCl3 perovskite is limited by the low photoluminescence quantum yield (PLQY), weak luminescence, and unpromising stability. Doping impurity ions has been considered as an effective strategy to tune optoelectronic performances perovskite. In this work, heterovalent Ti3+ are successfully doped into nanocrystals. It found that ion doping could effectively improve (PL) performance Density functional theory (DFT) calculations reveal introduce more band-edge states around...

Reported here are some temperature-dependent and excitation-dependent photoluminescence (PL) results from chlorine-doped ZnSe layers grown by molecular beam epitaxy. The PL spectrum is characterized an overwhelming exciton recombination emission at 2.797 eV (10 K) near the band edge, no other features found. This neutral donor-bound (Cl0X) line with a full width half maximum (FWHM) of ∼13 meV reveals high crystalline quality samples. quick quenching this above 200 K due to presence...

Luminescence performance and photoisomerization control of sensitized energy transfer in a series Eu(acac)3De complexes that contain photochromic diarylethene (De) as the ligand are studied by theoretical methods. Both open-ring closed-ring isomers exhibit consistent coordination mode between EuIII ion De. An unneglected weak interaction originating from electrostatic attraction is found region coordinate bond Eu–N. The isomer has higher triplet levels than 5D1 5D0 ion, which facilitates...

Lead-free halide double perovskites Cs2BBiCl6 (B = Na, Ag) are potential alternatives in optoelectronic applications because of their nontoxicity and intrinsic stability. Intriguingly, the photoluminescence spectra cubic phases revealed that band gap evolution under pressure strongly depends on B-site metals. Our first-principles calculations demonstrate this distinct phenomenon is caused by orbital contributions cations (Na versus at edges. In contrast to Na Cs2NaBiCl6 whose 3s valence...

Rare-earth (RE) doped ternary sulfide (KLuS2) compounds, which serve as expected X-ray phosphors and white-light-emitting diode (LED) solid-sate lighting devices, have aroused intense interest recently. However, the underlying luminescence mechanism rule of 4f-related electronic transition are still unknown, full significance for exploration advanced RE-based luminescent materials. With these issues to be addressed in mind, a series KLuS2:RE (RE = Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm,...