Results 51 to 60 of about 114,590 (337)

Switching between intramolecular charge transfer and excimer emissions in solids based on aryl-modified ethynyl‒o-carboranes

Cell Reports Physical Science, 2022
Summary: Because of its unique electronic properties, o-carborane has attracted attention as a scaffold for constructing solid-state luminescent materials.
Hideki Yamamoto, Junki Ochi, Kazuhiro Yuhara, Kazuo Tanaka, Yoshiki Chujo   +4 more
doaj   +1 more source

Effect of interchain coupling on conducting polymer luminescence: excimers in derivatives of poly(phenylene vinylene)

, 1997
Optical excitation of a chain in a polymer film may result in formation of an excimer, a superposition of on-chain excitons and charge-transfer excitons on the originally excited chain and a neighboring chain. The excimer emission is red-shifted compared
B. Kraabel, E. L. Frankevich, E. M. Conwell, E. M. Conwell, E. M. Conwell, E. M. Conwell, E. M. Conwell, E. M. Conwell, G. Yu, H. A. Mizes, H. A. Mizes, I. D. Samuel, I. D. W. Samuel, I. H. Campbell, I. Michl, J. W. P. Hsu, L. D. Landau, M. J. Rice, M. W. Wu, M. Yan, P. Gomes da Costa, S. A. Jenekhe, T. Pauck   +22 more
core   +1 more source

On the mechanisms of wetting characteristics modification for selected metallic materials by means of high power diode laser radiation [PDF]

, 2002
This work elucidates and analyses the factors responsible for modifications to the wettability characteristics of metallic materials after high power diode laser (HPDL) treatment.
Lawrence, Jonathan, Li, Lin
core   +1 more source

Selective Formation of Twisted Intramolecular Charge Transfer and Excimer Emissions on 2,7-bis(4-Diethylaminophenyl)-fluorenone by Choice of Solvent

Molecules, 2012
We designed and synthesized a donor-acceptor-donor dye consisting of a 2,7-disubstituted fluorenone with diethylaminophenyl moieties present as strong electron donating groups.
Masayuki Shigeta, Gen-ichi Konishi, Mifumi Morita   +2 more
doaj   +1 more source

On the effects of using CO2 and F2 lasers to modify the wettability of a polymeric biomaterial. [PDF]

, 2010
Enhancement of the surface properties of a material by means of laser radiation has been amply demonstrated previously. In this work a comparative study for the surface modification of nylon 6,6 has been conducted in order to vary the wettability ...
Arefi-Khonsari, Ball, Benson, C.D. Walton, Chen, Cheng, D.G. Waugh, Hao, Harnett, J. Lawrence, Jung, Jung, Kietzig, Kim, Lawrence, Lawrence, Lee, Ma, Mirzadeh, Ouhlal, Pappas, Pfleging, R.B. Zakaria, Rance, Sarantopoulou, Skordoulis, Speranza, Tiaw, Waugh, Wu, Yoon, Yu, Zhao, Zorba   +33 more
core   +1 more source

Carbon steel wettability characteristics enhancement for improved enamelling using a 1.2 kW high power diode laser [PDF]

, 2000
High-power diode laser (HPDL) surface treatment of a common engineering carbon steel(EN8) was found to effect significant changes to the wettability characteristics of the metal.
Agarwala, Agathopoulos, Bourell, Cassie, Chidambaram, Fowkes, Girifalco, Heitz, Henari, J Lawrence, Jaycock, L Li, Lawrence, Lawrence, Lawrence, Li, Li, Li, Neumann, Nikopoulos, Olfert, Ueki, Wenzel, Zhou, Zhou, Zhou   +25 more
core   +1 more source

Enhanced Switching Performance in Single‐Crystalline PbTiO3 Ferroelectric Memristors for Replicating Synaptic Plasticity

Advanced Functional Materials, EarlyView.
This study demonstrated single‐crystalline PbTiO3‐based memristors with atomically sharp interfaces, well‐ordered lattices, and minimal lattice mismatch. The devices exhibited an ON/OFF ratio exceeding 105, high stability, and rich resistance‐state modulation.
Haining Li, Zhiqiang Liao, Risa Kataoka, Md Sarker Shamim, Takeshi Kijima, Hiroyasu Yamahara, Hitoshi Tabata, Munetoshi Seki   +7 more
wiley   +1 more source

Aniline incorporated silica nanobubbles [PDF]

, 2006
We report the synthesis of stearate functionalized nanobubbles of SiO2 with a few aniline molecules inside, represented as C6H5NH2@SiO2@stearate, exhibiting fluorescence with red-shifted emission.
A Blaaderen Van, A E Ostafin, A Enustun, A Flamini, A M Diyas, A S Nair, A S Nair, A S Nair, A Sharma, B S Neporent, C R Viteri, D Tleugabulova, D Velic, G A Eimer, G Bosma, G Hungerford, Ian Maclarenb, J A Imhof, J Bacon, J Claracq, J G Calvert, J M McKiernan, J R Lakowicz, J U Kim, J Wheeler, L A J Garvie, L B Israel, L M Liz-Marazan, M J Rosemary, M Klessinger, M Labanowska, M. J. Rosemary, N Sandhyarani, N Sandhyarani, NAM Verhaegh, O V Makarova, R K Bauer, R M Silverstein, S A Yamanaka, S M Dennsion, S Wawzonek, T Suratwala, T. Pradeep, V. Suryanarayanan, W Stöbber   +44 more
core   +3 more sources

An Ultra‐Robust Memristor Based on Vertically Aligned Nanocomposite with Highly Defective Vertical Channels for Neuromorphic Computing

Advanced Functional Materials, EarlyView.
An ultra‐robust memristor based on SrTiO3‐CeO2 (S‐C) vertically aligned nanocomposite (VAN) achieving exceptional endurance of 1012 switching cycles via interface engineering. Artificial neural networks (ANNs) integrated with S‐C VAN memristors exhibit high training accuracy across multiple datasets.
Zedong Hu, Hongyi Dou, Jeremy B. Gan, Cun Li, Xuanyu Sheng, Juanjuan Lu, Abhijeet Choudhury, Jialong Huang, Yizhi Zhang, Zhongxia Shang, Ye Cao, Xinghang Zhang, Haiyan Wang   +12 more
wiley   +1 more source

Solvent-Modulated Charge-Transfer Resonance Enhancement in the Excimer State of a Bay-Substituted Perylene Bisimide Cyclophane.

Journal of Physical Chemistry Letters, 2019
Excimer, a configurational mixing between Frenkel exciton and charge-transfer resonance states, is typically regarded as a trap state that hinders desired energy or charge-transfer processes in artificial molecular assemblies.
Woojae Kim, Agnieszka Nowak‐Król, Yongseok Hong, F. Schlosser, F. Würthner, Dongho Kim   +5 more
semanticscholar   +1 more source