TY  - JOUR
AU  - Stanojević, Neda
AU  - Markushev, Dragana K.
AU  - Aleksić, Sanja M.
AU  - Pantić, Dragan S.
AU  - Galović, Slobodanka
AU  - Markushev, Dragan D.
AU  - Ordonez-Miranda, Jose
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11211
AB  - Based on the analogy between resistor-capacitor (RC) filters and the thermoelastic component of a photoacoustic signal, the complex thermoelastic response of an open photoacoustic cell is described as a simple linear time-invariant system of a low-pass RC filter. This description is done by finding a linear relation between the thermoelastic cut-off frequency and sample material thickness within the range of 10-1000 μm. Based on the theory of a composite piston, we run numerical simulations of the proposed method for n-type silicon, described as either a surface or volume absorber. Theoretical predictions are experimentally validated by using an open photoacoustic cell setup to record the signal of an 850-μm-thick n-type silicon wafer illuminated by a blue light source modulated with frequencies from 20 Hz to 20 kHz. The obtained experimental results confirm the linear dependence of the thermoelastic cut-off frequency on the sample thickness, and, therefore, they lay the foundation of a new method for the thermal characterization of materials. © 2023 Author(s).
T2  - Journal of Applied Physics
T1  - Thermal characterization of n-type silicon based on an electro-acoustic analogy
VL  - 133
IS  - 24
SP  - 245102
DO  - 10.1063/5.0152495
ER  - 

@article{
author = "Stanojević, Neda and Markushev, Dragana K. and Aleksić, Sanja M. and Pantić, Dragan S. and Galović, Slobodanka and Markushev, Dragan D. and Ordonez-Miranda, Jose",
year = "2023",
abstract = "Based on the analogy between resistor-capacitor (RC) filters and the thermoelastic component of a photoacoustic signal, the complex thermoelastic response of an open photoacoustic cell is described as a simple linear time-invariant system of a low-pass RC filter. This description is done by finding a linear relation between the thermoelastic cut-off frequency and sample material thickness within the range of 10-1000 μm. Based on the theory of a composite piston, we run numerical simulations of the proposed method for n-type silicon, described as either a surface or volume absorber. Theoretical predictions are experimentally validated by using an open photoacoustic cell setup to record the signal of an 850-μm-thick n-type silicon wafer illuminated by a blue light source modulated with frequencies from 20 Hz to 20 kHz. The obtained experimental results confirm the linear dependence of the thermoelastic cut-off frequency on the sample thickness, and, therefore, they lay the foundation of a new method for the thermal characterization of materials. © 2023 Author(s).",
journal = "Journal of Applied Physics",
title = "Thermal characterization of n-type silicon based on an electro-acoustic analogy",
volume = "133",
number = "24",
pages = "245102",
doi = "10.1063/5.0152495"
}

Stanojević, N., Markushev, D. K., Aleksić, S. M., Pantić, D. S., Galović, S., Markushev, D. D.,& Ordonez-Miranda, J.. (2023). Thermal characterization of n-type silicon based on an electro-acoustic analogy. in Journal of Applied Physics, 133(24), 245102.
https://doi.org/10.1063/5.0152495

Stanojević N, Markushev DK, Aleksić SM, Pantić DS, Galović S, Markushev DD, Ordonez-Miranda J. Thermal characterization of n-type silicon based on an electro-acoustic analogy. in Journal of Applied Physics. 2023;133(24):245102.
doi:10.1063/5.0152495 .

Stanojević, Neda, Markushev, Dragana K., Aleksić, Sanja M., Pantić, Dragan S., Galović, Slobodanka, Markushev, Dragan D., Ordonez-Miranda, Jose, "Thermal characterization of n-type silicon based on an electro-acoustic analogy" in Journal of Applied Physics, 133, no. 24 (2023):245102,
https://doi.org/10.1063/5.0152495 . .

