Results 61 to 70 of about 30,490 (251)

Photoinduced 3D orientational order in side chain liquid crystalline azopolymers

, 2003
We apply experimental technique based on the combination of methods dealing with principal refractive indices and absorption coefficients to study the photoinduced 3D orientational order in the films of liquid crystalline (LC) azopolymers.
A. Böhme, A. D. Kiselev, A. Dyadyusha, A. Kanazawa, A. Kiselev, A. Natansohn, A. Natansohn, A. Osman, A. Petry, A.D. Kiselev, B.S. Neporent, C. Eisenbach, C.S. Paik, D.W. Berreman, F. Weigert, G.A. Puchkovs’ka, I. Mita, J. Kelly, J. Lindau, L. Blinov, L.-C. Chien, L.M. Blinov, M. Dumont, M. Dumont, M. Eich, M. Phaadt, N.C.R. Holme, O. V. Yaroshchuk, O. Yaroshchuk, O. Yaroshchuk, O. Yaroshchuk, O.V. Yaroshchuk, S. Hvilsted, S. Sajti, T. Bidna, T. Buffeteau, T. Fisher, T. Todorov, T.A. Sergan, T.G. Pedersen, T.G. Pedersen, U. Wiesner, V. Cimrova, W. Feng, Y. Zakrevskyy, Yu. Zakrevskyy   +45 more
core   +1 more source

Atomic Layer Deposition in Transistors and Monolithic 3D Integration

Advanced Functional Materials, EarlyView.
Transistors are fundamental building blocks of modern electronics. This review summarizes recent progress in atomic layer deposition (ALD) for the synthesis of two‐dimensional (2D) metal oxides and transition‐metal dichalcogenides (TMDCs), with particular emphasis on their enabling role in monolithic three‐dimensional (M3D) integration for next ...
Yue Liu, Taoyu Zou, Cheng‐Yan Xu, Liang Zhen, Yang Li, Yong‐Young Noh   +5 more
wiley   +1 more source

Kinetics of photoinduced matter transport driven by intensity and polarization in thin films containing azobenzene [PDF]

, 2012
We investigate the kinetics of photoinduced deformation phenomena in azobenzene-containing thin solid films. We show that a light intensity pattern and a light polarization pattern produce two distinct material transport processes whose direction and ...
FABBRI, FILIPPO, J. P. Boilot, J. Peretti, K. Lahlil, MONACO, Salvatore, Y. Lassailly   +5 more
core   +1 more source

Temporally Delayed Deployment of Photo‐Responsive Liquid Crystal Polymer Networks Toward Neural Interfaces

Advanced Healthcare Materials, EarlyView.
Deployable medical devices typically need external stimuli to trigger deployment. However, external stimuli are difficult to supply within tissues. Here, we describe a strategy to deploy small‐scale structures into soft tissues after insertion without the need for any stimulus. We demonstrate deployment within a tissue phantom.
Yeh‐Chia Tseng, Eleanor Nguyen Jeakle, Mahjabeen Javed, Rajasree Gopala Krishnan, Thomas J. Smith, Yoo Jin Lee, Sahana Dhananjayan, Sasha M. George, Manivannan Sivaperuman Kalairaj, Ali Hasan Zuaiter, Majed O. Althumayri, Hatice Ceylan Koydemir, Joseph J. Pancrazio, Taylor H. Ware   +13 more
wiley   +1 more source

Silicon-based molecular switch junctions [PDF]

, 2009
In contrast to the static operations of conventional semiconductor devices, the dynamic conformational freedom in molecular devices opens up the possibility of using molecules as new types of devices such as a molecular conformational switch or for ...
Cuniberti, Gianaurelio, Nozaki, Daijiro
core   +2 more sources

Photochemical Fuel Carrier Molecules for Robotic Embodied Energy

Advanced Materials, EarlyView.
We designed a novel fuel carrier photoresponsive molecule for on‐demand energy storage and release. Carrier molecules undergo bond scission under UV light to release chemical fuel and locally generate propulsive Marangoni flows. We demonstrate this photochemical embodied energy strategy in small‐scale robots and active matter systems, enabling ...
Chuqi Huang, Songah Jeong, Ji Woo Kim, Kanyarat Mantala, Zenghao Zhang, Hyungwoo Kim, Abdon Pena‐Francesch   +6 more
wiley   +1 more source

Monitoring cis-to-trans isomerization of azobenzene using Brillouin microscopy

JPhys Photonics
Brillouin spectroscopy is commonly used to study the acoustic properties of materials. Here we explored its feasibility in studying the photoinduced isomerization of azobenzene.
Zhe Wang, Qiyang Jiang, Chantal Barwig, Ankit Mishra, Krishna Ramesh, Christine Selhuber-Unkel   +5 more
doaj   +1 more source

Development of LCEs with 100% Azobenzene Moieties: Thermo-Mechanical Phenomena and Behaviors

Micromachines, 2022
Azobenzene is one of the most investigated photo-responsive liquid crystalline molecules. It can isomerize between two different isoforms, trans (E) and cis (Z) configurations, when stimulated by light.
Domenico Sagnelli, Massimo Rippa, Amalia D’Avino, Ambra Vestri, Valentina Marchesano, Lucia Petti   +5 more
doaj   +1 more source

Depth Profile of Optically Recorded Patterns in Light-Sensitive Liquid Crystal Elastomers

, 2011
We investigated nonlinear absorption and photobleaching processes in a liquid crystal elastomer (LCE) doped with light-sensitive azobenzene moiety.
Ambrožič, Gabriela, Domenici, Valentina, Drevenšek-Olenik, Irena, Fally, Martin, Gregorc, Marko, Zalar, Boštjan, Čopič, Martin   +6 more
core   +1 more source

Halogen bonding enhances nonlinear optical response in poled supramolecular polymers [PDF]

, 2015
We demonstrate that halogen bonding strongly enhances the nonlinear optical response of poled supramolecular polymer systems. We compare three nonlinear optical chromophores with similar electronic structures but different bond-donating units, and show ...
Forni A., Kauranen M., Metrangolo P., Priimagi A., Resnati G., Saccone M., Tuominen O., Virkki M.   +7 more
core   +1 more source