TY  - CONF
AU  - Mravik, Željko
AU  - Pejčić, Milica
AU  - Grujičić, Marija
AU  - Rmuš Mravik, Jelena
AU  - Stević, Miša
AU  - Stević, Zoran
AU  - Jovanović, Zoran
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12314
AB  - In sensor devices the material of choice should be highly dependent on perturbation of environmental parameters. In order to achieve good sensitivity and selectivity of sensing devices to temperature, humidity or concentration of different gasses, the materials with adjustable properties are highly desirable. Electric properties of graphene oxide (GO) can be easily tuned by modification of surface chemistry and anchoring of functional compounds onto its two-dimensional structure. Prior to application of sensing device, research and development of materials system is the most essential step. In this work, the formation of GO and GO/12-tungstophosphoric acid (WPA) films with 6 wt.% of WPA on interdigital electrodes was investigated by variation of dip-coating parameters (receding angle and time between steps). Obtained films were thermally reduced in argon atmosphere after which optical microscopy was used to evaluate morphology and stability of deposited GO and GO/WPA films. Impedance spectroscopy was used to investigate the electric properties of the obtained films in range from 10 Hz to 100 kHz. Measured impedance values were correlated to the degree of material detachment and deposition parameters i.e. films showing the lowest impedance values had the smallest area of detached film. Additionally, impedance values were measured depending on the environment temperature which showed that GO/WPA films exhibit the lowest impedance values and good sensitivity to changes of temperature making it good a candidate for sensing devices.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
T1  - Temperature dependence of electric properties of GO and GO/WPA films on interdigital electrodes
SP  - 40
EP  - 40
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12314
ER  - 

@conference{
author = "Mravik, Željko and Pejčić, Milica and Grujičić, Marija and Rmuš Mravik, Jelena and Stević, Miša and Stević, Zoran and Jovanović, Zoran",
year = "2023",
abstract = "In sensor devices the material of choice should be highly dependent on perturbation of environmental parameters. In order to achieve good sensitivity and selectivity of sensing devices to temperature, humidity or concentration of different gasses, the materials with adjustable properties are highly desirable. Electric properties of graphene oxide (GO) can be easily tuned by modification of surface chemistry and anchoring of functional compounds onto its two-dimensional structure. Prior to application of sensing device, research and development of materials system is the most essential step. In this work, the formation of GO and GO/12-tungstophosphoric acid (WPA) films with 6 wt.% of WPA on interdigital electrodes was investigated by variation of dip-coating parameters (receding angle and time between steps). Obtained films were thermally reduced in argon atmosphere after which optical microscopy was used to evaluate morphology and stability of deposited GO and GO/WPA films. Impedance spectroscopy was used to investigate the electric properties of the obtained films in range from 10 Hz to 100 kHz. Measured impedance values were correlated to the degree of material detachment and deposition parameters i.e. films showing the lowest impedance values had the smallest area of detached film. Additionally, impedance values were measured depending on the environment temperature which showed that GO/WPA films exhibit the lowest impedance values and good sensitivity to changes of temperature making it good a candidate for sensing devices.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts",
title = "Temperature dependence of electric properties of GO and GO/WPA films on interdigital electrodes",
pages = "40-40",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12314"
}

Mravik, Ž., Pejčić, M., Grujičić, M., Rmuš Mravik, J., Stević, M., Stević, Z.,& Jovanović, Z.. (2023). Temperature dependence of electric properties of GO and GO/WPA films on interdigital electrodes. in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
Belgrade : Institute of Technical Sciences of SASA., 40-40.
https://hdl.handle.net/21.15107/rcub_vinar_12314

Mravik Ž, Pejčić M, Grujičić M, Rmuš Mravik J, Stević M, Stević Z, Jovanović Z. Temperature dependence of electric properties of GO and GO/WPA films on interdigital electrodes. in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts. 2023;:40-40.
https://hdl.handle.net/21.15107/rcub_vinar_12314 .

Mravik, Željko, Pejčić, Milica, Grujičić, Marija, Rmuš Mravik, Jelena, Stević, Miša, Stević, Zoran, Jovanović, Zoran, "Temperature dependence of electric properties of GO and GO/WPA films on interdigital electrodes" in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts (2023):40-40,
https://hdl.handle.net/21.15107/rcub_vinar_12314 .

