Results 111 to 120 of about 3,836 (243)

Stress‐guided photo‐programming of cholesteric liquid crystal elastomers for 2D‐to‐3D shape–color information encoding

Responsive Materials, EarlyView.
We reported a stress‐guided photo‐programming strategy that enables cholesteric liquid crystal elastomers (CLCEs) to achieve synchronous 3D shape morphing and structural color evolution from a single 2D film. Abstract Flexible materials with dynamic structural colors have attracted considerable interest for multilevel information interaction, showing ...
Huimin Wu, Chenyi Bu, Yirui Sun, Rui Guo, Sixing Xiong, Kai Wang, Xiaoxuan Wang, Xiang Fang, Jin Qian   +8 more
wiley   +1 more source

Enhancing the Chemical Reactivity of Graphene through Substrate Engineering

Small, EarlyView.
This review highlights methods to enhance the reactivity of graphene through substrate engineering, focusing on strain and charge doping. Strains induced by nanoparticles, metal crystal orientations, or stretchable polymers increase the reactivity of graphene.
Jia Tu, Mingdi Yan
wiley   +1 more source

Precision Local Strain Engineering in 2D Semiconductors and Their van der Waals Heterostructures

Small, EarlyView.
This review highlights recent advances in experimental techniques for mapping and quantifying strain, strategies for imparting programmable local strain via substrate, stressor, and interlayer coupling, and strain‐engineered functionalities in electronics, photonics, and quantum devices.
Byeong Chan Kim, Yoona Kim, Gwan‐Hyoung Lee   +2 more
wiley   +1 more source

Flattening Energy Puddles for Enhanced Charge Transport in Wrinkled WSe2

Small, EarlyView.
Strain‐inducing wrinkles in 1L‐WSe2 create carrier‐trapping energy puddles. Trioctylphosphine selenide (TOPSe) selectively passivates Se vacancies at these wrinkle sites, while steric hindrance suppresses basal‐plane reaction. Comprehensive suite of space‐resolved spectroscopic techniques reveals reduced nonradiative recombination, longer exciton ...
Dae Young Park, Taehoon Kim, Bora Kim, Nohyoon Park, Seungho Bang, Dohyeon Lee, Deogkyu Choi, Dong Hyeon Kim, Jaekak Yoo, Seung Mi Lee, Young Joo Yu, Jieun Jo, Jungeun Song, Hayoung Ko, Yo Seob Won, Takmo Jeong, Seok Joon Yun, Ki Kang Kim, Dong‐Wook Kim, Jooyoung Sung, Mun Seok Jeong   +20 more
wiley   +1 more source

A Platinum (II) Polyyne Oligomers Donor for Efficient Ternary Organic Solar Cells

Solar RRL, EarlyView.
Platinum (II) polyyne oligomers P5 are used as a donor in a ternary organic solar cell. The average power conversion efficiency of 16% surpasses the international record for [Pt] (II) polyyne oligomers. PC71BM speeds up the rise time for electron transfer and slows down the recombination time.
Abdel Aziz Wayzani, Léo Boivin, Romuald Herbinet, Muriel Durandetti, Paul‐Ludovic Karsenti, Fabrice Muller, Christophe Sinturel, Loïc Le Pluart, Pierre D. Harvey, Ganesh D. Sharma, Cyprien Lemouchi   +10 more
wiley   +1 more source

Performance analysis of strengthening reinforced concrete beams under pure torsion using galvanized steel sheets: Experimental and numerical investigation

Structural Concrete, EarlyView.
Abstract Reinforced concrete (RC) beams can be subjected to torsion, and failure due to torsion is brittle and poses a significant risk to occupants. Moreover, strengthening of existing RC beams in torsion may be required due to the upgrade of the structures or as part of structural rehabilitation.
Ahmed Hamoda, Mizan Ahmed, Ahmad G. Saad, Aref A. Abadel, Saad A. Yehia   +4 more
wiley   +1 more source

Modeling the response of UHPC shear‐critical beams: Integrating nonlinear finite element analysis and artificial neural network

Structural Concrete, EarlyView.
Abstract An analytical framework suited for the analysis of shear‐critical ultra‐high performance concrete (UHPC) members is presented. The numerical methodology utilizes a nonlinear finite element analysis formulation integrated with an artificial neural network (ANN) that characterizes the UHPC tension response based on its mix design. In addition, a
Amjad Diab, Anca Ferche
wiley   +1 more source

Strength, deformation and macro and micro-failure performances of the bolted samples under biaxial compression. [PDF]

Sci Rep
Nan H, Qiao J, Ding S, Chen Y, Jiang P, Wei S.   +5 more
europepmc   +1 more source

A new smooth failure criterion for concrete inspired by Lubliner's condition

Structural Concrete, EarlyView.
Abstract A new failure criterion with 10 parameters is proposed, based on Lubliner's idea of joining two Drucker–Prager cones. The novelty lies in the way of introducing deviatoric shape variation: through two Podgórski's functions. This feature allows for improving plane stress cross‐section's compatibility with experimental data.
Inez Kamińska, Aleksander Szwed
wiley   +1 more source

Prediction of stress-strain behavior of rock materials under biaxial compression using a deep learning approach. [PDF]

PLoS One
Li C, Zhang X.
europepmc   +1 more source