Results 71 to 80 of about 78,821 (320)

Bi‐Directional Assembly of Boron Nitride µ‐Platelets by Micro‐Molding for Advanced Thermal Interface Materials

Advanced Functional Materials, EarlyView.
Bi‐directionally assembled BN µ‐platelets in micropatterns formed by a micro‐molding method for thermal interface materials are demonstrated. The BN µ‐platelets are vertically aligned selectively, while compressed regions without patterns accommodate horizontally assembled BN µ‐platelets. Through anisotropic orientation, high thermal conductivities for
Young Gil Kim, In‐Young Jung, Yujin Mun, Joo Hwan Shin, Sang Gil Lee, Gyan Raj Koirala, Taewoo Kang, Jehyung Ok, Hyesu Choi, Jiwon Kim, Youngkwang Shin, Seok Joon Kwon, Tae‐il Kim   +12 more
wiley   +1 more source

Biointerfacing with AgBiS2 Quantum Dots for Pseudocapacitive Photostimulation

Advanced Functional Materials, EarlyView.
It is demonstrated that AgBiS2 quantum dots exhibit unique photoinduced pseudocapacitive charge transfer properties, enabling efficient light‐to‐electrical energy conversion. These quantum dots facilitate enhanced light absorption and transduction when integrated with ZnO nanowires, which serve as an effective charge transport medium.
Ridvan Balamur, Tarik Safa Kaya, Selin Sariyer, Hümeyra Nur Kaleli, Asim Onal, Ugur Berkay Caliskan, Murat Hasanreisoğlu, Rezan Demir‐Cakan, Sedat Nizamoglu   +8 more
wiley   +1 more source

Demonstration of a widely-tunable and fully-coherent high-gain harmonic-generation free-electron laser

Physical Review Special Topics. Accelerators and Beams, 2013
Free-electron lasers (FELs) are fourth-generation light sources that deliver extremely high intensity, ultrashort light pulses over a broad wavelength range from far-infrared to hard x ray.
B. Liu, W. B. Li, J. H. Chen, Z. H. Chen, H. X. Deng, J. G. Ding, Y. Fan, G. P. Fang, C. Feng, L. Feng, Q. Gu, M. Gu, C. Guo, D. Z. Huang, M. M. Huang, W. H. Huang, Q. K. Jia, T. H. Lan, Y. B. Leng, D. G. Li, W. M. Li, X. Li, G. Q. Lin, L. Shang, L. Shen, C. X. Tang, G. L. Wang, L. Wang, R. Wang, X. T. Wang, Zhan S. Wang, Zhi S. Wang, H. F. Yao, K. R. Ye, L. X. Yin, L. Y. Yu, J. Q. Zhang, Meng Zhang, Miao Zhang, T. Zhang, W. Y. Zhang, S. P. Zhong, Q. G. Zhou, D. Wang, Z. T. Zhao   +44 more
doaj   +1 more source

Near‐Field Phonon Nanoscopy and Imaging of Structural Variants in Mixed Phase BiFeO3

Advanced Functional Materials, EarlyView.
Nano‐Fourier transform infrared spectroscopy and scattering scanning near‐field optical microscopy imaging reveal the phonon response of nanoscale phase variants in mixed‐phase BiFeO3 (BFO). Direct mid‐infrared imaging of associated distinct vibrational signatures is used as a non‐invasive optical detection method for electrical switching of ...
Dawei Zhang, En‐Ming You, Lei Wang, Byung‐Kweon Jang, Tanzeela Yousaf, Pengfei Zhang, Jincheol Kim, Chan‐Ho Yang, Jan Seidel   +8 more
wiley   +1 more source

Ultrafast Laser Writing Deep inside Silicon with THz-Repetition-Rate Trains of Pulses

Research, 2020
Three-dimensional laser writing inside silicon remains today inaccessible with the shortest infrared light pulses unless complex schemes are used to circumvent screening propagation nonlinearities. Here, we explore a new approach irradiating silicon with
Andong Wang, Amlan Das, David Grojo
doaj   +1 more source

Multi‐Pathway Upconversion Emission in Symmetry‐Broken Nanocavities: Broadband Multiresonant Enhancement and Anti‐Correlated Interfacial Sensitivity

Advanced Functional Materials, EarlyView.
Symmetry‐broken plasmonic nanoantenna arrays achieve broadband multiresonant enhancement of second harmonic generation (SHG), third harmonic generation (THG), and upconversion photoluminescence (UCPL), under femtosecond laser excitation across the near‐infrared range (1000–1600 nm).
Elieser Mejia, Yuming Zhao, Meitong Nie, Benjamin Pittelkau, Aditya Garg, Junyeob Song, Wenqi Zhu, Henri Lezec, Amit Agrawal, Wei Zhou   +9 more
wiley   +1 more source

Intense terahertz generation in two-color laser filamentation: energy scaling with terawatt laser systems

New Journal of Physics, 2013
We investigate high-power terahertz (THz) generation in two-color laser filamentation using terawatt (TW) lasers including a 0.5 TW, 1 kHz system, as well as 2 and 30 TW systems both operating at 10 Hz.
T I Oh, Y S You, N Jhajj, E W Rosenthal, H M Milchberg, K Y Kim   +5 more
doaj   +1 more source

The Role of the Photo-Generated Carrier in Surface Flashover of the GaAs Photoconductive Semiconductor Switch

IEEE Journal of the Electron Devices Society, 2018
The development of Gallium arsenide photoconductive semiconductor switch has been hampered by the surface flashover. The surface flashover threshold with the laser excitation is far lower than the one without the laser excitation.
Shaoqiang Wang, Wei Shi
doaj   +1 more source

Single-Grain Gate-All-Around Si Nanowire FET Using Low-Thermal-Budget Processes for Monolithic Three-Dimensional Integrated Circuits

Micromachines, 2020
We introduce a single-grain gate-all-around (GAA) Si nanowire (NW) FET using the location-controlled-grain technique and several innovative low-thermal budget processes, including green nanosecond laser crystallization, far-infrared laser annealing, and ...
Tung-Ying Hsieh, Ping-Yi Hsieh, Chih-Chao Yang, Chang-Hong Shen, Jia-Min Shieh, Wen-Kuan Yeh, Meng-Chyi Wu   +6 more
doaj   +1 more source

Electrical Impedance Tomography Monitoring of Salt Transportation in Cellulose Hydrogel for Solar‐Driven Evaporative Desalination via Laser Defined Wettability

Advanced Functional Materials, EarlyView.
Solar‐driven evaporation is a promising solution to the global water crisis; however, it faces a significant challenge of salt accumulation during the evaporation process. This study introduces an innovative in situ electrical impedance tomography technique for real‐time monitoring of salt transportation in the evaporator.
Yang Xu, Haosong Zhong, Xupeng Lu, Miao Tang, Siyu Chen, Cuiyun Yang, Yi Chen, Minseong Kim, Yang Liu, Mitch Guijun Li   +9 more
wiley   +1 more source