TY  - JOUR
AU  - Stanojević, Neda
AU  - Markushev, Dragana K.
AU  - Aleksić, Sanja M.
AU  - Pantić, Dragan S.
AU  - Galović, Slobodanka
AU  - Markushev, Dragan D.
AU  - Ordonez-Miranda, Jose
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11212
AB  - Based on the analogy between resistor-capacitor (RC) filters and the thermoelastic component of a photoacoustic signal, the complex thermoelastic response of an open photoacoustic cell is described as a simple linear time-invariant system of a low-pass RC filter. This description is done by finding a linear relation between the thermoelastic cut-off frequency and sample material thickness within the range of 10-1000 μm. Based on the theory of a composite piston, we run numerical simulations of the proposed method for n-type silicon, described as either a surface or volume absorber. Theoretical predictions are experimentally validated by using an open photoacoustic cell setup to record the signal of an 850-μm-thick n-type silicon wafer illuminated by a blue light source modulated with frequencies from 20 Hz to 20 kHz. The obtained experimental results confirm the linear dependence of the thermoelastic cut-off frequency on the sample thickness, and, therefore, they lay the foundation of a new method for the thermal characterization of materials. © 2023 Author(s).
T2  - Journal of Applied Physics
T1  - Thermal characterization of n-type silicon based on an electro-acoustic analogy
VL  - 133
IS  - 24
SP  - 245102
DO  - 10.1063/5.0152495
ER  - 

@article{
author = "Stanojević, Neda and Markushev, Dragana K. and Aleksić, Sanja M. and Pantić, Dragan S. and Galović, Slobodanka and Markushev, Dragan D. and Ordonez-Miranda, Jose",
year = "2023",
abstract = "Based on the analogy between resistor-capacitor (RC) filters and the thermoelastic component of a photoacoustic signal, the complex thermoelastic response of an open photoacoustic cell is described as a simple linear time-invariant system of a low-pass RC filter. This description is done by finding a linear relation between the thermoelastic cut-off frequency and sample material thickness within the range of 10-1000 μm. Based on the theory of a composite piston, we run numerical simulations of the proposed method for n-type silicon, described as either a surface or volume absorber. Theoretical predictions are experimentally validated by using an open photoacoustic cell setup to record the signal of an 850-μm-thick n-type silicon wafer illuminated by a blue light source modulated with frequencies from 20 Hz to 20 kHz. The obtained experimental results confirm the linear dependence of the thermoelastic cut-off frequency on the sample thickness, and, therefore, they lay the foundation of a new method for the thermal characterization of materials. © 2023 Author(s).",
journal = "Journal of Applied Physics",
title = "Thermal characterization of n-type silicon based on an electro-acoustic analogy",
volume = "133",
number = "24",
pages = "245102",
doi = "10.1063/5.0152495"
}

Stanojević, N., Markushev, D. K., Aleksić, S. M., Pantić, D. S., Galović, S., Markushev, D. D.,& Ordonez-Miranda, J.. (2023). Thermal characterization of n-type silicon based on an electro-acoustic analogy. in Journal of Applied Physics, 133(24), 245102.
https://doi.org/10.1063/5.0152495

Stanojević N, Markushev DK, Aleksić SM, Pantić DS, Galović S, Markushev DD, Ordonez-Miranda J. Thermal characterization of n-type silicon based on an electro-acoustic analogy. in Journal of Applied Physics. 2023;133(24):245102.
doi:10.1063/5.0152495 .

Stanojević, Neda, Markushev, Dragana K., Aleksić, Sanja M., Pantić, Dragan S., Galović, Slobodanka, Markushev, Dragan D., Ordonez-Miranda, Jose, "Thermal characterization of n-type silicon based on an electro-acoustic analogy" in Journal of Applied Physics, 133, no. 24 (2023):245102,
https://doi.org/10.1063/5.0152495 . .

TY  - JOUR
AU  - Aleksić, Sanja M.
AU  - Markushev, Dragana K.
AU  - Markushev, Dragan D.
AU  - Pantić, Dragan S.
AU  - Lukić, D. V.
AU  - Popović, Marica N.
AU  - Galović, Slobodanka
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10166
AB  - This paper describes the influence of thin transparent film on thermal and elastic characteristics of the two-layer sample consisting of the silicon substrate and thin TiO2 film using analysis of photoacoustic signals and their components in the 20 Hz – 20 kHz frequency domain. Through thermoelastic component changes, it was found that the thin film significantly changes the thermal state of the substrate and makes the degree of its bending increase drastically. The relationships between the thermoelastic component, the displacement along the heat flux axis and the difference of carrier density and temperatures on the different sides of the sample are described. It has been shown that the addition of a thin transparent film to a silicon substrate can effectively reduce the influence of photogenerated carriers in the substrate, especially on its degree of flexibility and restore it efficiently.
T2  - Silicon
T1  - Photoacoustic Analysis of Illuminated Si-TiO2 Sample Bending Along the Heat-Flow Axes
DO  - 10.1007/s12633-022-01723-6
ER  - 

