Results 71 to 80 of about 2,929 (285)

Nonlinear optical absorption of non-spherical silver nanoparticles and organic dyes mixtures

EPJ Web of Conferences, 2018
We study the features of the nonlinear optical response of silver nanoparticles (Ag NPs) of spherical and triangular shapes synthesized using a citrate-borohydride approach and their mixtures with methylene blue (MB+).
Zvyagin Andrey I., Perepelitsa Aleksey S., Lavlinskaya Mariya S., Ovchinnikov Oleg V., Smirnov Mikhail S., Ganeev Rashid A.   +5 more
doaj   +1 more source

Reverse saturable absorption of porphyrin-like complexes

Acta Physica Sinica, 2007
We report here the experimental observations on the nature of the reverse saturable absorption over the visible region(450—470 nm) for two novel porphyrin-like complexes and tetraphenylporphyrin using open aperture z-scan. They all exist large reverse saturable absorption between the Soret and Q bands.
null Zhang　Bing, null Liu Zhi-Bo, null Chen Shu-Qi, null Zhou Wen-Yuan, null Zang Wei-Ping, null Tian Jian-Guo, null Luo Dai-Bing, null Zhu Zhi-Ang   +7 more
openaire   +1 more source

Resolving the Cu(bdc) Conundrum: Identifying Non‐Porous Packing of Prototypical Coordination‐Network Thin Films Combining Advanced Diffraction Techniques and Computational Modelling

Advanced Functional Materials, EarlyView.
Solution‐processed Cu(bdc) forms prototypical MOF thin films for which a multitude of not fully satisfactory structural models have been suggested. Combining rotating grazing‐incidence diffraction and X‐ray reflectivity on two complementary samples with density‐functional theory, we first discard the previously suggested models and then identify a non ...
Narges Taghizade, Mario Fratschko, Robbin Steentjes, Mercedes Linares‐Moreau, Paolo Falcaro, Christof Wöll, Roland Resel, Egbert Zojer   +7 more
wiley   +1 more source

Nonlinear Optical Properties Tuning in Meso-Tetraphenylporphyrin Derivatives Substituted with Donor/Acceptor Groups in Picosecond and Nanosecond Regimes

Molecules, 2015
meso-Tetraphenylporphyrin (TPP) and its two substituted derivatives (meso-tetrakis(4-cyanophenyl)porphyrin [TPP(CN)4] and meso-tetrakis(4-methoxyphenyl)porphyrin [TPP(OMe)4]) were synthesized.
Guanghong Ao, Zhengguo Xiao, Xuemin Qian, Zhongguo Li, Yuxiao Wang, Xueru Zhang, Yinglin Song   +6 more
doaj   +1 more source

Blood Biomarkers and Surface‐Enhanced Raman Spectroscopy for Gout: A Comprehensive Review

Advanced Functional Materials, EarlyView.
Schematic illustrating gout disease progression from asymptomatic hyperuricemia to chronic tophaceous disease, highlighting the limitations of conventional imaging and biochemical diagnostics and the potential of engineered SERS platforms for ultrasensitive blood‐based detection of urate‐related biomarkers across disease stages, with the color gradient
Isuri Perera, Chiranjeevi Kanike, Appurva Tiwari, Hongyan Wu, Larry D. Unsworth, Ben Bin Xu, Xuehua Zhang   +6 more
wiley   +1 more source

New extended methine dyes for application in laser technology [PDF]

, 1993
Based on the known reverse saturable absorption properties of certain coumarin and long chain polymethine dyes, the synthesis of new related structures was undertaken in order to examine the relationships between structure and RSA activity. It was hoped
Millar, V., Millar, Valerie
core  

Toward Broadband Reverse Saturable Absorption: Investigating the Impact of Cyclometalating Ligand π‑Conjugation on the Photophysics and Reverse Saturable Absorption of Cationic Heteroleptic Iridium Complexes

, 2017
The synthesis, photophysics and reverse saturable absorption of a series of bis-cyclometalated Ir­(III) complexes Ir­(C∧N)2L·PF6, where L = 3,8-bis­[9,9-di­(2-ethylhexyl)-9H-fluoren-2-yl]-1,10-phenanthroline and C∧N = 2-phenylpyridine (ppy, 1), 2 ...
Wenfang Sun (1705984), Peng Cui (33358), Svetlana Kilina (1295253), Li Wang (15202)   +3 more
core   +1 more source

A Molecular Shielding Strategy to Develop Low Protein Binding, Renal Clearable Pan‐Cancer Near‐Infrared Probes

Advanced Functional Materials, EarlyView.
A molecular shielding strategy to convert “protein‐sticky” and “non‐tumor specific” clinical ICG dye, into a “low protein binding” and “tumor‐targeting” dye with prolonged blood circulation and renal clearance is described. These shielded ICGs demonstrate strong tumor accumulation and optimal tissue clearance, resulting in high tumor‐to‐background ...
Li Xiang, Kailin Mooney, Mingchong Dai, Morgan R. Stewart, Samantha Holland, Michael I. Henderson, Samuel Drennan, Ramon F. Barajas Jr., Jared M. Fischer, Adem Yildirim   +9 more
wiley   +1 more source

Phase Evolution Kinetics in Additive‐Free 19.75% Organic Photovoltaics Empowered by Solvent Vapor Annealing

Advanced Functional Materials, EarlyView.
Solvent vapor annealing enables kinetic control of additive‐free morphology in organic solar cells. Selective plasticization of acceptor forms an optimal fibrillar network, boosting efficiency to 19.06% (binary) and 19.75% (ternary), with ultrafast exciton dissociation and reduced recombination.
Jie Lv, Jieni Chen, Cenqi Yan, Patrick W. K. Fong, Jingjing Zhao, Daming Zheng, DingQin Hu, Xiaoman Ding, Xiaokang Sun, Chuanlin Gao, Guangye Zhang, Qianguang Yang, Can Zhu, Pei Cheng, Shirong Lu, Zhipeng Kan, Zhiwei Ren, Guangliu Ran, Wenkai Zhang, Hanlin Hu, Gang Li   +20 more
wiley   +1 more source

Localized surface plasmon resonance induced nonlinear absorption and optical limiting activity of gold decorated graphene/MoS2 hybrid

Carbon Trends
The synergistic supremacy of a hybrid nanocomposite made of reduced graphene oxide (rGO), molybdenum disulfide (MoS2) and gold nanoparticles (Au) for Q-switching and optical limiting applications is investigated.
M. Abith, T.C. Sabari Girisun
doaj   +1 more source