Results 231 to 240 of about 3,015,797 (333)

Noise Fingerprints as a Quantitative Order Parameter for Polarization‐ and Defect‐Mediated Switching in Hafnia Ferroelectrics

Advanced Science, EarlyView.
Low‐frequency noise fingerprints in hafnia ferroelectrics provide a quantitative handle to resolve the long‐standing debate between polarization‐mediated and defect‐mediated switching. By tuning oxygen vacancy density via ALD O3 dose time and applying a physically constrained deconvolution, we extract bias‐resolved current fractions for both mechanisms
Ryun‐Han Koo, Jiseong Im, Joon Hwang, Sung‐Ho Park, Jonghyun Ko, Kangwook Choi, Sangwoo Ryu, Gyuweon Jung, Jong‐Ho Lee   +8 more
wiley   +1 more source

Reaction Mechanism, Challenges, and Strategies of High‐Energy‐Density Sodium‐Ion Batteries

Advanced Science, EarlyView.
Focusing on high‐energy‐density sodium‐ion batteries, this review highlights the advantages offered by conversion‐type cathode materials. The currently studied cathode materials are systematically introduced. By analyzing sulfur, oxygen, and transition metal halides and other conversion‐type cathodes, the key challenges associated with these cathodes ...
Dan Yu, Yuxin Cui, Qinghao Chen, Lu Gao, Xia Liu, Tianci Li, Wenju Zhu, Quanxiang Li, Weimin Kang   +8 more
wiley   +1 more source

All HfO_<i>x</i>-Resistive Switches with the Conducting Oxygen Vacancy Exchange Layer and Self-Limited Oxide Layer. [PDF]

ACS Appl Mater Interfaces
Schreyer P, Kaiser N, Nasiou D, Piros E, Duan Y, Kim T, Li Y, Shih LC, Winkler R, Aguirre FL, Vogel T, Arzumanov A, Chen JS, Molina-Luna L, Alff L.   +14 more
europepmc   +1 more source

From Solution to Surface: How the Catalytic Environment Modulates Peptide Bond Cleavage by Metal‐Oxo Cluster Nanozymes

Advanced Science, EarlyView.
Comparison of homogeneous Hf12(sol) and heterogeneous Hf12(precip) metal‐oxo clusters enables investigation of how solubility influences nanozymatic reactivity and selectivity toward proteolysis, without introducing confounding factors from differences in cluster identity.
Kilian Declerck, Muhammed Jibin Parammal, Carlotta Seno, Thomas J. N. Hooper, Dimitrios Sakellariou, Jonathan De Roo, Nada D. Savić, Tatjana N. Parac‐Vogt   +7 more
wiley   +1 more source

Innovative hafnium composite: efficient fabrication and advanced biomedical potential in dentistry and oral health. [PDF]

RSC Adv
Sead FF, Aldulaimi A, Altalbawy FMA, Saeed SM, Naem S, Kadhim IM, Taher WM, Muzammil K, Smerat A, Al Hesani M.   +9 more
europepmc   +1 more source

Nitrogen‐Boosted H2O2 Production of Arginine‐Polyphenol Nanozyme Drives Oxidative Eustress for Hair Regeneration

Advanced Science, EarlyView.
PEA nanoenzymes are assembled from L‐arginine and EGCG. The nitrogen element in arginine enhances the thermodynamic feasibility of H2O2 production through PEA's oxygen reduction catalysis, enabling nitrogen‐dependent H2O2 release. Intradermal delivery of PEA via microneedles promotes efficient H2O2 synthesis, thereby stimulating regrowth in telogen ...
Yifei Wang, Yaojia Yang, Aoxue Wang, Chen Shen, Shenliang Tan, Changsheng Liu, Yuzheng Zhao, Xue Qu   +7 more
wiley   +1 more source

Lateral stress distribution analysis on hafnium metal bar for implant superstructure- A finite element analysis. [PDF]

J Oral Biol Craniofac Res
Meghna B, Rajaraman V, Ariga P, Sekaran S, Lokesh Sai K.   +4 more
europepmc   +1 more source

Low‐Voltage and High‐k Properties of Bilayer HZO Capacitors at the Morphotropic Phase Boundary for Next‐Generation Memory Applications

Advanced Science, EarlyView.
The HfxZr1‐xO2‐based ferroelectric/antiferroelectric bilayer capacitor exhibits morphotropic‐phase‐boundary behavior with a high dielectric constant (∼52) at 2 V. Phase engineering stabilizes o/t‐phase coexistence and suppresses m‐phase formation, enabling capacitance enhancement and self‐optimization under cycling for scalable low‐voltage, high‐κ ...
Junseok Kim, Hyeonjung Park, Changwoo Han, Huiseong Shin, Myeongjae Choi, Changhwan Shin   +5 more
wiley   +1 more source

Electronic-Structural Phase Correlations in Oxygen-Deficient Hafnia Nanocrystals. [PDF]

Small
Besleaga C, Botea M, Negrila CC, Kuncser A, Istrate CM, Nitescu A, Stan GE, Sahoo SP, Vilquin B, Pintilie L.   +9 more
europepmc   +1 more source

Enhanced Bandgap Flexibility in Perovskite‐Silicon Tandem Solar Cells via Three‐Terminal Architecture

Advanced Science, EarlyView.
Three‐terminal (3T) perovskite/silicon tandem solar cells overcome the current‐matching constraints of 2T designs. Using an IBC POLO silicon bottom cell, we demonstrate a 30.1% PCE, with performance largely decoupled from perovskite bandgap and enhanced resilience under realistic, time‐dependent solar spectra.
Mohammad Gholipoor, Michael Rienaecker, Xuzheng Liu, Seyedamir Orooji, Lingyi Fang, Paul Fassl, Renjun Guo, Uli Lemmer, Robby Peibst, Ulrich Wilhelm Paetzold   +9 more
wiley   +1 more source