Two-stage Laser Thermal Processing of Nanoparticle Inks on Flexible Substrates for High Performance Electronics

2011 ◽  
Vol 1340 ◽  
Author(s):  
Michael H. Willemann ◽  
Michael O. Thompson
Keyword(s):  
Zinc Oxide ◽  
High Temperature ◽  
High Performance ◽  
Laser Annealing ◽  
Semiconductor Film ◽  
Flexible Substrates ◽  
Active Devices ◽  
Nanoparticle Inks ◽  
Laser Thermal Processing ◽  
Nanoparticle Ink

ABSTRACTZinc oxide is a promising semiconductor film for active devices on flexible substrates, and synthesis routes using nanoparticle inks enable greater variety of applications. We introduce and characterize a two-step transient laser annealing process to create fully densified zinc oxide films from nanoparticle ink precursors. A low temperature sub-millisecond calcining step to remove solvent and organic stabilizing ligands was followed by a high-temperature pulsed laser sintering step to form densified 50-100 nm thin films with resistivities of 10-1 to 10-3 Ω-cm. Film microstructures can be varied between crystalline and amorphous without significant film damage by adjusting the fluence of the high-temperature sintering step. These processes would be compatible with a variety of nanoparticle species, deposition methods, and patterning methods, including roll-to-roll processing paradigms.

Growth of c-plane and m-plane aluminium-doped zinc oxide thin films: epitaxy on flexible substrates with cubic-structure seeds

2020 ◽  
Vol 76 (2) ◽  
pp. 233-240
Author(s):  
Yongkuan Li ◽  
Xinxing Liu ◽  
Dan Wen ◽  
Kai Lv ◽  
Gang Zhou ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Indium Tin Oxide ◽  
High Performance ◽  
Lattice Mismatch ◽  
Optoelectronic Devices ◽  
Flexible Substrates ◽  
Glass Substrates ◽  
Electrical Polarity ◽  
Cubic Structure ◽  
Tin Oxide Films

Manufacturing high-quality zinc oxide (ZnO) devices demands control of the orientation of ZnO materials due to the spontaneous and piezoelectric polarity perpendicular to the c-plane. However, flexible electronic and optoelectronic devices are mostly built on polymers or glass substrates which lack suitable epitaxy seeds for the orientation control. Applying cubic-structure seeds, it was possible to fabricate polar c-plane and nonpolar m-plane aluminium-doped zinc oxide (AZO) films epitaxially on flexible Hastelloy substrates through minimizing the lattice mismatch. The growth is predicted of c-plane and m-plane AZO on cubic buffers with lattice parameters of 3.94–4.63 Å and 5.20–5.60 Å, respectively. The ∼80 nm-thick m-plane AZO film has a resistivity of ∼11.43 ± 0.01 × 10−4 Ω cm, while the c-plane AZO film shows a resistivity of ∼2.68 ± 0.02 × 10−4 Ω cm comparable to commercial indium tin oxide films. An abnormally higher carrier concentration in the c-plane than in the m-plane AZO film results from the electrical polarity along the c-axis. The resistivity of the c-plane AZO film drops to the order of 10−5 Ω cm at 500 K owing to the semiconducting behaviour. Epitaxial AZO films with low resistivities and controllable orientations on flexible substrates offer optimal transparent electrodes and epitaxy seeds for high-performance flexible ZnO devices.

Laser Thermal Processing of Nanowires

2007 ◽  
Author(s):  
Nipun Misra ◽  
Yaoling Pan ◽  
Costas P. Grigoropoulos
Keyword(s):  
Silicon Nanowires ◽  
Flexible Electronics ◽  
Thermal Processing ◽  
High Performance ◽  
Flexible Substrates ◽  
New Paradigm ◽  
Plastic Substrates ◽  
Numerical Predictions ◽  
Nanoscale Electronics ◽  
Laser Thermal Processing

Semiconductor nanowires offer an alternative bottom-up route for nanoscale electronics and photonics application. The possibility of combining nanowires with cheap flexible substrates in the form of nanowire thin-films or composite materials composed of nanowires has opened up a new paradigm for inorganic semiconductor based technologies on flexible substrates. Recently, thin film transistors have been fabricated on plastic substrates based on this technique. This paper discusses laser thermal processing of nanowires as an alternative to conventional thermal processing. Ultra-short pulsed lasers allow for localized energy deposition into nanowires and can therefore enable thermal processing of nanowires on sensitive substrates such as plastics. Laser-based annealing of ion-implanted silicon nanowires is investigated for application in high performance flexible electronics. The efficacy of laser processing is examined through studies of the effect of number of pulses and incident fluence levels on conductance of the nanowires. Finally, numerical predictions of the absorption in the nanowires are presented.

