Antireflective copper surfaces fabricated by low-cost nanosecond lasers for efficient photothermal conversion and desalination

2019 ◽  
Vol 31 (2) ◽  
pp. 022506
Author(s):  
Zhijian He ◽  
Xiaozhu Xie ◽  
Jiangyou Long
Keyword(s):  
Low Cost ◽  
Copper Surfaces ◽  
Photothermal Conversion ◽  
Nanosecond Lasers

A low-cost and reusable photothermal membrane for solar-light induced anti-bacterial regulation

2019 ◽  
Vol 7 (18) ◽  
pp. 2948-2953 ◽  
Author(s):  
Qianhao Pan ◽  
Shiming Zhang ◽  
Ruiting Li ◽  
Yonglin He ◽  
Yapei Wang
Keyword(s):  
Low Cost ◽  
Solar Light ◽  
Photothermal Conversion

In this work, a simple, low-cost, and applicable strategy for preparing membranes which allow photothermal conversion and have excellent anti-bacterial ability is proposed.

Low cost electroless nickel black coatings for photothermal conversion

1980 ◽  
Vol 3 (4) ◽  
pp. 519-532 ◽  
Author(s):  
S.N. Kumar ◽  
L.K. Malhotra ◽  
K.L. Chopra
Keyword(s):  
Low Cost ◽  
Electroless Nickel ◽  
Photothermal Conversion

Formation mechanism of hierarchical Micro- and nanostructures on copper induced by low-cost nanosecond lasers

2019 ◽  
Vol 464 ◽  
pp. 412-421 ◽  
Author(s):  
Jiangyou Long ◽  
Zuo Cao ◽  
Chaohui Lin ◽  
Caixia Zhou ◽  
Zhijian He ◽  
...  
Keyword(s):  
Formation Mechanism ◽  
Low Cost ◽  
Nanosecond Lasers

scholarly journals Design and optimization of solar steam generation system for water purification and energy utilization: A review

2019 ◽  
Vol 58 (1) ◽  
pp. 226-247 ◽  
Author(s):  
You Xu ◽  
Jiacheng Yin ◽  
Jun Wang ◽  
Xianbao Wang
Keyword(s):  
Low Cost ◽  
Systematic Investigation ◽  
Energy Utilization ◽  
Steam Generation ◽  
Generation System ◽  
Photothermal Conversion ◽  
Design And Optimization ◽  
Conversion System ◽  
Solar Steam Generation ◽  
Selection Of

AbstractSolar steam generation with low-cost and excellent energy efficiency is of great significance for alleviating an energy crisis, reducing water pollution and promoting seawater desalination. However, there are still numerous challenges for solar steam generation system to practical energy utilization. In this review, based on our previous research, we summarize various methods of solar steam generation, photothermal conversion mechanism and efficiency. We studied a series of effecting factors for solar steam generation. Our systematic investigation provided a clearer understanding of how to design and optimize the photothermal conversion system to improve the steam generation rate and energy conversion rate, including improving light absorption, reducing heat loss, and optimizing water supply. This article aims to make a comprehensive review of present solar steam technology, so that people can better apply photothermal conversion technology. Meanwhile, it also provides a route for the selection of photothermal materials, the design and optimization of the photothermal conversion system.

scholarly journals Preparation of Near-Infrared/Photoacoustic Dual-Mode Imaging and Photothermal/Chemo Synergistic Theranostic Nanoparticles and Their Imaging and Treating of Hepatic Carcinoma

2021 ◽  
Vol 11 ◽  
Author(s):  
Yun Zhou ◽  
Bixia Lin ◽  
Kai Li ◽  
Yufeng Zhao ◽  
Zhuo Sun ◽  
...  
Keyword(s):  
Colloidal Stability ◽  
Near Infrared ◽  
Photoacoustic Imaging ◽  
Low Cost ◽  
Functional Materials ◽  
Hepatic Carcinoma ◽  
Dual Mode ◽  
Photothermal Conversion ◽  
Theranostic Nanoparticles