@article{
author = "Aleksić, Sanja M. and Markushev, Dragana K. and Markushev, Dragan D. and Pantić, Dragan S. and Lukić, D. V. and Popović, Marica N. and Galović, Slobodanka",
year = "2022",
abstract = "This paper describes the influence of thin transparent film on thermal and elastic characteristics of the two-layer sample consisting of the silicon substrate and thin TiO2 film using analysis of photoacoustic signals and their components in the 20 Hz – 20 kHz frequency domain. Through thermoelastic component changes, it was found that the thin film significantly changes the thermal state of the substrate and makes the degree of its bending increase drastically. The relationships between the thermoelastic component, the displacement along the heat flux axis and the difference of carrier density and temperatures on the different sides of the sample are described. It has been shown that the addition of a thin transparent film to a silicon substrate can effectively reduce the influence of photogenerated carriers in the substrate, especially on its degree of flexibility and restore it efficiently.",
journal = "Silicon",
title = "Photoacoustic Analysis of Illuminated Si-TiO2 Sample Bending Along the Heat-Flow Axes",
doi = "10.1007/s12633-022-01723-6"
}

Aleksić, S. M., Markushev, D. K., Markushev, D. D., Pantić, D. S., Lukić, D. V., Popović, M. N.,& Galović, S.. (2022). Photoacoustic Analysis of Illuminated Si-TiO2 Sample Bending Along the Heat-Flow Axes. in Silicon.
https://doi.org/10.1007/s12633-022-01723-6

Aleksić SM, Markushev DK, Markushev DD, Pantić DS, Lukić DV, Popović MN, Galović S. Photoacoustic Analysis of Illuminated Si-TiO2 Sample Bending Along the Heat-Flow Axes. in Silicon. 2022;.
doi:10.1007/s12633-022-01723-6 .

Aleksić, Sanja M., Markushev, Dragana K., Markushev, Dragan D., Pantić, Dragan S., Lukić, D. V., Popović, Marica N., Galović, Slobodanka, "Photoacoustic Analysis of Illuminated Si-TiO2 Sample Bending Along the Heat-Flow Axes" in Silicon (2022),
https://doi.org/10.1007/s12633-022-01723-6 . .

TY  - JOUR
AU  - Markushev, Dragana K.
AU  - Markushev, Dragan D.
AU  - Aleksić, Sanja M.
AU  - Pantić, Dragan S.
AU  - Galović, Slobodanka
AU  - Lukić, D V
AU  - Ordonez-Miranda, Jose
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10198
AB  - The reduction of the photogenerated charge carriers' influence in periodically illuminated thin silicon membranes is investigated by using the experimental setup of an open photoacoustic cell in the standard range of modulation frequencies from 20 Hz to 20 kHz. It is confirmed that the deposition of a 200 nm thin film of titanium dioxide on the 30- and 50 μm silicon membrane leads to a large increase of the thermoelastic component of the photoacoustic signal, which restores the flexibility lost to the membrane under the influence of photogenerated carriers. The effect of the thermoelastic component enhancement is analyzed by observing the displacement of the tested samples along the heat propagation axis, depending on the carrier density and temperature differences on the illuminated and unilluminated sides, for different membrane thicknesses and a constant film thickness. It is found that the effect of enhancement of several orders of magnitude is more visible in thinner membranes due to higher ratios between the film and membrane thicknesses.
T2  - Journal of Applied Physics
T1  - Enhancement of the thermoelastic component of the photoacoustic signal of silicon membranes coated with a thin TiO2 film
VL  - 131
IS  - 8
SP  - 085105
DO  - 10.1063/5.0079902
ER  - 

@article{
author = "Markushev, Dragana K. and Markushev, Dragan D. and Aleksić, Sanja M. and Pantić, Dragan S. and Galović, Slobodanka and Lukić, D V and Ordonez-Miranda, Jose",
year = "2022",
abstract = "The reduction of the photogenerated charge carriers' influence in periodically illuminated thin silicon membranes is investigated by using the experimental setup of an open photoacoustic cell in the standard range of modulation frequencies from 20 Hz to 20 kHz. It is confirmed that the deposition of a 200 nm thin film of titanium dioxide on the 30- and 50 μm silicon membrane leads to a large increase of the thermoelastic component of the photoacoustic signal, which restores the flexibility lost to the membrane under the influence of photogenerated carriers. The effect of the thermoelastic component enhancement is analyzed by observing the displacement of the tested samples along the heat propagation axis, depending on the carrier density and temperature differences on the illuminated and unilluminated sides, for different membrane thicknesses and a constant film thickness. It is found that the effect of enhancement of several orders of magnitude is more visible in thinner membranes due to higher ratios between the film and membrane thicknesses.",
journal = "Journal of Applied Physics",
title = "Enhancement of the thermoelastic component of the photoacoustic signal of silicon membranes coated with a thin TiO2 film",
volume = "131",
number = "8",
pages = "085105",
doi = "10.1063/5.0079902"
}

