Results 81 to 90 of about 2,929 (285)

Powering Nanocrystal‐Based Heat Engines With Light‐Emitting Metasurfaces That Influence Their Temperature

Advanced Functional Materials, EarlyView.
Metasurfaces and other structured photonic environments can dramatically modify the absorption and/or light emission of semiconductors. However, the consequences of these changes on the temperature of the system are not well understood. The authors address this problem for colloidal nanocrystals and leverage their findings to convert light into ...
Hugo Kowalczyk, Yihao Yuan, Augustin Caillas, Amel Saidoun, Roméo Bonnet, Pascal Filloux, Emmanuel Lhuillier, Aloyse Degiron   +7 more
wiley   +1 more source

Novel effects in reverse-saturable absorbers

, 1994
The response of reverse-saturable dyes, since it is associated with electronic transitions, can be extremely fast, and consequently there have been proposals for the application of these dyes to laser mode locking, pulse shaping, and optical limiting. We
Welford, K. R., Wherrett, B. S., Hughes, S., Spruce, G.   +3 more
core  

Reverse saturable absorption and optical limiting performance of fullerene-functionalized polycarbonates in femtoseond time scale

, 2005
The reverse saturable absorption and the optical limiting (OL) property of fullerene-functionalized polycarbonates (C60-PCs) which were synthesized by a direct reaction of C60 and PC in the presence of AIBN using 1, 1, 2, 2-tetrachloroethane as the ...
Wu, Huixia, Cai, Ruifang, Li, Bo, You, Guangjun, Qian, Shixiong, Lin, Yanghui, Zhu, Rongyi, Tong, Rui   +7 more
core   +1 more source

Hybrid Solar Cell/Triboelectric Nanogenerator Based on Stable Two‐Dimensional Covalent Organic Frameworks

Advanced Functional Materials, EarlyView.
This study highlights the integration of stable two‐dimensional covalent organic framework (COF) films as photoactive layers in hybrid nanoenergy devices. The results demonstrate their capacity to generate electricity under both sunny and rainy conditions, showcasing versatility and resilience.
Joab D. Guerrero, Susana Ramos‐Terrón, Salvador R. G. Balestra, José M. Malagón, David Aparicio, Lucia Velasco, Asterios Charisiadis, Dooshaye Moonshiram, Margarita Darder, Pilar Aranda, Bernd Wicklein, Gustavo de Miguel, Javier Pérez‐Carvajal, Eva M. García‐Frutos   +13 more
wiley   +1 more source

Soret reverse saturable absorption of graphene oxide and its application in random lasers

, 2019
In the past, carbon-based materials have shown both saturable and reverse saturable absorption, and most recently among them, the optical limiting behavior of graphene and graphene oxide caused by nonlinear scattering or fast nonlinear absorption effects,
Claudio Conti, Prizia R., Radivoje Prizia, Neda Ghofraniha, Conti C., Ghofraniha N.   +5 more
core   +1 more source

MXene Wrapped Magnetic Mesocrystals for Durable Redox Catalytic Cancer Therapy and Responsive MRI

Advanced Functional Materials, EarlyView.
Conformal wrapping of ultrathin Ti3C2Tx MXene nanosheets on Fe3O4 mesocrystals creates topology‐stabilized Schottky junctions that direct photoinduced electron transfer under NIR irradiation. The unique architecture sustains Fenton catalysis, promotes continuous hydroxyl radical production, and provides photo‐responsive MRI contrast.
Min Jun Ko, Seongchan Kim, Jun‐Hyeok Han, Sanghee Lee, Minji Ahn, Hong En Fu, Young Jun Jang, Yoo Sang Jeon, Weiguo Li, Young Keun Kim, Dong‐Hyun Kim   +10 more
wiley   +1 more source

Spectral dependence of third-order susceptibility of Au triangular nanoplates

Scientific Reports, 2020
We experimentally investigated the spectral dependence of the third-order susceptibility $$\chi^{\left( 3 \right)}$$ χ 3 of Au triangular nanoplates in a broad wavelength region (400–1,000 nm).
Boyi Zhang, Rodrigo Sato, Miyoko Tanaka, Yoshihiko Takeda   +3 more
doaj   +1 more source

Spatially Decoupling Heating and Evaporation for Convection‐Enhanced 3D Solar Evaporation With Continuous Salt Harvesting

Advanced Functional Materials, EarlyView.
An architecture‐enabled bottom‐heated 3D solar convective evaporator spatially decouples photothermal heating from evaporation, triggering natural convection that intensifies sidewall vapour removal and heat transfer. The system achieves significantly enhanced evaporation rates over 2D and conventional 3D designs while confining salt precipitation to ...
Xiaolong Ma, Yan Zhao, Yan Yan, Muhammad Amjad, Guice Yao, Hui Gao, Shudan Wei, Dongsheng Wen   +7 more
wiley   +1 more source

Structure property relationship of a new nonlinear optical organic crystal: 1-(3,4-Dimethoxyphenyl)-3-(3-fluorophenyl)prop-2-en-1-one for optical power limiting applications

Results in Physics, 2017
A new organic potential nonlinear optical (NLO) material 1-(3,4-dimethoxyphenyl)-3-(3-fluorophenyl)prop-2-en-1-one (DMP3FP) is crystallized in acetone.
S. Raghavendra, C.S. Chidan Kumar, T. Chandra Shekhara Shetty, B.N. Lakshminarayana, Ching Kheng Quah, S. Chandraju, G.S Ananthnag, R.A. Gonsalves, S.M. Dharmaprakash   +8 more
doaj   +1 more source

Bandgap‐Engineered AlGaAs/GaAs Heterostructures for Wavelength‐Selective Dual‐Polarity Photoelectrochemistry

Advanced Functional Materials, EarlyView.
Bandgap‐engineered AlGaAs/GaAs heterostructures exhibit wavelength‐selective dual‐polarity photoelectrochemistry, switching from photocathodic to photoanodic response depending on excitation wavelength. The polarity transition is governed by band‐selective absorption, built‐in electric‐field‐driven carrier transport, and interfacial charge‐transfer ...
Yukai Mao, Lipin Chen, Jules Courtin, Siyu Lin, Gangri Cai, Yan Zhu, Yoan Léger, Nicolas Bertru, Jinshi Zhao, Charles Cornet   +9 more
wiley   +1 more source