At present, the clinical diagnosis of and treatment methods for hepatic carcinoma still fail to fully meet the needs of patients. The integrated theranostic system, in which functional materials are used to load different active molecules, created a new developmental direction for the combination treatment of hepatic carcinoma, realizing the synchronization of diagnosis and treatment. In this study, polydopamine (PDA), which has the functions of self-assembly, encapsulation, photothermal conversion, and photoacoustic interaction, was used as the carrier material. The IR780, a near-infrared fluorescence imaging (NIFI), photoacoustic imaging (PAI), and photothermal therapy (PTT) agent, and paclitaxel (PTX), a broad-spectrum chemotherapy drug, were selected to build the NIF/PA dual-mode imaging and PTT/chemo synergistic theranostic nanoparticles (DIST NPs). The DIST NPs have a 103.4 ± 13.3 nm particle size, a weak negative charge on the surface, good colloidal stability, slow and controlled drug release, and high photothermal conversion ability. The experiments results showed that the DIST NPs have a long circulation in vivo, high bioavailability, high biocompatibility, and low effective dose. DIST NPs showed an excellent NIFI/PAI dual-mode imaging and significant synergistic antitumor effect in hepatic carcinoma models. DIST NPs met the initial design requirements. A set of fast and low-cost preparation methods was established. This study provides an experimental basis for the development of new clinical theranostic methods for hepatic carcinoma.

A new approach to low cost large area selective surfaces for photothermal conversion

1979 ◽  
Vol 3 (4) ◽  
pp. 371-377 ◽  
Author(s):  
B. K. Gupta ◽  
F. K. Tiwari ◽  
O. P. Agnihotri ◽  
S. S. Mathur
Keyword(s):  
Low Cost ◽  
Large Area ◽  
New Approach ◽  
Photothermal Conversion

Preparation and properties of polyurethane film with photothermal conversion and energy storage capability

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Lihong Bao ◽  
Suyi Cao ◽  
Lin Tu
Keyword(s):  
Molecular Weight ◽  
Energy Storage ◽  
Visible Light ◽  
Mechanical Performance ◽  
Low Cost ◽  
Light Trapping ◽  
Surface Finishing ◽  
Content Type ◽  
Photothermal Conversion ◽  
Flexible Polyurethane

Purpose This paper aims to provide a flexible polyurethane (PU) film with visible light trapping ability, photothermal conversion and energy storage performance by covalently bonded a visible light absorbing dye into the polymer through copolymerization. Design/methodology/approach For this target solution copolymerization of diphenyl-methane-diisocyanate (MDI), poly(1,4-butylene adipate) (PBA2000), polyethylene glycol (PEG) of different molecular weight, self-made dye, 1,4-butanediol (BuOH) was carried out in a flame-dried flask under an inert nitrogen (N2) atmosphere. First, an isocyanate-terminated prepolymer of dried PEG, MDI and PBA2000 was prepared in dimethylformamide and stirred for 1 h at 35°C. Then, self-made dye and 1, 4-butanediol (BuOH) were added and heated at 85°C for 3 h to get photothermal conversion polyurethane (PTPU) solution. Allowed the solution to dry at room temperature for seven days and then at 65°C for 12 h to get PTPU films. Findings The flexible PU films with photothermal conversion and energy storage performances were successfully synthesized and the functional films presented both excellent energy storage and mechanical property when the molecular weight of PEG was in the range of 6,000∼10,000. Research limitations/implications The materials that were used in this research paper had a reasonably low cost. Also, the procedures for the synthesis of dye and polymers were extremely easy because there was no need for high pressure or temperature and no dangerous solvents were used. Practical implications The photothermal conversion property and mechanical performance of the synthesized flexible PU films were characterized. The results have proved that these films were soft and elastic, and have certain photothermal conversion and energy storage ability, thus can be used in the surface finishing of special fabric and leather. Originality/value Visible light trapping photothermal conversion PU flexible film with energy storage capability was prepared for the first time.