Markushev, D. K., Markushev, D. D., Aleksić, S. M., Pantić, D. S., Galović, S., Lukić, D. V.,& Ordonez-Miranda, J.. (2022). Enhancement of the thermoelastic component of the photoacoustic signal of silicon membranes coated with a thin TiO2 film. in Journal of Applied Physics, 131(8), 085105.
https://doi.org/10.1063/5.0079902

Markushev DK, Markushev DD, Aleksić SM, Pantić DS, Galović S, Lukić DV, Ordonez-Miranda J. Enhancement of the thermoelastic component of the photoacoustic signal of silicon membranes coated with a thin TiO2 film. in Journal of Applied Physics. 2022;131(8):085105.
doi:10.1063/5.0079902 .

Markushev, Dragana K., Markushev, Dragan D., Aleksić, Sanja M., Pantić, Dragan S., Galović, Slobodanka, Lukić, D V, Ordonez-Miranda, Jose, "Enhancement of the thermoelastic component of the photoacoustic signal of silicon membranes coated with a thin TiO2 film" in Journal of Applied Physics, 131, no. 8 (2022):085105,
https://doi.org/10.1063/5.0079902 . .

TY  - JOUR
AU  - Markushev, Dragana K.
AU  - Markushev, Dragan D.
AU  - Aleksić, Sanja M.
AU  - Pantić, Dragan S.
AU  - Galović, Slobodanka
AU  - Todorović, Dragan M.
AU  - Ordonez-Miranda, Jose
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9663
AB  - Based on the experimental and theoretical signals of an open photoacoustic cell operating with modulation frequencies from 20 Hz to
20 kHz, a significant contribution of photogenerated excess carriers on the thermal and thermoelastic responses of an n-type silicon plate is
observed for the very first time. This is achieved by comparing the measured amplitude and phase of the photoacoustic signal with their
corresponding theoretical thermoelastic counterparts, for high enough modulation frequencies mainly. It is shown that the amplitude of the
thermoelastic component of plasma-thin samples varies about two orders of magnitude with respect to the corresponding one of
plasma-thick samples. Furthermore, we find a maximal temperature difference ΔT =− 35 nK between the illuminated and non-illuminated
sample surfaces, which shows that thin silicon plates with excess carriers could be used as heat sinks.
T2  - Journal of Applied Physics
T1  - Experimental photoacoustic observation of the photogenerated excess carrier influence on the thermoelastic response of n-type silicon
VL  - 128
IS  - 9
SP  - 095103
DO  - 10.1063/5.0015657
ER  - 

@article{
author = "Markushev, Dragana K. and Markushev, Dragan D. and Aleksić, Sanja M. and Pantić, Dragan S. and Galović, Slobodanka and Todorović, Dragan M. and Ordonez-Miranda, Jose",
year = "2020",
abstract = "Based on the experimental and theoretical signals of an open photoacoustic cell operating with modulation frequencies from 20 Hz to
20 kHz, a significant contribution of photogenerated excess carriers on the thermal and thermoelastic responses of an n-type silicon plate is
observed for the very first time. This is achieved by comparing the measured amplitude and phase of the photoacoustic signal with their
corresponding theoretical thermoelastic counterparts, for high enough modulation frequencies mainly. It is shown that the amplitude of the
thermoelastic component of plasma-thin samples varies about two orders of magnitude with respect to the corresponding one of
plasma-thick samples. Furthermore, we find a maximal temperature difference ΔT =− 35 nK between the illuminated and non-illuminated
sample surfaces, which shows that thin silicon plates with excess carriers could be used as heat sinks.",
journal = "Journal of Applied Physics",
title = "Experimental photoacoustic observation of the photogenerated excess carrier influence on the thermoelastic response of n-type silicon",
volume = "128",
number = "9",
pages = "095103",
doi = "10.1063/5.0015657"
}

Markushev, D. K., Markushev, D. D., Aleksić, S. M., Pantić, D. S., Galović, S., Todorović, D. M.,& Ordonez-Miranda, J.. (2020). Experimental photoacoustic observation of the photogenerated excess carrier influence on the thermoelastic response of n-type silicon. in Journal of Applied Physics, 128(9), 095103.
https://doi.org/10.1063/5.0015657

Markushev DK, Markushev DD, Aleksić SM, Pantić DS, Galović S, Todorović DM, Ordonez-Miranda J. Experimental photoacoustic observation of the photogenerated excess carrier influence on the thermoelastic response of n-type silicon. in Journal of Applied Physics. 2020;128(9):095103.
doi:10.1063/5.0015657 .

