Results 171 to 180 of about 2,998,373 (268)

Analysis of Variable Frequency Energy-Saving Operation of Beam Pumping Unit

IOP Conference Series: Materials Science and Engineering, 2018
Jinping He, Kai Ji, Ming Xu, Guozhu Mei, Derong Lin, Huanjing Xia   +5 more
openaire   +1 more source

Excitation‐Selective Hydrochromic Upconversion in Zero‐Dimensional Metal Halides

Advanced Science, EarlyView.
Excitation wavelength dictates whether moisture speaks. In zero‐dimensional metal halides, the same humidity leaves the upconversion emission unchanged under 980 nm excitation yet triggers a distinct green‐to‐red shift under 1550 nm. This excitation‐selective hydrochromism, governed by the absorption at each wavelength, enables stimulus‐dependent ...
Joo Hyeong Han, Jeong Min Seo, Sung Woo Jang, Yong Min Park, San Ha Choi, Ji Hyeon Cha, Won Bin Im   +6 more
wiley   +1 more source

Research on deformation and seepage properties of Larssen pile reinforcing cofferdam based on numerical analysis, Tianjin, China. [PDF]

Sci Rep
Lin S, Wang X, Zhang X, Liu S.
europepmc   +1 more source

Trap‐Programmable Ruddlesden–Popper Perovskite Nanocrystals for Persistent Optoelectronic Memory and Photonic Synapses

Advanced Science, EarlyView.
This work presents trap‐programmable Ruddlesden–Popper perovskite nanocrystals for ultralong‐lived optical memory and photonic synapses. Layer‐controlled octahedral distortion modulates trap depth and carrier‐storage kinetics, enabling persistent luminescence beyond 5000 s at room temperature.
Xuanyu Zhu, Qi Liu, Qi Wei, Hui Ren, Luwei Zhou, Jiangbo Peng, Yuxuan Chen, Jiatong Wang, Leyi Zhao, Pengzhi Wang, Xue Hao, Ting Wang, Mingjie Li   +12 more
wiley   +1 more source

Evanescent Absorption Spectroscopy of Transition Metal Dichalcogenide Materials Using Guided Photoluminescence in Si₃N₄ Photonic Waveguides. [PDF]

ACS Appl Opt Mater
Gonzalez-Morote V, Sledzinska M, Gertych AP, Jaffery SHA, Zdrojek M, Navarro-Urrios D.   +5 more
europepmc   +1 more source

Optical Access to Dark Excitons Via Spin–Phonon Fano Interference

Advanced Science, EarlyView.
Dark excitons in quantum dots neither absorb nor emit light and stay hidden from optical spectroscopy. Quantum interference now reveals them: light scattered by acoustic phonons interferes with a phonon‐assisted spin flip between bright and dark exciton, carving a Fano dip into the spectrum whose position gives the bright–dark splitting. Magnetic field,
Janina J. Schindler, Katja Barthelmi, Mikhail M. Glazov, Carlo Sgroi, Sven Scholz, Arne Ludwig, Andreas D. Wieck, Jörg Debus   +7 more
wiley   +1 more source

All-optical polarization control in time-varying low-index films via plasma symmetry breaking. [PDF]

Nat Photonics
Jaffray W, Stengel S, Boltasseva A, Shalaev VM, Vincenti MA, de Ceglia D, Scalora M, Rizza C, Ferrera M.   +8 more
europepmc   +1 more source

Polymer Sequence Design of Zwitterionic Polymer/PEDOT:PSS Blend Films for Improved Charge Transport and Stability in Organic Electrochemical Transistors

Advanced Electronic Materials, EarlyView.
Solution blending of zwitterionic polymers with PEDOT:PSS provides a simple route to OECT materials with enhanced threshold voltage stability in biologically relevant environments. The polymer sequence alters outer‐domain structure within the preserved PEDOT:PSS framework, thereby tuning charge transport.
Wakana Takahashi, Aki Kashiwazaki, Masaya Mitsuishi, Shunsuke Yamamoto   +3 more
wiley   +1 more source

Quasi-Distributed Partial Discharge Monitoring System with Remote Demodulation Based on DFB-FL/Interferometer Hybrid Sensing. [PDF]

Nanomaterials (Basel)
Lu Y, Shao Q, Yu Q, Zhang H, Zhang X, Zhan H, Zhang W.   +6 more
europepmc   +1 more source

Atomic Scale Control of Thermal Conductivity in LaMnO3/SrMnO3 Superlattices

Advanced Electronic Materials, EarlyView.
Interface‐dominated cross‐plane thermal transport in [(LaMnO3)m/(SrMnO3)n]10 superlattices can be controlled by the octahedral rotation/tilt angle φOOR of the MnO6 octahedra, which as well is controlled by the “m/n” ratio. ABSTRACT We report atomic scale structure and phonon thermal transport in (LaMnO3)m/(SrMnO3)n/SrTiO3(100) superlattices (LMO/SMO ...
H. Ulrichs, V. Roddatis, U. Roß, J. P. Bange, D. Meyer, S. Lopatin, V. Radisch, D. Metternich, I. V. Maznichenko, S. Ostanin, R. Egoavil, I. Lazić, V. Moshnyaga   +12 more
wiley   +1 more source