Phospho-silicate sol-gel films doped with QDs of PbS and PbSe, respectively, with optimized parameters. Demonstration experimental model and prototype device for temperature optical sensing.
ACTIVITIES
1. Optimization of sol-gel synthesis parameters of phospho-silicate films doped with PbS and PbSe QDs, respectively, deposited on rotating substrates.
2. Optimization of sol-gel synthesis parameters of phospho-silicate films with a complex composition, doped with PbS and PbSe QDs, respectively, deposited on rotating substrates.
3. Optimization of optical, structural and morphological characterization parameters of phospho-silicate films doped with PbS and PbSe QDs, respectively, deposited on rotating substrates.
4. Optimization of optical, structural and morphological characterization parameters of phospho-silicate films, with complex composition, doped with PbS and PbSe QDs, respectively, deposited on rotating substrates.
5. Testing and characterization of sensitive components, devices and phospho-silicate films doped with PbS and PbSe QDs, respectively, related to optical temperature sensing instrumentation.
6. Testing and validation of experimental demonstration model of temperature optical detection.
7. Optical sensor component integration and assembly concept design, housing prototyping.
8. Testing and validation of the prototype device – optical sensor for temperature detection.
9. Dissemination of research results.
10. Elaboration of patent application.
RESULTS
1. The films belonging to the compositional system: Al2O3-SiO2-P2O5-PbS (PbS dopant with emission at 1200 nm) were synthesized by the sol-gel method, the deposition technique, on rotating substrates of glass, ITO and, respectively, silicon.
2. The obtained films were optically characterized by transmission spectroscopy in the UV-Vis-NIR range, in the case of the films deposited on glass and ITO substrates, and by reflection spectroscopy, in the case of the film deposited on a silicon substrate.
3. The film belonging to the compositional system Al2O3-SiO2-P2O5-PbS (PbS dopant with emission at 1200 nm) was structurally characterized by Raman spectrometry, excitation at 514 nm, range 100-16000 cm-1.
4. The films belonging to the compositional system Al2O3-SiO2-P2O5-PbSe (PbSe dopant with emission at 1200 nm) were synthesized by the sol-gel method, the deposition technique, on rotating substrates of glass, ITO and, respectively, silicon.
5. The obtained films were optically characterized by transmission spectroscopy in the UV-Vis-NIR range, in the case of films deposited on glass and ITO substrates, and by reflection spectroscopy in the case of the film deposited on silicon substrate.
6. The film belonging to the compositional system Al2O3-SiO2-P2O5-PbSe (PbSe dopant with emission at 1200 nm) was structurally characterized by Raman spectrometry, excitation at 514 nm, range 100-16000 cm-1.
7. The films belonging to the compositional system Al2O3-SiO2-P2O5-PbS (PbS dopant with emission at 1400 nm, 20 layers deposited on each substrate) were synthesized by the sol-gel method, the deposition technique on rotating substrates of glass, ITO and, respectively, silicon.
8. The deposited films were optically characterized by transmission spectrometry in the UV-VIS-NIR range and luminescence in the NIR range.
9. A film belonging to the compositional system Al2O3-SiO2-P2O5-PbS (PbS dopant with emission at 1400 nm, 50 layers deposited on glass substrate) was synthesized.
10. The deposited film was optically characterized by absorption spectroscopy in the UV-VIS-NIR range and luminescence in the NIR range.
11. The film belonging to the compositional system Al2O3-SiO2-P2O5-PbS (PbS dopant with emission at 1400 nm, 50 depositions on glass substrate) was characterized from a phase, optical, structural and morphological point of view.
12. A film belonging to the compositional system Al2O3-SiO2-P2O5-PbSe (PbSe dopant with emission at 1400 nm, 50 layers deposited on glass substrate) was synthesized.
13. The deposited film was optically characterized by absorption spectroscopy in the UV-VIS-NIR range and luminescence in the NIR range.
14. A film belonging to the compositional system Al2O3-SiO2-P2O5-PbS (PbS dopant with emission at 1500 nm, 50 layers deposited on glass substrate) was synthesized.
15. The deposited film was optically characterized by absorption spectroscopy in the UV-VIS-NIR range and luminescence in the NIR range.
16. The demonstrative experimental model of the infrared temperature detection sensor was tested and validated.
17. The prototype of the temperature detection device, integrated, non-contact, portable, with operation in the infrared (IR) range, was made, which ensures the detection of both the ambient temperature and the surface of a solid body of interest to the user.
18. The prototype device is integrated in an original case of our own design, manufactured by 3D Printing technology, which ensures maximum precision and flexibility for execution.
19. The prototype dedicated to temperature measurements in industrial spaces presents simplicity, reliability and reproducibility, short response time, allows real-time temperature measurement, high resolution and precision, immunity to parasitic electric and magnetic fields, integrated sensor instrumentation.
DISSEMINATION
Published articles
1. Adrian Ionut Nicoara, Mihai Eftimie, Mihail Elisa, Ileana Cristina Vasiliu, Cristina Bartha, Monica Enculescu, Mihaela Filipescu, César Elosúa Aguado, Diego Lopez, Bogdan Alexandru Sava and Mihai Oane, “Nanostructured PbS-doped inorganic film synthesized by sol-gel route”, Nanomaterials, 12 (17), 3006, (1-15), 2022, https://doi.org/10.3390/nano12173006 (Section “Nanophotonics Materials and Devices”, Special Issue: Application of Optical Thin Films).
