Projects / Programmes
Advanced inorganic and organic thin films with enhanced electrically-induced response
| Code |
Science |
Field |
Subfield |
| 2.09.01 |
Engineering sciences and technologies |
Electronic components and technologies |
Materials for electronic components |
| Code |
Science |
Field |
| T150 |
Technological sciences |
Material technology |
| Code |
Science |
Field |
| 2.05 |
Engineering and Technology |
Materials engineering |
thin films, inkjet printing, dielectric polymers, cellulose, composites
Researchers (13)
Organisations (1)
| no. |
Code |
Research organisation |
City |
Registration number |
No. of publicationsNo. of publications |
| 1. |
0106 |
Jožef Stefan Institute |
Ljubljana |
5051606000 |
90,742 |
Abstract
We suggest that the Slovenian Research Agency finances basic research project with the main task of development and characterization of new inorganic and organic thin films with enhanced dielectric, electromechanical, and electrocaloric response.
We will focus on various advanced materials:
- semiconducting core-shell structured, ferroelectric, and relaxor ceramic thin films;
- dielectric, ferroelectric, and relaxor polymer films;
- blends of different polymers on substrates and polymer composite films.
A special emphasis will be given to:
(i) a new manufacturing technique of ceramic thin films. 2D structures will namely be patterned by inkjet printing of liquid precursors onto different substrates (glass, polymer foils, single crystals, ceramics). In inkjet printing, few-picoliter-sized drops are ejected from the print-head nozzles by piezoelectric modulation, which enables a direct patterning of nanometer-thick structures with the resolution in the micrometer range;
(ii) aromatic polymers with ultrahigh breakdown field strength, low dielectric loss, and high electric energy density;
(iii) development of composites, where inorganic nanoparticles are dispersed in a natural polymer matrix, such as cellulose.
Besides contributions to the world's knowledge - the results will (a) shed an additional light on the microscopic origins of the dielectric, electromechanical, and electrocaloric response in thin layers and (b) reveal the impact of reducing dimensions on basic physical properties of developed systems – we expect the following outcome for the three main tasks (i-iii), emphasized in the previous paragraph:
(i-1) all-inkjet-printed (dielectric + electrodes) transparent thin-film capacitor with good and stable dielectric performance, comparable to commercial capacitors;
(i-2) all-inkjet-printed multilayer elements, with alternating ferroelectric and conductive layers, exhibiting good dielectric and electromechanical reponse;
(ii) low-dielectric-loss, high-energy-density free-standing ArPTU film (or film made of a comparable aromatic polymer);
(iii) flexible eco-friendly high-dielectric-constant cellulose nanofibrils-graphene composite with temperature-stable response for supercapacitor applications.
Significance for science
The main expected results of the proposed project are:
(i) the effective synthesis of novel inorganic and organic thin films with high dielectric, electromechanical, and electrocaloric response,
(ii) understanding the phenomenology resulting from experimental data,
(iii) the formation of researchers (PhD and Post-Doctorate), and
(iv) scientific publications.
Proposed project represents
(a) a contribution to the world's knowledge and
(b) can form a basis for an application.
(a) We expect that the results will shed an additional light on the microscopic origins of the dielectric, electromechanical, and electrocaloric response in thin layers, which is very interesting for the theory of induced electrical response. Moreover, results should reveal the impact of reducing the dimensions on basic physical properties of the developed systems.
(b) Materials with enhanced electrically-induced response are extremely interesting for applications in the fields of electric charge and energy storage (dielectric response), sensors and actuators (electromechanical response), and advanced cooling systems (electrocaloric response). A special emphasize will be given to three areas with a particularly useful value:
(1) Inkjet printing will enable a direct patterning of nanometer-thick structures on various substrates – inorganic layers with a large dielectric constant (high- K dielectrics) and an energy gap greater than 3.1 eV are, in addition to conductive oxides, the main elements of transparent electronics, such as thin-film transistors or capacitors on glass or polymer substrates.
(2) Free-standing ArPTU film (or film made of a comparable aromatic polymer) should be, due to its stable values of the dielectric constant over broad temperature and frequency ranges and low losses, being comparable to losses in commercial systems (high density polyethylene, HDPE, and polypropylene, PP), an extremely promising candidate for use in foil capacitors.
(3) Finally, a particularly useful value would have composites, where nanoparticles are dispersed in a natural polymer matrix, which would, due to a large interfacial polarization, result in the enhanced electrically-induced response. We expect that such eco-friendly composites would be, due to their flexibility and strength, excellent candidates for low-cost, "green", flexible energy storage devices (flexible supercapacitors).
Significance for the country
The main expected results of the proposed project are:
(i) the effective synthesis of novel inorganic and organic thin films with high dielectric, electromechanical, and electrocaloric response,
(ii) understanding the phenomenology resulting from experimental data,
(iii) the formation of researchers (PhD and Post-Doctorate), and
(iv) scientific publications.
Proposed project represents
(a) a contribution to the world's knowledge and
(b) can form a basis for an application.
(a) We expect that the results will shed an additional light on the microscopic origins of the dielectric, electromechanical, and electrocaloric response in thin layers, which is very interesting for the theory of induced electrical response. Moreover, results should reveal the impact of reducing the dimensions on basic physical properties of the developed systems.
(b) Materials with enhanced electrically-induced response are extremely interesting for applications in the fields of electric charge and energy storage (dielectric response), sensors and actuators (electromechanical response), and advanced cooling systems (electrocaloric response). A special emphasize will be given to three areas with a particularly useful value:
(1) Inkjet printing will enable a direct patterning of nanometer-thick structures on various substrates – inorganic layers with a large dielectric constant (high- K dielectrics) and an energy gap greater than 3.1 eV are, in addition to conductive oxides, the main elements of transparent electronics, such as thin-film transistors or capacitors on glass or polymer substrates.
(2) Free-standing ArPTU film (or film made of a comparable aromatic polymer) should be, due to its stable values of the dielectric constant over broad temperature and frequency ranges and low losses, being comparable to losses in commercial systems (high density polyethylene, HDPE, and polypropylene, PP), an extremely promising candidate for use in foil capacitors.
(3) Finally, a particularly useful value would have composites, where nanoparticles are dispersed in a natural polymer matrix, which would, due to a large interfacial polarization, result in the enhanced electrically-induced response. We expect that such eco-friendly composites would be, due to their flexibility and strength, excellent candidates for low-cost, "green", flexible energy storage devices (flexible supercapacitors).
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Interim report
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