High Performance Anisotropic Conductive Adhesives Using Copper Particles With an Anti-Oxidant Coating Layer

2010 ◽  
Vol 132 (1) ◽  
Author(s):  
Myung Jin Yim ◽  
Yi Li ◽  
Kyoung Sik Moon ◽  
C. P. Wong
Keyword(s):  
Thermal Stability ◽  
Coupling Agent ◽  
High Performance ◽  
Low Cost ◽  
Particle Surface ◽  
Surface Characteristics ◽  
Conductive Adhesives ◽  
Element Analysis ◽  
Copper Surfaces ◽  
Thermal Stability Of

This paper describes the development and characterization of anisotropically conductive films (ACFs) incorporated with copper (Cu) particles as electrically conductive fillers for environmentally friendly, low cost, high electrical, and high thermal interconnect applications in microelectronics packaging. The Cu particle surface modification by a coupling agent and its effects on the electrical conductivity and thermal stability of Cu-filled ACF joints were investigated for the potential alternatives of conventional Au-coated polymer and Au-coated Ni-filled ACFs. The surface characteristics of a thin film of the coupling agent on copper surfaces such as element analysis, their hydrophobicity, and thermal stability were evaluated. The treated Cu ball-filled ACF showed the lowest contact resistance 1.0×10−5 Ω, higher current carrying capability, and higher thermal stability of ACF joints compared with the conventional Au-coated polymer ball and Au-coated Ni ball-filled anisotropically conductive adhesives.

Decomposition of the metastable beta titanium alloy Ti-15-3

1983 ◽  
Vol 41 ◽  
pp. 264-265
Author(s):  
Y. L. Chen ◽  
S. Fujlshiro
Keyword(s):  
Low Cost ◽  
High Strength ◽  
Alpha Phase ◽  
Thick Sheet ◽  
Omega Phase ◽  
Beta Titanium Alloy ◽  
Beta Titanium ◽  
Beta Matrix ◽  
Metastable Beta ◽  
Very High

Metastable beta titanium alloys have been known to have numerous advantages such as cold formability, high strength, good fracture resistance, deep hardenability, and cost effectiveness. Very high strength is obtainable by precipitation of the hexagonal alpha phase in a bcc beta matrix in these alloys. Precipitation hardening in the metastable beta alloys may also result from the formation of transition phases such as omega phase. Ti-15-3 (Ti-15V- 3Cr-3Al-3Sn) has been developed recently by TIMET and USAF for low cost sheet metal applications. The purpose of the present study was to examine the aging characteristics in this alloy.The composition of the as-received material is: 14.7 V, 3.14 Cr, 3.05 Al, 2.26 Sn, and 0.145 Fe. The beta transus temperature as determined by optical metallographic method was about 770°C. Specimen coupons were prepared from a mill-annealed 1.2 mm thick sheet, and solution treated at 827°C for 2 hr in argon, then water quenched. Aging was also done in argon at temperatures ranging from 316 to 616°C for various times.

Chromic Acid Etching of Polyethylene

1973 ◽  
Vol 31 ◽  
pp. 72-73
Author(s):  
J. D. Muzzy ◽  
R. D. Hester ◽  
J. L. Hubbard
Keyword(s):  
Chromic Acid ◽  
Low Cost ◽  
Acid Etching ◽  
Crystalline Morphology ◽  
Bulk Specimen ◽  
Morphological Studies ◽  
Perfect Form ◽  
Molecular Length ◽  
Lamellar Texture ◽  
Cost Studies

Polyethylene is one of the most important plastics produced today because of its good physical properties, ease of fabrication and low cost. Studies to improve the properties of polyethylene are leading to an understanding of its crystalline morphology. Polyethylene crystallized by evaporation from dilute solutions consists of thin crystals called lamellae. The polyethylene molecules are parallel to the thickness of the lamellae and are folded since the thickness of the lamellae is much less than the molecular length. This lamellar texture persists in less perfect form in polyethylene crystallized from the melt.Morphological studies of melt crystallized polyethylene have been limited due to the difficulty of isolating the microstructure from the bulk specimen without destroying or deforming it.

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