Markushev, Dragana K., Markushev, Dragan D., Aleksić, Sanja M., Pantić, Dragan S., Galović, Slobodanka, Todorović, Dragan M., Ordonez-Miranda, Jose, "Experimental photoacoustic observation of the photogenerated excess carrier influence on the thermoelastic response of n-type silicon" in Journal of Applied Physics, 128, no. 9 (2020):095103,
https://doi.org/10.1063/5.0015657 . .

TY  - CONF
AU  - Panić, Ivan
AU  - Pantić, Dragan
AU  - Radaković, Jana
AU  - Rosić, Milena
AU  - Jordanov, Dragana
AU  - Dodevski, Vladimir
AU  - Čebela, Maria
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11492
AB  - Bismuth ferrite (BiFeO3) is one of the most studied multiferroic system with a large number of published articles. This is mainly because BiFeO3 material possesses both ferromagnetic and ferroelectric properties observed at room temperature, which opens great possibility for industrial and technological applications. Well-crystallized single-crystal BiFeO3 nanopowder has been successfully synthesized with the hydrothermal method. Structural analysis showed that non-annealed powder can be perfectly fitted to rhombohedral space group R3c and contains a very small amount of secondary phase, whereas the final product (annealed at 800 °C) represents single-phase perovskite powder with high crystallinity. HRTEM analysis confirmed existence of twin stacking faults, which are responsible for enhanced magnetic properties. EPR measurements suggested existence of electrons trapped by vacancies or defects. It has been proposed that existence of Fe3+ −OV defect complex could be generated at elevated temperatures followed by formation of trivalent Fe ions, which intensely provide local 3d moments.
PB  - University of Belgrade : Institute for Multidisciplinary Research
C3  - 5CSCS : 5th Serbian Ceramic Society Conference : programme and the book of abstracts; June 11-13; Belgrade
T1  - Synthesis and characterization of BiFeO3 fine powders
SP  - 129
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11492
ER  - 

@conference{
author = "Panić, Ivan and Pantić, Dragan and Radaković, Jana and Rosić, Milena and Jordanov, Dragana and Dodevski, Vladimir and Čebela, Maria",
year = "2019",
abstract = "Bismuth ferrite (BiFeO3) is one of the most studied multiferroic system with a large number of published articles. This is mainly because BiFeO3 material possesses both ferromagnetic and ferroelectric properties observed at room temperature, which opens great possibility for industrial and technological applications. Well-crystallized single-crystal BiFeO3 nanopowder has been successfully synthesized with the hydrothermal method. Structural analysis showed that non-annealed powder can be perfectly fitted to rhombohedral space group R3c and contains a very small amount of secondary phase, whereas the final product (annealed at 800 °C) represents single-phase perovskite powder with high crystallinity. HRTEM analysis confirmed existence of twin stacking faults, which are responsible for enhanced magnetic properties. EPR measurements suggested existence of electrons trapped by vacancies or defects. It has been proposed that existence of Fe3+ −OV defect complex could be generated at elevated temperatures followed by formation of trivalent Fe ions, which intensely provide local 3d moments.",
publisher = "University of Belgrade : Institute for Multidisciplinary Research",
journal = "5CSCS : 5th Serbian Ceramic Society Conference : programme and the book of abstracts; June 11-13; Belgrade",
title = "Synthesis and characterization of BiFeO3 fine powders",
pages = "129",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11492"
}

Panić, I., Pantić, D., Radaković, J., Rosić, M., Jordanov, D., Dodevski, V.,& Čebela, M.. (2019). Synthesis and characterization of BiFeO3 fine powders. in 5CSCS : 5th Serbian Ceramic Society Conference : programme and the book of abstracts; June 11-13; Belgrade
University of Belgrade : Institute for Multidisciplinary Research., 129.
https://hdl.handle.net/21.15107/rcub_vinar_11492

Panić I, Pantić D, Radaković J, Rosić M, Jordanov D, Dodevski V, Čebela M. Synthesis and characterization of BiFeO3 fine powders. in 5CSCS : 5th Serbian Ceramic Society Conference : programme and the book of abstracts; June 11-13; Belgrade. 2019;:129.
https://hdl.handle.net/21.15107/rcub_vinar_11492 .

Panić, Ivan, Pantić, Dragan, Radaković, Jana, Rosić, Milena, Jordanov, Dragana, