来源：ACS PublicationsChemically flexible A2B2O7 oxides are attractive candidates for designing structure-specific functional materials by judicious substitution. However, modulating functionality by substitution is governed by the solubility limits of the substituent. Present work reports an a typical 10 mol % solubility of Y3+ in La2Ti2O7(LTO:10Y), substantially lower than 60 mol %, anticipated by cationic radius ratio guidelines (rA/rB) for A2B2O7. Systematic experimental and theoretical investigations have been performed to justify this limited solubility. The solubility of Y3+ in La2Ti2O7 wa...
Release time:
2026
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来源：ACS PublicationsRational design of Eu2+-activated red phosphors under visible light excitation remains a critical challenge in various fields such as photonics, optoelectronics, and white-light-emitting diodes. Herein, we engineer high density traps with a double metastable state in the SrZnOS matrix by constructing the reversible infinitesimal photoelectrochemical layered micro-unit battery structure via co-doping Eu2+ and Dy3+ ions for achieving robust red luminescence. The resulting SrZnOS:Eu2+,Dy3+ phosphor exhibits intense red photoluminescence at 620 nm under 468 nm excitation, matchi...
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2026
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07
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来源：ACS PublicationsPolaron formation has emerged as an important mechanism for unconventional luminescence in metal halide semiconductors. Here, we show that incomplete rare-earth-ion doping in the zero-dimensional hybrid halide (TMBA)2MnCl4 induces magnetic-polaron-mediated emission, rather than conventional local d-d or f-f transitions. Single-crystal structural analysis reveals that the compounds consist of isolated [MnCl4]2– tetrahedra separated by TMBA+ cations, forming a zero-dimensional framework. Upon rare-earth incorporation, Mn2+ ions retain tetrahedral coordination without the forma...
Release time:
2026
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来源：ACS PublicationsSuperconductor/ferromagnet heterostructures have been investigated extensively because of their capability to break superconducting electron pairs. In this study, we report on heterostructures of a superconductor and heavy-fermion system as an alternative platform for a strong pair-breaking proximity effect. We fabricated rocksalt-type CeO/LaO heteroepitaxial bilayers, where LaO is a superconductor and CeO is a nonferromagnetic heavy-fermion system. While LaO(9.5–21 nm) thin films showed superconductivity below 4.4–5.2 K, the CeO(4.8–5.8 nm)/LaO(9.2–17 nm) bilayers showed no...
Release time:
2026
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