ARMCO PH 13-8Mo

Alloy Digest ◽  
1990 ◽  
Vol 39 (2) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Physical Properties ◽  
Stress Corrosion ◽  
Tensile Properties ◽  
High Performance ◽  
High Strength ◽  
Heat Treating ◽  
Temperature Performance

Abstract ARMCO PH 13-8Mo is designed for high-performance applications requiring high strength coupled with excellent resistance to corrosion and stress corrosion. It has excellent toughness, good transverse properties and excellent forgeability. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on low and high temperature performance, and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-224. Producer or source: Baltimore Specialty Steels Corporation. Originally published May 1969, revised February 1990.

INCOLOY ALLOY 864

Alloy Digest ◽  
1998 ◽  
Vol 47 (2) ◽  
Keyword(s):  
Corrosion Resistance ◽  
High Temperature ◽  
Mechanical Strength ◽  
High Performance ◽  
Exhaust System ◽  
Good Combination ◽  
Fatigue Properties ◽  
Temperature Performance ◽  
Incoloy Alloy ◽  
Oxidation And Corrosion

Abstract Incoloy Alloy 864 is a high performance alloy developed specifically for automotive exhaust system flexible couplings and other exhaust applications. The alloy has a good combination of oxidation and corrosion resistance, with good mechanical strength, stability, and fatigue properties. This datasheet provides information on composition, physical properties, and elasticity. It also includes information on high temperature performance and corrosion resistance as well as joining. Filing Code: SS-708. Producer or source: Inco Alloys International Inc.

HITACHI METALS SLD-MAGIC

Alloy Digest ◽  
2020 ◽  
Vol 69 (10) ◽  
Keyword(s):  
High Temperature ◽  
Physical Properties ◽  
Tool Steel ◽  
High Performance ◽  
Cold Work ◽  
Heat Treating ◽  
Temperature Performance ◽  
Mold Fabrication ◽  
Cold Work Tool Steel

Abstract Hitachi Metals SLD-Magic is a high-performance alloy cold-work tool steel that is characterized by improved mold lifespan and easy mold fabrication. This datasheet provides information on composition, physical properties, hardness, elasticity as well as fatigue. It also includes information on low and high temperature performance as well as heat treating, machining, and joining. Filing Code: TS-802. Producer or source: Hitachi Metals Ltd.

Use of activated carbon to remove undesirable residual amylase from refinery streams

2017 ◽  
pp. 96-103 ◽  
Author(s):  
Gillian Eggleston ◽  
Isabel Lima ◽  
Emmanuel Sarir ◽  
Jack Thompson ◽  
John Zatlokovicz ◽  
...  
Keyword(s):  
Activated Carbon ◽  
High Temperature ◽  
High Performance ◽  
Activated Carbons ◽  
Amylase Activity ◽  
Sugar Industry ◽  
End User ◽  
Customer Complaints ◽  
Carry Over ◽  
Very High

In recent years, there has been increased world-wide concern over residual (carry-over) activity of mostly high temperature (HT) and very high temperature (VHT) stable amylases in white, refined sugars from refineries to various food and end-user industries. HT and VHT stable amylases were developed for much larger markets than the sugar industry with harsher processing conditions. There is an urgent need in the sugar industry to be able to remove or inactivate residual, active amylases either in factory or refinery streams or both. A survey of refineries that used amylase and had activated carbon systems for decolorizing, revealed they did not have any customer complaints for residual amylase. The use of high performance activated carbons to remove residual amylase activity was investigated using a Phadebas® method created for the sugar industry to measure residual amylase in syrups. Ability to remove residual amylase protein was dependent on the surface area of the powdered activated carbons as well as mixing (retention) time. The activated carbon also had the additional benefit of removing color and insoluble starch.

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