Results 161 to 170 of about 9,331 (329)

Exciton Binding Energy of Phosphorescent Emitter Molecules in Organic Light‐Emitting Diodes

Advanced Functional Materials, EarlyView.
Energy level alignment is key to efficient OLED design, yet determining LUMO energies remains challenging. A methodology based on field‐induced dissociation and kinetic Monte Carlo simulations is presented to extract LUMO energies of iridium‐based phosphorescent emitters from their exciton binding energy.
Hiroki Tomita, Lucas R. L. Norg, Patrick Diederen, Clint van Hoesel, Christ H. L. Weijtens, Peter A. Bobbert, Reinder Coehoorn   +6 more
wiley   +1 more source

3D Printing Innovations in Polymeric Porous and Patterned Architecture

Advanced Functional Materials, EarlyView.
Polymeric foams occupy a unique structural space between dense solids and open networks, where engineered void fraction governs mechanical compliance, thermal resistance, and mass transport. Additive manufacturing now enables precise spatial control over cellular architecture, unlocking designer foam structures across applications spanning crash ...
Dhanush Patil, Sri Vaishnavi Thummalapalli, Clarissa Westover, Arunachalam Ramanathan, M. Taylor Sobzcak, Roumika Patil, Qixuan Xiang, Tiantian Li, Sui Yang, Timothy E. Long, Hongyue Sun, Xianqiao Wang, Yang Liu, Kenan Song   +13 more
wiley   +1 more source

Chip-scale atomic spectrometer with silicon nitride optical phased array

APL Photonics
The integration of nanophotonic optical phased arrays (OPA) with alkali vapor cells has the potential to enhance the performance of chip-scale atomic systems by enabling novel methods for beam shaping and active alignment in atomic spectroscopy.
J. Januszewicz, A. P. McWilliam, S. Dyer, J. P. McGilligan, P. F. Griffin, E. Riis, E. Di Gaetano, M. Sorel, D. J. Paul, K. Gallacher   +9 more
doaj   +1 more source

Si Photonics FMCW LiDAR Chip with Solid-State Beam Steering by Interleaved Coaxial Optical Phased Array. [PDF]

Micromachines (Basel), 2023
Lei Y, Zhang L, Yu Z, Xue Y, Ren Y, Sun X.   +5 more
europepmc   +1 more source

1000-Element Silicon Optical Phased Array for Aliasing-Free 2D Optical Beam Steering

, 2022
We experimentally demonstrated a 1000-element silicon optical phased array based on a slab grating and half-wavelength-spacing waveguide array. A large beam steering range of >140° and a small beam divergence of 0.16° were achieved.
Meng, Xiansong, Hu, Hao, Liu, Yong
core  

Quantifying Subsurface Weak in‐Plane Magnetization of Mixed Phase BiFeO3 by Scanning Nitrogen Vacancy Magnetometry

Advanced Functional Materials, EarlyView.
We use scanning nitrogen vacancy magnetometry to directly image the weak in‐plane magnetic moments in mixed phase BiFeO3 at the nanoscale and quantify the local magnetic moments to be 18.8±2.0 μB/nm2 in the rhombohedral‐like phase and 1.5±0.6 μB/nm2 in the well‐known non‐magnetic tetragonal‐like phase.
Lei Wang, Zhewen Xu, Yuwen Xu, Björn Josteinsson, Simon Josephy, Dawei Zhang, Yunlong Sun, Heung‐Sik Park, Jihun Kim, Kanghyun Chu, Kyung Song, Danyang Wang, Chan‐Ho Yang, Andrea Morales, Jan Seidel   +14 more
wiley   +1 more source

Dispersive silicon-nitride optical phased array incorporating arrayed waveguide delay lines for passive line beam scanning. [PDF]

Sci Rep, 2022
Bhandari B, Wang C, Gwon JY, Heo JM, Ko SY, Oh MC, Lee SS.   +6 more
europepmc   +1 more source

Continuous angle steering of an optically- controlled phased array antenna based on differential true time delay constituted by micro-optical components

, 2015
Jian Wang, Peipei Hou, Haiwen Cai, Jianfeng Sun, Shunan Wang, Lijuan Wang, Fei Yang   +6 more
openalex   +1 more source

Invisible Polymer Walls Enhance Reorientational Optical Nonlinearity in Oligothiophene‐Doped Liquid Crystals

Advanced Functional Materials, EarlyView.
The polymer wall stabilized dye‐doped liquid crystals (PWLCs) enhance the sensitivity of photoinduced molecular reorientation in dye‐doped LC systems. The PWLC with an invisible polymer wall successfully reduces the threshold intensity and functions as an optical limiter under the incidence of low intensity light laser source.
Junki Yokota, Yuya Nakata, Erika Katayama, Miho Aizawa, Kyohei Hisano, Shoichi Kubo, Atsushi Shishido   +6 more
wiley   +1 more source

Template‐Confined Synthesis of Shape‐Engineered Single‐Crystal Gold Microplates in Lithographically‐Defined Polymeric Patterns

Advanced Functional Materials, EarlyView.
Single‐crystal gold microplates are high‐performance nanomaterials with an impressive wafer‐based application space. Progress has, however, been tempered by an inability to exert synthetic control over microplate size, shape, and positioning. In this work, control over these parameters is demonstrated using a seed‐mediated synthesis that both confines ...
Debasish Panda, Md Rashed Nizam, Walker J. Tuff, Collin C. Wyant, Maksym Zhukovskyi, Matthew R. Rosenberger, Botond Sánta, Edward C. Kinzel, Robert A. Hughes, Svetlana Neretina   +9 more
wiley   +1 more source