Analysis of the drying process for precursors of Cu2ZnSn(S,Se)4 layers by low cost non vacuum fabrication technique

Solar Energy ◽  
2021 ◽  
Vol 224 ◽  
pp. 992-999
Author(s):  
Prabeesh Punathil ◽  
Solidea Zanetti ◽  
Elisa Artegiani ◽  
Vikash Kumar ◽  
Alessandro Romeo
Keyword(s):  
Low Cost ◽  
Fabrication Technique ◽  
Drying Process

scholarly journals Optimization of a Handwriting Method by an Automated Ink Pen for Cost-Effective and Sustainable Sensors

Chemosensors ◽  
2021 ◽  
Vol 9 (9) ◽  
pp. 264
Author(s):  
Florin C. Loghin ◽  
José F. Salmerón ◽  
Paolo Lugli ◽  
Markus Becherer ◽  
Aniello Falco ◽  
...  
Keyword(s):  
Printed Electronics ◽  
Low Cost ◽  
Electronic Devices ◽  
Cost Effective ◽  
Capacitive Sensor ◽  
Fabrication Technique ◽  
Rfid Tag ◽  
Environmental Friendly ◽  
Fast Prototyping ◽  
Do It Yourself

In this work, we present a do-it-yourself (DIY) approach for the environmental-friendly fabrication of printed electronic devices and sensors. The setup consists only of an automated handwriting robot and pens filled with silver conductive inks. Here, we thoroughly studied the fabrication technique and different optimized parameters. The best-achieved results were 300 mΩ/sq as sheet resistance with a printing resolution of 200 µm. The optimized parameters were used to manufacture fully functional electronics devices: a capacitive sensor and a RFID tag, essential for the remote reading of the measurements. This technique for printed electronics represents an alternative for fast-prototyping and ultra-low-cost fabrication because of both the cheap equipment required and the minimal waste of materials, which is especially interesting for the development of cost-effective sensors.

scholarly journals Lab-level and low-cost fabrication technique for polymer based micro-optical elements and holographic structures

2015 ◽  
Author(s):  
Maik Rahlves ◽  
Maher Rezem ◽  
Christian Kelb ◽  
Kristian Boroz ◽  
Dina Gödeke ◽  
...  
Keyword(s):  
Low Cost ◽  
Fabrication Technique ◽  
Optical Elements

Technology of Low Cost Production of FGMs

2005 ◽  
Vol 492-493 ◽  
pp. 761-764 ◽  
Author(s):  
Katsuto Kisara ◽  
Masayuki Niino ◽  
Hironori Noguchi
Keyword(s):  
Research And Development ◽  
Production Technology ◽  
Induction Heating ◽  
Mass Production ◽  
Low Cost ◽  
Production Technique ◽  
Drying Process ◽  
Graded Layers ◽  
Sintering Method ◽  
Sps Sintering

In this paper, we introduced research and development of technology of low cost production of FGMs. This research is designated for development of mass production technology for production of ceramic wares with induction heating (IH) function. Slurry lamination method has advantage in forming graded layers due to its simplicity and easiness. However, this method has a disadvantage to generate cracks during drying process. Therefore, freeze-dry in vacuum was introduced in drying process of slurry lamination. By doing so, mass production could be achieved. In this trial production, we adopted SPS sintering method to production technique. In the future, we will further develop other applications of FGMs into industrial products.

scholarly journals Fabrication Technique for Bio-Composite Patch Repair on Laminated Structures of CFRP Plate

2014 ◽  
Vol 564 ◽  
pp. 366-371 ◽  
Author(s):  
M.K.H. Muda ◽  
Faizal Mustapha ◽  
K.D. Mohd Aris ◽  
Mohamed Thariq Hameed Sultan
Keyword(s):  
Mechanical Properties ◽  
Composite Structures ◽  
Mechanical Performance ◽  
Low Cost ◽  
Natural Fibre ◽  
Patch Repair ◽  
Fabrication Technique ◽  
Composite Surface ◽  
Wide Range ◽  
Laminated Structures

