Results 41 to 50 of about 947,691 (350)

Femtosecond Single‐ and Double‐Pulse Fabrication of Periodic Nanostructures on Stainless Steel for Surface‐Enhanced Raman Spectroscopy

Advanced Engineering Materials, EarlyView.
Periodic submicron features are fabricated on 304 stainless steel using single and double femtosecond laser pulses. By adjusting polarization, fluence, and inter‐pulse delay, 1D and 2D nanostructures are formed. Enhanced hydrophobicity and dense surface‐enhanced Raman spectroscopy hotspots enable analyte detection down to 10−10 M with good ...
Balaji Baskar, Atiqul Islam Ahad, Carla Berrospe‐Rodriguez, Guillermo Aguilar   +3 more
wiley   +1 more source

Controlling lithium cobalt oxide phase transition using molten fluoride salt for improved lithium-ion batteries

Communications Materials
LiCoO2 is a historic lithium-ion battery cathode that continues to be used today because of its high energy density. However, the practical capacity of LiCoO2 is limited owing to the harmful phase transition at high voltages, which prevents the ...
Mayumi Mikami, Jo Saito, Teruaki Ochiai, Masahiro Takahashi, Tatsuyoshi Takahashi, Yohei Momma, Kazutaka Kuriki, Rihito Wada, Kazune Yokomizo, Genki Kobayashi, Shinichi Komaba, Shunpei Yamazaki   +11 more
doaj   +1 more source

Dislocation‐Mediated Thermoelectric Performance and Mechanical Behavior

Advanced Engineering Materials, EarlyView.
Dislocations can scatter phonons to reduce thermal conductivity, thereby enhance thermoelectric performance. However, dislocations also impact mechanical properties, leading to increased brittleness and altered plasticity. It is essential to clarify the complex relationship between dislocations, thermal transport, and mechanical stability to achieve a ...
Bangzhi Ge, Yuan Yu, Chongjian Zhou
wiley   +1 more source

Thermocouple for heating and cooling of memory metal actuators [PDF]

, 1988
A semiconductor thermocouple unit is provided for heating and cooling memory metal actuators. The semiconductor thermocouple unit is mounted adjacent to a memory metal actuator and has a heat sink attached to it.
Wood, Charles
core   +1 more source

Synthesis, Structure, Photoluminescence, Energy Transfer Mechanism and Band Gap of a Terbium-Mercury Complex with a 3-D Framework

Acta Chimica Slovenica, 2018
A novel terbium-mercury compound [Tb(IA)3(H2O)2(Hg2Cl4)]n·nHgCl2·nH2O (1, HIA = isonicotinic acid) was prepared via a hydrothermal reaction and structurally characterized through single-crystal X-ray diffraction technique.
Wei-Sheng Lin, Wen-Tong Chen, Han-Mao Kuang, Hui Luo   +3 more
doaj   +1 more source

Fabrication of Er3+/Yb3+ Co-Doped Bi5O7I Microsphere With Upconversion Luminescence and Enhanced Photocatalytic Activity for Bisphenol A Degradation

Frontiers in Chemistry, 2020
Er3+/Yb3+ co-doped Bi5O7I uniform porous microsphere photocatalysts were synthesized by a two-step chemical method, which possesses excellent photocatalytic performance and upconversion luminescence property.
Baowei Cao, Siwen Gong, Siyaka Mj Zubairu, Lingna Liu, Yunhua Xu, Lei Guo, Rui Dang, Gangqiang Zhu, Gangqiang Zhu   +8 more
doaj   +1 more source

Review on the ionizing irradiation preparation of semiconductor CdS fluorescent quantum dots

Fushe yanjiu yu fushe gongyi xuebao, 2021
Semiconductor CdS fluorescent quantum dots (QDs) have been widely studied for their excellent optical and electrical properties. There are many mature preparation methods of CdS QDs have been developed.
ZHAO Yuan, SONG Xiaofang, YANG Jinyu, WANG Yayang, LIU Dongliang, RAO Lu, LI Yuesheng   +6 more
doaj   +1 more source

Optimized Strategy for Fabricating High‐Aspect‐Ratio Periodic Structures Over Large Areas Using ps‐Direct Laser Interference Patterning

Advanced Engineering Materials, EarlyView.
Picosecond direct laser interference patterning (DLIP) enables precise microstructure fabrication on stainless steel. Using a multiscan approach, high‐aspect‐ratio patterns are achieved. Fluence influences structure growth and homogeneity, with smaller periods yielding better uniformity.
Fabian Ränke, Marcelo Sallese, Marcos Soldera, Ignacio Tabares, Flavio Soldera, Andrés Fabián Lasagni   +5 more
wiley   +1 more source

Overview of metal contacts technology on semiconductor [PDF]

, 2019
Over the past decades, researcher confronts new difficulties and breakthrough due to semiconductor innovation and these chances are evident in the endeavours that have been laid by semiconductor and optoelectronic devices.
Ali, Ahmad Hadi, Bhari, Bibi Zulaika
core   +1 more source

Sol–Gel Synthesis of Ca2.5Ag0.3Sm0.2Co4O9 Semiconducting Materials for Thermoelectric Applications in Aerospace Systems

Advanced Engineering Materials, EarlyView.
Ca2.5Ag0.3Sm0.2Co4O9 semiconductor materials are synthesized and produced in this study using the sol–gel and cold pressing techniques for thermoelectric generator applications. As template samples are added, the Seebeck coefficient and power factor values rise, peaking at 800 °C for Ca2.5Ag0.3Sm0.2Co4O9 at 274.47 μV K−1 and 0.58 mW mK−2, respectively.
Enes Kilinc, Fatih Uysal, Mucahit Abdullah Sari, Huseyin Kurt, Erdal Celik   +4 more
wiley   +1 more source