Book Chapter
1. I. Chilibon, M. Elisa, C. E. A. Grigorescu, A. M.Iordache, S. M. Iordache, I. C. Vasiliu, “Special optoelectronic and optospintronic materials with targeted functionalities”, Book of Proceedings: Optoelectronics for R & R Processes Conference, 2022, pp. 120-136.
Patent applications
1. Elisa Mihail, Iordache Stefan Marian, Iordache Ana Maria, Vasiliu Ileana Cristina, “Filme oxidice dopate cu PbS, cu proprietati optice, pentru senzori de temperatura si procedeul de sinteza a acestora”(Oxide films doped by PbS with optical properties, for temperature sensors and their synthesis method) Patent application, no. A/00556/09.09.2022.
2. Dumitru Ulieru, Oana-Maria Ulieru, “Intelligent optical device for non-contact infrared temperature detection”, Patent apllication, no. A/00725/14.11.2022.
Scientific events (communications)
1. M. Elisa, I. C. Vasiliu, S-M. Iordache, A-M. Iordache, I. Pana, C. Elosua Aguado, F. J. Arregui, D. Lopez, D. Ulieru, X. Vila, J. Caridad Hernanández, M. Á. Casanova González, J. F. de Paz Santana, M. Enculescu, A-I. Nicoara, M. Eftimie, “Smart optical device for temperature sensing, based on innovative luminescent IV-VI quantum dots-doped complex nanostructured thin films (MANUNET project MNET20/NMCS3732)”, EUROINVENT-14th European Exhibition of Creativity and Innovation, Iasi, Romania, 2022, Hybrid Edition, Proceedings, Poster RO. 251, pag.486, Online, ISSN Print: 2601-4564, ISSN Online: 2601-4572, Diploma of Gold Medal.
2. Elisa, M., Iordache, S. M., Iordache, A-M., Vasiliu, I. C., Pana, I., Enculescu, M., Elosua Aguado, C., Arregui, F. J., Lopez D., Ulieru, D., Vila, X., Caridad Hernanández, J., Casanova González, M. Á., de Paz Santana, J. F., Nicoara A-I., Eftimie M., EMRS Spring Meeting 2022, Symposion C: Semiconductor Nanostructures Towards Opto-Electronic and Photonic Device Applications, Section: Nanocrystal Doping, Programme Symposium C, Poster presentation: C.13.8, pag. C-10, Online.
3. Elisa, M.; Arregui, FJ; Caridad Hernandez, J; Casanova Gonzalez, MA; Elosua Aguado, C.; Elosua Aguado, C.; Enculescu, M.; Iordache, A.-M.; Iordache, S-M.; Lopez, D.; Pana, I.; Ulieru, D.; Vasiliu, I.C.; Vila, X.; de Paz Santana, J.F. “Advanced sol-gel IV-VI quantum dots-doped thin films for temperature sensing systems”, 26th International Congress on Glass, Berlin, Germany, 2022, Session I.3: Hybrid Glasses and Emerging Glass Chemistries, Poster #19.
4. M. Elisa, I. C. Vasiliu, S. M. Iordache, A. M. Iordache, I. Pana, M. Enculescu, A. I. Nicoara, M. Eftimie, C. Elosua Aguado, D. Lopez, F. J. Arregui, D. Ulieru, X. Vila, J. Caridad Hernanández, M. Á. Casanova González, J. F. de Paz Santana, “Complex sol-gel IV-VI quantum dots-doped inorganic thin films for temperature sensing instrumentation”, International Scientific Events, Materials, Methods & Technologies, Burgas, Bulgaria, 2022, Conference Program, Poster Session #2, Communication 102, Pag. 11, Online.
5. I. Chilibon, M. Elisa, C. E. A. Grigorescu, A. M.Iordache, S. M. Iordache, I. C. Vasiliu, “Special optoelectronic and optospintronic materials with targeted functionalities”, Optoelectronics for R & R Processes Conference, 2022, Magurele, Romania, Conference Program, Presentation #16, Online.
6. Dumitru Ulieru, Oana Maria Ulieru, “The innovative temperature sensors based on nanomaterials for visible and IR application domains”, The 2nd International Short School on Smart Materials for Opto-Electronic Applications, 2022, Cetraro, Italy (PULSE-COM project website).
Awards and diplomas
1. M. Elisa, I. C. Vasiliu, S-M. Iordache, A-M. Iordache, I. Pana, C. Elosua Aguado, F. J. Arregui, D. Lopez, D. Ulieru, X. Vila, J. Caridad Hernanández, M. Á. Casanova González, J. F. de Paz Santana, M. Enculescu, A-I. Nicoara, M. Eftimie, “Smart optical device for temperature sensing, based on innovative luminescent IV-VI quantum dots-doped complex nanostructured thin films (MANUNET projectMNET20/NMCS3732)”, EUROINVENT-14th European Exhibition of Creativity and Innovation, Iasi, Romania, 2022, Hybrid Edition, Poster Online, Diploma of Gold Medal.
Scientific workshop
At the end of Stage III/2022, the project coordinator, INOE 2000 organized a scientific workshop attended by all the consortium partners (INOE 2000, Romania; SITEX 45 SRL, Romania; UPNA, Spain, AlfaIot, Spain as well as the University of Salamanca, Department ESALAB, Spain, as a subcontractor of UPNA). Each participant presented the main activities carried out within Stage III/2022, highlighting the main results of the research achieved within the project, an exchange of ideas and experience between the meeting participants was carried out and the main directions of collaboration were presented, further, after the completion of the project. In conclusion, it can be stated that the works presented at this final workshop achieved the proposed objectives.