Results 91 to 100 of about 168 (166)

Surface and Bulk Defect Passivation in MAPbI3 Perovskites with Daminozide: Effects on Carrier Dynamics and Mobility

Advanced Science, EarlyView.
This study identifies a novel surface defect in MAPbI3 perovskite that emits mid‐infrared light, distinct from Shockley‐Read‐Hall (SRH) defects. By applying daminozide as a surface passivation layer and bulk additive, both defect types are effectively suppressed.
Junhan Xie, Di Li, Haozheng Li, Bo Peng, Qinye Bao, Jiaming Jiang, Bo Li, Weimin Liu   +7 more
wiley   +1 more source

Local Charge Density Enhancement Strategy in Nitrogen‐rich Covalent Organic Framework for Boosted Iodine Removal From Water

Advanced Science, EarlyView.
The covalent organic framework, phen‐TPA, is designed for efficient iodine removal from aqueous solutions, featuring optimized iodine‐binding N‐sites. It shows the fastest iodine removal kinetics for I2 and the highest capacity for I3−. Large‐scale flow‐through tests demonstrate its effective separation of I2 and I3− in high‐salinity environments ...
Yue Ma, Jinjiao Pan, Huazhen Rong, Lu Liu, Yilei Zhang, Xuewen Cao, Jiacheng Zhang, Tao Liu, Ning Wang, Yihui Yuan   +9 more
wiley   +1 more source

Tailored 3D Lattice Microstructures for Enhanced Functionality in Blood‐Gas Exchange

Advanced Science, EarlyView.
Common hollow fiber structures are associated with inhomogeneous flow, leading to many complications in the medical application of extracorporeal membrane oxygenation. Using locally adapted lattice structures, the overall flow distribution can be manipulated.
Kai P. Barbian, Teresa Lemainque, Ina Grunden, Roman Iwa, Bettina Wiegmann, John Linkhorst, Matthias Wessling, Jan Heyer, Ulrich Steinseifer, Michael Neidlin, Sebastian V. Jansen   +10 more
wiley   +1 more source

Multivariate Covalent Organic Frameworks for High‐Performance Ammonia Nitrogen Separation: Structure‐Property‐Function Relationships

Advanced Science, EarlyView.
Theoretically, this study provides new insights into the atomic‐level adsorption mechanisms and structure‐property‐function relationships of sulfonated COFs for boosting ammonia nitrogen separation. Practically, the findings of this study can guide the design and optimization of COFs and other porous crystalline adsorbents to enhance the capture and ...
Yunhui Zhang, Jinglin Liu, Tao Wang, Kean Zhu, Yifan Gu, Zihao Wang, Meng Zhang, Zijian Xu, Zhenhua Chen, Haitao Li, Wei Jin   +10 more
wiley   +1 more source

Upcycling of Waste Fluororubber to Photocurable High‐Performance Vinyl‐Terminated Liquid Fluororubber by Multifield Coupling One‐Pot Stepwise Reactions

Advanced Science, EarlyView.
Herein, waste fluororubbers undergo controlled oxidative degradation induced by alkali and hydrogen peroxide to yield carboxyl terminated liquid fluororubbers. Subsequently, condensation reaction system efficiently converts carboxyl groups into photoreactive vinyl groups.
Donghan Li, Lu Yu, Shurui Ning, Ping Li, Changle Chen, Dawei Zhao, Mingyi Liao, Qingshi Meng, Shixin Zhang, Qinghong Fang, Hailan Kang, Long Li, Jia Yang   +12 more
wiley   +1 more source

Electrochemical Functionalization of Graphene‐on‐Cu(111): Reactivity, Onset Potentials, and Mechanistic Insights

Advanced Science, EarlyView.
The electrochemical reactivity of graphene‐on‐Cu(111) with various phenyl and alkyl iodides showed different onset potentials. Differential pulse voltammetry (DPV) and density functional theory (DFT) calculations are used to elucidate the differences in onset potentials for phenyl iodides with different substituents.
Minhyeok Kim, Yongchul Kim, Geunsik Lee, Rodney S. Ruoff, Sun Hwa Lee   +4 more
wiley   +1 more source

Direction‐Dependent Conduction Polarity in Altermagnetic CrSb

Advanced Science, EarlyView.
A recently identified altermagnetic candidate, CrSb, has been found to exhibit direction‐dependent conduction polarity (DDCP). Conduction is dominated by electrons in the ab$\textit{ab}$‐plane and by holes along the c$c$‐axis of the hexagonal unit cell of CrSb.
Banik Rai, Krishnendu Patra, Satyabrata Bera, Sk Kalimuddin, Kakan Deb, Mintu Mondal, Priya Mahadevan, Nitesh Kumar   +7 more
wiley   +1 more source

Nano/Micro Metal‐Organic Framework‐Derived Porous Carbon with Rich Nitrogen Sites as Efficient Iodine Hosts for Aqueous Zinc‐Iodine Batteries

Advanced Science, EarlyView.
A cubic zinc‐based metal‐organic framework derived (Zn‐MOF‐derived) porous nitrogen‐doped carbon host is engineered to immobilize iodine, leveraging its hierarchical porosity and rich nitrogen sites to suppress polyiodide shuttling and enhance redox kinetics in zinc–iodine (Zn–I2) batteries.
Yong Li, Xiaotian Guo, Shixian Wang, Wenzhuo Sun, Dianheng Yu, Nana Li, Huijie Zhou, Xiaoxing Zhang, Huan Pang   +8 more
wiley   +1 more source

Resonant Spin Amplification and Accumulation in MAPbI3 Single Crystals

Advanced Science, EarlyView.
Carrier spin dynamics are studied in a 20 µm thin MAPbI3 perovskite single crystal using time‐resolved Kerr ellipticity at cryogenic temperatures. Long spin relaxation (30 ns) and dephasing (21 ns) enable spin accumulation. Spin accumulation effects are discussed in detail along with carrier‐nuclear spin interactions.
Erik Kirstein, Dmitri R. Yakovlev, Evgeny A. Zhukov, Nataliia E. Kopteva, Bekir Turedi, Maksym V. Kovalenko, Manfred Bayer   +6 more
wiley   +1 more source

Linear Polymer Cathode Materials for Highly Efficient Aqueous Zinc‐Ion Batteries: Is the High Active Sites Density Necessary?

Advanced Science, EarlyView.
Two linear polymers with uniformly distributed electron clouds to verify the necessary of high‐density active sites, which enable extremely high active site utilization of 85.7%, thus resulting in superb high specific capacity of 618 mAh g−1 at 1 A g−1 and energy density of 678.62 Wh kg−1 in ZnSO4 and ZnI2 mixture electrolyte.
Yiyang Dai, Yao Yao, Liang Feng, Zhenglong Qiu, Min Deng, Qiang Peng   +5 more
wiley   +1 more source