A5022610095- Laser Material Processing Techniques
- Diamond and Carbon-based Materials Research
- Graphene research and applications
- Analytical Chemistry and Sensors
- Gas Sensing Nanomaterials and Sensors
- Nanomaterials and Printing Technologies
- Electrohydrodynamics and Fluid Dynamics
- Nanofabrication and Lithography Techniques
- Ion-surface interactions and analysis
- Laser-Ablation Synthesis of Nanoparticles
- Advanced Materials Characterization Techniques
- Laser-induced spectroscopy and plasma
- Electrochemical Analysis and Applications
- Electrochemical sensors and biosensors
- Cell Image Analysis Techniques
- Microfluidic and Bio-sensing Technologies
- 3D Printing in Biomedical Research
- Semiconductor Quantum Structures and Devices
- Characterization and Applications of Magnetic Nanoparticles
- Solid State Laser Technologies
- Neuroscience and Neural Engineering
- Mechanical and Optical Resonators
- Magnetic and Electromagnetic Effects
- Nonlinear Optical Materials Studies
- Laser Design and Applications
National Technical University of Athens
2014-2022
Laser-induced backward transfer (LIBT) has been demonstrated as a viable technique for precise, localised deposition of microscale regions graphene. Single femtosecond laser pulses, shaped spatially using digital micromirror device (DMD), were incident on pre-prepared sample graphene-coated nickel (the donor substrate) through transparent glass receiver substrate. Under optimal exposure conditions, and in low-pressure gas environment, circular graphene with approximately 30 µm diameter...
Achieving high quality transfer of graphene on selected substrates is a priority in device fabrication, especially where drop-on-demand applications are involved. In this work, we report an in-situ, fast, simple, and one step process that resulted the reduction, transfer, fabrication reduced oxide-based humidity sensors, using picosecond laser pulses. By tuning illumination parameters, managed to implement sequential printing reduction oxide flakes. The overall lasted only few seconds...
Abstract State-of-the-art methods for printing highly resolved pixels of two-dimensional (2D) materials on technologically important substrates typically involve multiple and time-consuming processing steps which increase device fabrication complexity the risk impurity contamination. This work introduces an alternative approach based laser induced forward transfer (LIFT) technique successful digital graphene, 2D material par excellence. Using LIFT, CVD graphene 30 μ m × in size are...
Flexible electronics are an evolving field that has spurred the interest of many researchers during last decade, due to wide range potential emerging applications including displays, sensors, radio-frequency identification tags, etc. In this work, we present our latest results on fabrication a flexible (polyimide), all laser printed chemical sensor device for detection humidity vapors. Firstly, surface treatment process was used improve wettability substrate towards features. The current...
The design of new materials as active layers is important for electrochemical sensor and biosensor development. Among the techniques modification functionalization electrodes, laser induced forward transfer (LIFT) has emerged a powerful physisorption method deposition various (even labile like enzymes) that results in intimate stable contact with target surface. In this work, Pt, Au, glassy carbon screen printed electrodes (SPEs) treated by LIFT phosphate buffer have been characterized...
Laser Induced Forward Transfer (LIFT) is a direct write technique, able to create micropatterns of biomaterials on sensing devices. In this conference we will present new approach using LIFT for the printing and immobilization great variety surfaces, bio-sensor applications. The basic requirement fabrication biosensor stabilize biomaterial that brings physicochemical changes in close proximity transducer. direction, several methods such as covalent binding crosslinking have been implemented....
During the last decade there is an ever-increasing interest for study of laser processes dynamics and specifically Laser Induced Forward Transfer (LIFT) technique, since evolution phenomena under investigation may provide real time metrology in terms jet velocity, adjacent interaction impact pressure. The such effects leads to a more thorough understanding deposition process, hence improved printing outcome these frames, this work presents on LIFT conductive nanoparticles inks using...
Publisher’s Note: This conference presentation, originally published on 9 March 2020, was withdrawn 20 May 2021 per author request.
Aiming to harness the unique capabilities of laser printing, in this study, we present our latest results on transfer and photo-crosslinking cell-laden bioinks comprising different hydrogels, using a dual beam configuration. Results from sources with ns sub-ns pulse duration repetition rates are also presented highlight effect parameters printing patterns. The outcome is correlated cell growth bioinks, while immunochemical staining employed study potential cellular damage.
Ιn the current work we will present transfer hBN, MoS2 and Bi2Se3-xSx by using Laser Induced Transfer technique on rigid flexible substrates. We exhibit advantages of certain technique, resolution transferred pixels characterization methods such as Scanning Electron Microscopy, Raman spectroscopy Atomic Force Microscopy. Furthermore, refer to possible applications concerning hBN. Finally, support experimental results with corresponding theoretical ab initio Molecular Dynamics (AIMD) main...
In the current work we will present transfer of graphene pixels and arrays. The process used to accomplish was Laser Induced Transfer technique. We exhibit advantages certain technique, resolution transferred characterization samples. Also, demonstrate arrays on both flexible polymeric rigid substrates. accomplished for from 40 μm 15 μm, whereas digital manipulation enables deposition with dimension up 1 mm2. Furthermore, in this fabrication a capacitance touch sensor. device is composed by...
Publisher’s Note: This conference presentation, originally published on 5 March 2021, was withdrawn 20 May 2021 per author request.