Results 121 to 130 of about 121,814 (291)

Dual‐Wavelength Control of Charge Accumulation in Rubrene Microcrystals with Anisotropic Conductivity

Advanced Science, EarlyView.
Rubrene microcrystals, forming two distinct sector types, are investigated using photoemission electron spectroscopy. The two sectors exhibit a built‐in charge landscape, arising from anisotropic conductivities. Upon excitation with UV light, the diamond‐shaped sectors accumulate significant charge, whereas the triangular sectors remain essentially ...
Moha Naeimi, Ingo Barke, Sylvia Speller
wiley   +1 more source

Interfacial Growth of 420 nm Ultrathin and Dense MOFs for Composite Electrolyte to Reduce Li+ Conduction Resistance and Inhibit Lithium Dendrite

Advanced Science, EarlyView.
In this work, an interfacial growth method using PVDF‐HFP enables controlled permeation of 2‐methylimidazole to react with Co2+, forming an ultrathin (420 nm) ZIF‐67 layer by precisely tuning the reaction time. This dense layer promotes lithium salt dissociation and suppresses dendrite growth, while its ultrathin nature reduces Li+ transport resistance,
Xinhong Qi, Zhaokai Rui, Shichen Zhang, Yihang Li, Ziyi Xin, Mengjuan Li, Lu Gao, Yuchen He, Xiaobin Jiang, Xiangcun Li, Gaohong He   +10 more
wiley   +1 more source

In‐Situ Constructed Cations for 2D/3D Perovskite Heterostructure for Stable and Efficient Photovoltaics

Advanced Science, EarlyView.
An in‐situ spacer‐cation construction strategy is developed by inducing strong hydrogen bonding between n‐hexyl phosphonic acid (HPA) and FA+, forming a stable N‐type 2D/3D perovskite heterostructure. This approach suppressed defect formation, promoted electron transport, and improved intrinsic stability, delivering 26.32% PCE, excellent operational ...
Min Liu, Quanwen You, Licheng Liu, Xinbo Shi, Zhen Wang, Bo Wu, Zhengchi Yang, Guofu Zhou, Jun‐Ming Liu, Jinwei Gao, Yue Jiang   +10 more
wiley   +1 more source

Balancing Bulk Solution Chemistry and Cation Solvation for Stable Aqueous Aluminum Batteries

Advanced Science, EarlyView.
A dual‐scale electrolyte design balances bulk solution chemistry and cation solvation in aqueous aluminum batteries. Regulation of the bulk solution preserves high ionic conductivity and electrochemical stability, while modulation of the Al3+ solvation environment lowers desolvation penalties and suppresses hydrogen evolution. This balanced electrolyte
Bei‐Er Jia, Gang Wu, Huoliang Gu, Jin Jie Liew, Dongping Chen, Jinxuan Song, Dan‐Yang Wang, Erhai Hu, Hong Han Choo, Yuzhu Liu, Yue Hu, Jinpeng Song, Anchun Tang, Zhenxiang Xing, Qiang Zhu, Chunshuang Yan, Chade Lv, Man‐Fai Ng, Qingyu Yan   +18 more
wiley   +1 more source

Time‐of‐Flight Secondary Ion Mass Spectrometry‐Partial Least Square Regression for Quantifying Interleukin‐8 in Biopolymer Matrices

Advanced NanoBiomed Research
Unraveling the complexity of biomatrices is a persisting challenge in many areas of the life sciences. The detection of soluble signaling molecules—cytokines and growth factors—within multicomponent biopolymer scaffolds is of particular interest as they ...
Ralf Zimmermann, Mirko Nitschke, Marten Samulowitz, Nicholas R. Dennison, Carsten Werner   +4 more
doaj   +1 more source

Polymer surface structures determined using ToF-SIMS

Reviews in Analytical Chemistry, 2014
This article reviews the recent applications of time-of-flight secondary ion mass spectrometry in the determination of surface structures of semicrystralline and amorphous polymer films. Examples given include the determination of end-group distributions
Chan Chi-Ming, Weng Lu-Tao, Lau Yiu-Ting R.   +2 more
doaj   +1 more source

Hydrogen‐Stabilized Self‐Rectifying Memristor Arrays for Reliable Multilevel Synapses in Transformer‐Based Keyword Spotting

Advanced Science, EarlyView.
A non‐filamentary self‐rectifying HfO2/TiOx resistive random‐access memory integrates H2 annealing with an incremental step pulse with verify algorithm to achieve stable and linear analog conductance modulation. The device enables low‐current 6‐bit multilevel operation while suppressing sneak current in crossbar arrays. Implemented in Transformer‐based
Seonjeong Lee, Seohyeon Ju, Won Joo Lee, Myounggon Kang, Sungjun Kim, Yoon Kim   +5 more
wiley   +1 more source

Characterization of silicon-based chromium (VI) replacement coatings by using time-of-flight secondary ion mass spectrometry and salt spray tests

Results in Surfaces and Interfaces
This paper proposes an innovative approach in characterization of silicon-based chromium (VI) replacement coatings on an Al substrate by using, salt spray tests and time-of-flight secondary ion mass spectrometry (ToF-SIMS) performed in profile mode by a ...
Damien Cossement, Emeline Lachery, Arno Schut, Patrick Karpe, Sylvain Desprez, Mireille Poelman   +5 more
doaj   +1 more source

Overcoming Interfacial Hurdles in Solid‐State Aluminum Batteries for Safe and Energy‐Dense Storage

Advanced Science, EarlyView.
Solid‐state aluminum batteries (SSABs) promise high energy density and intrinsic safety but face severe solid–solid interfacial challenges. This review reveals the three core hurdles—anode passivation, cathode contact loss, and electrolyte grain boundary resistance and discusses strategies including artificial interphases, alloying, and composite ...
Yunlei Wang, Xiaogang Zhang, Mingguang Wang, Yifan Wu, Shitao Dou, Taibin Wu   +5 more
wiley   +1 more source

Metal Battery Anode: Rich in Electrons, Rich in Problems: A Critical Review from Industrial Perspectives

Advanced Science, EarlyView.
Metal‐anode batteries using Li, Na, Mg, and Ca offer exceptionally high energy density, but dendrites, unstable interphases, cracking, and pore formation hinder durability and safety. This review shows how careful electrolyte and interphase design can stabilize these reactive metals.
Jian Pan, Chan Shu, Oscar Tutusaus, Rana Mohtadi   +3 more
wiley   +1 more source