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TransFlexTeg SIGNED

Large area transparent thin film thermoelectric devices for smart window and flexible applications

Total Cost €


EC-Contrib. €






Project "TransFlexTeg" data sheet

The following table provides information about the project.


Organization address
postcode: 2829-516

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Portugal [PT]
 Project website
 Total cost 4˙091˙187 €
 EC max contribution 4˙091˙187 € (100%)
 Programme 1. H2020-EU. (A new generation of components and systems: Engineering of advanced embedded and energy and resource efficient components and systems)
 Code Call H2020-ICT-2014-1
 Funding Scheme RIA
 Starting year 2015
 Duration (year-month-day) from 2015-01-01   to  2018-12-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
2    Teknologian tutkimuskeskus VTT Oy FI (Espoo) participant 699˙937.00
3    PICOSUN OY FI (ESPOO) participant 618˙750.00
4    AALTO KORKEAKOULUSAATIO SR FI (ESPOO) participant 553˙500.00
5    AGFA GEVAERT NV BE (MORTSEL) participant 449˙625.00
6    SOLEARTH LIMITED IE (DUBLIN) participant 313˙000.00
8    GRINP SRL IT (PORTE) participant 250˙000.00


 Project objective

The main objective is to develop an innovative large area distributed sensor network integrating transparent thin film thermoelectric devices and sensors for multifunctional smart windows and flexible high impact volume applications. Different breakthrough concepts are proposed: 1) large area high performance transparent thermoelectric thin films deposited on flexible substrates for thermal energy harvesting; 2) low cost high throughput thin film thermal sensors for thermal mapping and gesture sensing; 3) flexible smart windows and walls with energy harvesting, environmental sensing and wireless communication functionalities. The developed technology aims to demonstrate the functionalities of a smart window able to measure air quality and environmental parameters such as temperature, sun radiation and humidity. The data is automatically collected and can be utilized for controlling heating, cooling and ventilation systems of indoors. Active radio interface enables long range communication and long term data collection with WiFi or a similar base station. The proposed concept of smart windows replaces several conventional sensors with a distributed sensor network that is integrated invisibly into windows. In addition to the power generated from the thermal energy harvesting, the thermoelectric elements (TE) are also used as temperature sensors that, while being distributed over large area, enable thermal mapping of the area instead of just one or a few values measured from particular points. This smart window can be produced on glass, but the final goal will be the fabrication on transparent flexible organic substrates using Roll to Roll Atomic Layer Deposition (R2R ALD), that can be fixed or retrofitted on existing windows or walls, which will significantly broaden the field of applications and improve business opportunities. High environmental impact is expected with savings of more than 25% of the electrical usage of residential homes and office buildings.


List of deliverables.
Activity report on publications and presentations (public data available online) Documents, reports 2020-04-01 18:02:38
Report on the durability and reproducibility of the TE-TF Documents, reports 2020-04-01 18:02:38
Report on the performance of the fabricated sensing array with a scalable study Documents, reports 2020-04-01 18:02:38
Open access data Open Research Data Pilot 2020-04-01 18:02:38
Report with Intermediate results on public dissemination Documents, reports 2020-04-01 18:02:37
Report on the Substrate influence on temperature sensors array performance Documents, reports 2020-04-01 18:02:36
Report on the Band structures, Electrical conductivity and Seebeck coefficients and ZT Documents, reports 2020-04-01 18:02:36
Report on deposition temperature influence on temperature sensors array performance Documents, reports 2020-04-01 18:02:36
Project Fact Sheet Documents, reports 2020-04-01 18:02:37
Comparison between the TE properties of the deposited TF and the simulations results. Documents, reports 2020-04-01 18:02:36
Study a scalable fabrication of the substrate material combination including interfaces, contacting and wiring Documents, reports 2020-04-01 18:02:36
Report on small area TE-TF devices with optimized properties for energy harvesting and thermal control Documents, reports 2020-04-01 18:02:37
Report on the Thermal conductivity of Bulk and nanograin films Documents, reports 2020-04-01 18:02:36
Comparison between the TE properties of films deposited by sputtering/thermal evaporation and by ALD Documents, reports 2020-04-01 18:02:37
Report on the optimized deposition processes together with the post deposition treatments Documents, reports 2020-04-01 18:02:36

Take a look to the deliverables list in detail:  detailed list of TransFlexTeg deliverables.