Laminated structures are assembled so that the fibre orientation provides most of desired mechanical properties and the matrix largely determines the environmental performance. Composites laminate structures are used in a wide range of applications in aerospace, marine, automotive, surface transport and sports equipment markets. Damage to composite components is not always visible to the naked eye and the extent of damage is best determined for structural components by suitable Non Destructive Test (NDT) methods. Alternatively the damaged areas can be located by simply tapping the composite surface and listening to the sound. The damaged areas give a dull response to the tapping, and the boundary between the good and damaged composite can easily be mapped to identify the area for repair. Awareness of and inspection for composite damage should be included in the regular maintenance schedules for composite structures. Particular attention would be made to areas which are more prone to damage. The repair can be done by using composite itself or bio-composite. Bio-composite is a reinforcement of natural fibre such as plant and a material that formed by matrix or resin. Then repairs to aircraft structures are controlled and should be carried out according to the Aircraft Structural Repair Manual (SRM). For other applications the repaired components would normally be expected to meet the original specifications and mechanical performance requirements. This paper presents the fabrication technique including patch repair by using bio-composite which is kenaf and its aim to give a general approach to composite fabrication on patch repair in all applications. Through the described approach, the life of the structure is expanded and met the properties requirements such as low cost, fairly good mechanical properties, high specific strength, non-abrasive, eco-friendly and bio-degradability characteristics.

scholarly journals On-Chip Integration of Pressure Plus 2-Axis (X/Z) Acceleration Composite TPMS Sensors with a Single-Sided Bulk-Micromachining Technique

Micromachines ◽  
2019 ◽  
Vol 10 (7) ◽  
pp. 473 ◽  
Author(s):  
Jiachou Wang ◽  
Fang Song
Keyword(s):  
Low Cost ◽  
Pressure Sensors ◽  
Silicon On Insulator ◽  
Automotive Electronics ◽  
Fabrication Technique ◽  
Front Side ◽  
Tire Pressure ◽  
Automobile Tire ◽  
Chip Size ◽  
On Chip

A novel on-chip integration of pressure plus 2-axis (X/Z) acceleration composite sensors for upgraded production of automobile tire pressure monitoring system (TPMS) is proposed, developed, and characterized. Herein, the X-axis accelerometer is with the cantilever beam-mass structure and is used for automatically identifying and positioning each of the four wheels. The IC-Foundry-Compatible low-cost batch fabrication technique of MIS (i.e., Micro-openings Inter-etch and Sealing) is employed to only fabricate the device from the front side of (111) silicon wafer, without double-sided micromachining, wafer bonding, complex Cavity-SOI (Silicon on Insulator) processing, and expensive SOI-wafer needed. Benefited from the single-wafer front-side fabrication technique on ordinary single-polished wafers, the fabricated composite TPMS sensor has the advantages of a small chip-size of 1.9 mm × 1.9 mm, low cross-talk interference, low-cost, and compatible process with IC-foundries. The fabricated pressure sensors, X-axis accelerometer and Z-axis accelerometer, show linear sensing outputs, with the sensitivities as about 0.102 mV/kPa, 0.132 mV/kPa, and 0.136 mV/kPa, respectively. Fabricated with the low-cost front-side MIS process, the fabricated composite TPMS sensors are promising in automotive electronics and volume production.

An Innovative Low-Cost Photomask Fabrication Technique

2016 ◽  
Vol 16 (9) ◽  
pp. 9751-9755
Author(s):  
Zhifu Yin ◽  
Lei Sun ◽  
Helin Zou
Keyword(s):  
Low Cost ◽  
Fabrication Technique

Micro/Meso Roll-to-Plate (R2P) Imprinting Process to Fabricate Micro Channel/Riblet Features

2012 ◽  
Vol 271-272 ◽  
pp. 611-616
Author(s):  
Zhao Yang Gao ◽  
Lin Fa Peng ◽  
Pei Yun Yi ◽  
Xin Min Lai
Keyword(s):  
Grain Size ◽  
Low Cost ◽  
Pure Copper ◽  
Metallic Surface ◽  
Fabrication Technique ◽  
Low Emission ◽  
Micro Channels ◽  
Process System ◽  
Mould Cavity ◽  
Flexible Fabrication

Functional metallic surface micro/meso structures such as micro channels/grooves or micro riblets have been increasingly applied in many fields, such as optics, tribology, fluid-dynamics and heat exchange or mass tranfer. Micro/meso forming has the potential of efficiently and economically fabricating functional microstructures over a large surface area. A mciro/meso roll-to-plate imprinting technique was proposed and the process system was self-developed. The pure copper specimens with various grains were imprinted to investigate the effects of mould cavity dimensions (width, spacing, and fillet) and grain size on the formation of features. It was concluded that the width and grain size had significant effects on the feature formation. Wider groove or larger size grain was helpful to enhance the flowability of materials. Moreover, the technique was validated for high throughput, low cost, low emission, and flexible fabrication technique.

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