Results 71 to 80 of about 2,429 (259)

Tribology Performance of Surface Texturing Plunger

Biomimetics, 2019
Plunger pumps are widely used in oil pumping units around the world. The water content of the wellbore is increasing along with the development progress, so the lubricating capacity of the well fluids between the plunger and barrel is decreasing ...
Songbo Wei, Hongfei Shang, Chenglong Liao, Junyuan Huang, Bairu Shi   +4 more
doaj   +1 more source

Imaging the Thickness‐Dependent Formation of Schottky Barriers in Metal–Semiconductor van der Waals Heterostructures

Advanced Functional Materials, EarlyView.
Using nanobeam photoemission, we demonstrate imaging of the in‐plane and out‐of‐plane electric field landscape within a metal–semiconductor van der Waals heterostructure. We provide evidence for Schottky barrier formation that depends on the semiconductor thickness. ABSTRACT Achieving high‐performance optoelectronic devices based on two‐dimensional van
Dario Mastrippolito, Mariarosa Cavallo, Marco Paye, Clement Gureghian, Albin Colle, Jiho Roh, Dipak Maity, Clemence Villefroy, Erwan Dandeu, Herve Cruguel, Stephane Lorcy, Marie Hervé, James K. Utterback, Pavel Dudin, Johan Biscaras, José Avila, Emmanuel Lhuillier, Debora Pierucci   +17 more
wiley   +1 more source

Solution‐Processed Mn‐Doped 2d Perovskite Wavelength Shifters for Noble‐Liquid Photon Detection

Advanced Functional Materials, EarlyView.
Solution‐processed Mn2+‐doped PEA2PbBr4 two‐dimensional perovskite films are demonstrated as large‐area wavelength shifters for noble‐liquid photon detectors. Mn2+ incorporation introduces a broad emission band at ∼620 nm with a large Stokes shift, suppressing self‐absorption and matching SiPM sensitivity.
Elisabetta Colantoni, Laura Basiricò, Andrea Ciavatti, Nicolò Tosi, Valentina Cicero, Massimo Loriggiola, Beatrice Fraboni   +6 more
wiley   +1 more source

Enhancing heat transfer at low temperatures by laser functionalization of the inner surface of metal pipes

Scientific Reports
The latent heat transfer during vapour condensation in the condenser section of passive heat transport devices such as the two-phase closed thermosiphon is limited by film condensation.
Daniel Holder, Alexander Peter, Marc Kirsch, Sergio Cáceres, Rudolf Weber, Volkher Onuseit, Rudi Kulenovic, Jörg Starflinger, Thomas Graf   +8 more
doaj   +1 more source

Light‐Induced Field‐Tunneling Synapses in Solution‐Processed Van Der Waals Heterostructures for Scalable, Retina‐Inspired Optical Sensing

Advanced Functional Materials, EarlyView.
A scalable, solution‐processed WSe2/ZrO2‐x van der Waals heterostructure realizes a light‐induced field‐tunneling synapse (LIFTS) that activates exclusively under bright illumination, emulating the photopic adaptation of the human retina at the device level.
Kijeong Nam, Jihyun Kim, Soobeen Ji, In Soo Kim, Sejin Kim, Eungseon Yeon, Do Kyung Hwang, Iva Plutnarová, Zdeněk Sofer, Sang Min Won, Joohoon Kang   +10 more
wiley   +1 more source

Laser-induced texturing: A sustainable approach to self-cleaning mechanisms in solar panel

Cleaner Engineering and Technology
This review paper discusses the application of laser surface texturing as a novel approach for inducing self-cleaning properties in solar panels, with a particular focus on glass surfaces. Despite the limitation in literature on this specific topic, this
Rahool Rai, Mahadzir Ishak, Aiman Bin Mohd Halil, M.M. Quazi, Sudhakar Kumarasamy   +4 more
doaj   +1 more source

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

Advanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong, You Zhou, Qingxiu Li, Wenyu Zhao, Sunyingyue Geng, Hangfei Li, Yan‐Bing Leng, Shirui Zhu, Guanglong Ding, Yongbiao Zhai, Ziyu Lv, Ye Zhou, Su‐Ting Han   +12 more
wiley   +1 more source

Fibre Laser Texturing for Surface Functionalization

Physics Procedia, 2013
AbstractTextured surfaces exhibit improved properties in terms of tribological, biological, optical, or wetting performance once the texture is opportunely tailored for purpose. Fibre lasers provide a flexible solution for texturing different materials with different surface structures.
DEMIR, ALI GOKHAN, MARESSA, PIETRO, PREVITALI, BARBARA   +2 more
openaire   +2 more sources

Laser Texturing of Tungsten Carbide (WC-Co): Effects on Adhesion and Stress Relief in CVD Diamond Films

Surfaces
This study proposes a laser texturing method to optimize adhesion and minimize residual stresses in CVD diamond films deposited on tungsten carbide (WC-Co).
Argemiro Pentian Junior, José Vieira da Silva Neto, Javier Sierra Gómez, Evaldo José Corat, Vladimir Jesus Trava-Airoldi   +4 more
doaj   +1 more source

Role of Liquid Composition in the Transient Liquid Assisted Growth of Superconducting YBa2Cu3O7‐δ Films

Advanced Materials, EarlyView.
The Y supersaturation in the [Ba‐Cu(I/II)‐O] transient liquid composition is the driving force toward YBCO nucleation and growth in TLAG. Tuning the initial (Ba:Cu) molar ratio in the ink composition determines the YBCO epitaxial nucleation through supersaturation control.
Lavinia Saltarelli, Diana García, Laia Soler, Elzbieta Pach, Kapil Gupta, Daniel Sanchez‐Rodriguez, Jordi Aguilar, Víctor Fuentes, Eduardo Solano, Cristian Mocuta, Jordi Farjas, Xavier Obradors, Teresa Puig   +12 more
wiley   +1 more source