year authors and title journal last update
List of publications.
2018 Kaarle Jaakkola, Kirsi Tappura
Exploitation of Transparent Conductive Oxides in the Implementation of a Window-Integrated Wireless Sensor Node
published pages: 7193-7202, ISSN: 1530-437X, DOI: 10.1109/jsen.2018.2852561
IEEE Sensors Journal 18/17 2020-04-01
2018 Bruno Miguel Morais Faustino, Diogo Gomes, Jaime Faria, Taneli Juntunen, Guilherme Gaspar, Catarina Bianchi, António Almeida, Ana Marques, Ilkka Tittonen, Isabel Ferreira
CuI p-type thin films for highly transparent thermoelectric p-n modules
published pages: , ISSN: 2045-2322, DOI: 10.1038/s41598-018-25106-3
Scientific Reports 8/1 2020-04-01
2018 Kirsi Tappura, Kaarle Jaakkola
A Thin-Film Thermoelectric Generator for Large-Area Applications
published pages: 779, ISSN: 2504-3900, DOI: 10.3390/proceedings2130779
Proceedings 2/13 2020-04-01
2016 Saima Ali, Taneli Juntunen, Sakari Sintonen, Oili M E Ylivaara, Riikka L Puurunen, Harri Lipsanen, Ilkka Tittonen, Simo-Pekka Hannula
Thermal conductivity of amorphous Al 2 O 3 /TiO 2 nanolaminates deposited by atomic layer deposition
published pages: 445704, ISSN: 0957-4484, DOI: 10.1088/0957-4484/27/44/445704
Nanotechnology 27/44 2020-04-01
2017 Joana Loureiro, Tiago Mateus, Sergej Filonovich, Marisa Ferreira, Joana Figueira, Alexandra Rodrigues, Brian F. Donovan, Patrick E. Hopkins, Isabel Ferreira
Improved thermoelectric properties of nanocrystalline hydrogenated silicon thin films by post-deposition thermal annealing
published pages: 276-280, ISSN: 0040-6090, DOI: 10.1016/j.tsf.2017.09.047
Thin Solid Films 642 2020-04-01
2016 Mikko Ruoho, Taneli Juntunen, Ilkka Tittonen
Large-area thermoelectric high-aspect-ratio nanostructures by atomic layer deposition
published pages: 355403, ISSN: 0957-4484, DOI: 10.1088/0957-4484/27/35/355403
Nanotechnology 27/35 2020-04-01
2017 David M. Sousa, João Carlos Lima, Isabel Ferreira
Synthesis of Cadmium Selenide Quantum Dots, Using 2,2-Bipyridine as a Capping and Phase Transfer Agent
published pages: 1271-1274, ISSN: 2365-6549, DOI: 10.1002/slct.201601804
ChemistrySelect 2/3 2020-04-01
2017 Van-Truong Tran, Jérôme Saint-Martin, Philippe Dollfus, Sebastian Volz
Optimizing the thermoelectric performance of graphene nano-ribbons without degrading the electronic properties
published pages: , ISSN: 2045-2322, DOI: 10.1038/s41598-017-02230-0
Scientific Reports 7/1 2020-04-01
2016 Mikko Ruoho, Taneli Juntunen, Tapani Alasaarela, Marko Pudas, Ilkka Tittonen
Transparent, Flexible, and Passive Thermal Touch Panel
published pages: 1600204, ISSN: 2365-709X, DOI: 10.1002/admt.201600204
Advanced Materials Technologies 1/9 2020-04-01
2017 Van-Truong Tran, Jérôme Saint-Martin, Philippe Dollfus, Sebastian Volz
Third nearest neighbor parameterized tight binding model for graphene nano-ribbons
published pages: 75212, ISSN: 2158-3226, DOI: 10.1063/1.4994771
AIP Advances 7/7 2020-04-01
2018 Kirsi Tappura
A numerical study on the design trade-offs of a thin-film thermoelectric generator for large-area applications
published pages: 78-87, ISSN: 0960-1481, DOI: 10.1016/j.renene.2017.12.063
Renewable Energy 120 2020-04-01
2016 Catarina Bianchi, Joana Loureiro, Paulo Duarte, Jose Marques, Joana Figueira, Ines Ropio, Isabel Ferreira
V 2 O 5 Thin Films for Flexible and High Sensitivity Transparent Temperature Sensor
published pages: 1600077, ISSN: 2365-709X, DOI: 10.1002/admt.201600077
Advanced Materials Technologies 1/6 2020-04-01
2017 Joana Figueira, Joana Loureiro, José Marques, Catarina Bianchi, Paulo Duarte, Mikko Ruoho, Ilkka Tittonen, Isabel Ferreira
Optimization of Cuprous Oxides Thin Films to be used as Thermoelectric Touch Detectors
published pages: 6520-6529, ISSN: 1944-8244, DOI: 10.1021/acsami.6b12753
ACS Applied Materials & Interfaces 9/7 2020-04-01
2016 C. Bianchi, L. M. Ferreira, J. Loureiro, A. Rodrigues, P. Duarte, A. C. Baptista, I. M. Ferreira
Vanadium Pentoxide Alloyed with Graphite for Thin-Film Thermal Sensors
published pages: 1987-1991, ISSN: 0361-5235, DOI: 10.1007/s11664-016-4363-2
Journal of Electronic Materials 45/3 2020-04-01
2017 Paulina Faria, Paulo Duarte, Davide Barbosa, Isabel Ferreira
New composite of natural hydraulic lime mortar with graphene oxide
published pages: 1150-1157, ISSN: 0950-0618, DOI: 10.1016/j.conbuildmat.2017.09.072
Construction and Building Materials 156 2020-04-01
2018 A. C. Baptista, I. Ropio, B. Romba, J. P. Nobre, C. Henriques, J. C. Silva, J. I. Martins, J. P. Borges, I. Ferreira
Cellulose-based electrospun fibers functionalized with polypyrrole and polyaniline for fully organic batteries
published pages: 256-265, ISSN: 2050-7488, DOI: 10.1039/C7TA06457H
Journal of Materials Chemistry A 6/1 2020-04-01

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