A Polar Tetragonal Tungsten Bronze with Colossal Second‐Harmonic Generation [PDF]
Advanced Science, 2023 A polar tetragonal tungsten bronze, Pb1.91K3.22□0.85Li2.96Nb10O30 (□: vacancies), has been successfully synthesized by a high temperature solid‐state reaction. Single crystal and powder X‐ray diffraction indicate that the structure of Pb1.91K3.22□0.85Li2.
Yunseung Kuk +3 more
doaj +4 more sources
Optimizing high-temperature energy storage in tungsten bronze-structured ceramics via high-entropy strategy and bandgap engineering [PDF]
Nature CommunicationsAs a vital material utilized in energy storage capacitors, dielectric ceramics have widespread applications in high-power pulse devices. However, the development of dielectric ceramics with both high energy density and efficiency at high temperatures ...
Yangfei Gao +11 more
doaj +3 more sources
Characterization of K6Ta10.8O30 Microrods with Tetragonal Tungsten Bronze-Like Structure Obtained from Tailings from the Penouta Sn-Ta-Nb Deposit [PDF]
Nanomaterials, 2020 In this work, a deep characterization of the properties of K6Ta10.8O30 microrods has been performed. The starting material used to grow the microrods has been recovered from mining tailings coming from the Penouta Sn-Ta-Nb deposit, located in the north ...
Belén Sotillo +3 more
doaj +2 more sources
Ferroelectric tungsten bronze-based ceramics with high-energy storage performance via weakly coupled relaxor design and grain boundary optimization [PDF]
Nature CommunicationsA multiscale regulation strategy has been demonstrated for synthetic energy storage enhancement in a tetragonal tungsten bronze structure ferroelectric.
Jiaming Liu +9 more
doaj +2 more sources
Superior disrupting ferroelectric phase of (Ba Sr)Nb2O6 tungsten bronze structure via high entropy and cations disorder for ultrahigh breakdown strength [PDF]
Scientific ReportsHigh configurational entropy (ΔS) dielectric ceramics possess a unique competitive advantage in electronic applications due to their high-power density and excellent reliability.
Marwa Kamal +2 more
doaj +2 more sources
High-entropy relaxor ferroelectric ceramics for ultrahigh energy storage [PDF]
Nature CommunicationsDielectric ceramic capacitors with ultrahigh power densities are fundamental to modern electrical devices. Nonetheless, the poor energy density confined to the low breakdown strength is a long-standing bottleneck in developing desirable dielectric ...
Haonan Peng +8 more
doaj +2 more sources
Superior Energy Density Achieved in Unfilled Tungsten Bronze Ferroelectrics via Multiscale Regulation Strategy [PDF]
Advanced Science, 2023 The most promising candidates for energy storage capacitor application are relaxor ferroelectrics, among which, the perovskite structure ferroelectric ceramics have witnessed great development progress. However, less attention has been paid on tetragonal
Haonan Peng +8 more
doaj +2 more sources
Defect-engineered black tetragonal-tungsten-bronze ferroelectric crystal for full spectrum absorption and broadband photoelectronic conversion [PDF]
Nature CommunicationsFerroelectric crystals have emerged as promising candidates for exotic optoelectronic platforms. However, the wide bandgaps of transparent ferroelectric crystals restrict their ultraviolet optical activity, hindering broadband photoelectric conversion ...
Yaqian Wang +9 more
doaj +2 more sources
Structural origins of dielectric anomalies in the filled tetragonal tungsten bronze Sr2NaNb5O15
Communications MaterialsThe tetragonal tungsten bronze, Sr2NaNb5O15, shows promise for application in high-temperature high-efficiency capacitors vital for the sustainable energy revolution.
Jeremiah P. Tidey +9 more
doaj +3 more sources
Chap. 26 - Resistance Switching Effect in Octahedral framework oxide
Materials and Devices, 2022 Resistive Random-Access Memories (ReRAM) are an alternative way to create new memory devices. This is physically possible due to the existence in the material, of two resistive states clearly discreditable, as a function of voltage value and polarity ...
Yaovi GAGOU +3 more
doaj +7 more sources