TY  - CONF
AU  - Stević, Zoran
AU  - Stolić, Predrag
AU  - Radovanović, Ilija
AU  - Stević, Miša
AU  - Stanimirović, Zdravko
AU  - Stanimirović, Ivanka
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12019
AB  - Solarni sistemi u poslednje vreme beleže esponencijalni rast instalisane snage. Ostvareni ekonomski efekti podstiču dalji razvoj tehnologije, tako da se postiže sve veća energetska efikasnost uz sve niža investiciona ulaganja. Države dodatno pomažu merama podsticaja, posebno u uslovima krize drugih energenata, tako da se očekuje još veći rast u budućnosti. U radu je dat pregled stanja tehnologije i regulative, kao i projekcije za budućnost u Evropi i Srbiji.
AB  - owadays,  solar  systems  have  recorded  in  an  exponential  increase  in  installed  power.  The achieved economic effects encourage further development of technology, so that increasing energy efficiency  have  been  achieved  with  lower  investments.  Countries  additionally  help  with  incentive measures,  especially  in  the  states  of  the  crisis  of  other  energy  sources,  thus  the  greater  growth  is expected in the future. The paper provides an overview of the state of technology and legal regula-tions, as well as projections for the future in Europe and Serbia.
PB  - Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije - SMEITS
C3  - ICREPS : 10th International Conference on Renewable Electrical Power Sources : Proceedings
T1  - Solar energetics - state and perspectives
T1  - Solarna energetika – stanje i perspektive
SP  - 135
EP  - 140
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12019
ER  - 

@conference{
author = "Stević, Zoran and Stolić, Predrag and Radovanović, Ilija and Stević, Miša and Stanimirović, Zdravko and Stanimirović, Ivanka",
year = "2022",
abstract = "Solarni sistemi u poslednje vreme beleže esponencijalni rast instalisane snage. Ostvareni ekonomski efekti podstiču dalji razvoj tehnologije, tako da se postiže sve veća energetska efikasnost uz sve niža investiciona ulaganja. Države dodatno pomažu merama podsticaja, posebno u uslovima krize drugih energenata, tako da se očekuje još veći rast u budućnosti. U radu je dat pregled stanja tehnologije i regulative, kao i projekcije za budućnost u Evropi i Srbiji., owadays,  solar  systems  have  recorded  in  an  exponential  increase  in  installed  power.  The achieved economic effects encourage further development of technology, so that increasing energy efficiency  have  been  achieved  with  lower  investments.  Countries  additionally  help  with  incentive measures,  especially  in  the  states  of  the  crisis  of  other  energy  sources,  thus  the  greater  growth  is expected in the future. The paper provides an overview of the state of technology and legal regula-tions, as well as projections for the future in Europe and Serbia.",
publisher = "Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije - SMEITS",
journal = "ICREPS : 10th International Conference on Renewable Electrical Power Sources : Proceedings",
title = "Solar energetics - state and perspectives, Solarna energetika – stanje i perspektive",
pages = "135-140",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12019"
}

Stević, Z., Stolić, P., Radovanović, I., Stević, M., Stanimirović, Z.,& Stanimirović, I.. (2022). Solar energetics - state and perspectives. in ICREPS : 10th International Conference on Renewable Electrical Power Sources : Proceedings
Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije - SMEITS., 135-140.
https://hdl.handle.net/21.15107/rcub_vinar_12019

Stević Z, Stolić P, Radovanović I, Stević M, Stanimirović Z, Stanimirović I. Solar energetics - state and perspectives. in ICREPS : 10th International Conference on Renewable Electrical Power Sources : Proceedings. 2022;:135-140.
https://hdl.handle.net/21.15107/rcub_vinar_12019 .

Stević, Zoran, Stolić, Predrag, Radovanović, Ilija, Stević, Miša, Stanimirović, Zdravko, Stanimirović, Ivanka, "Solar energetics - state and perspectives" in ICREPS : 10th International Conference on Renewable Electrical Power Sources : Proceedings (2022):135-140,
https://hdl.handle.net/21.15107/rcub_vinar_12019 .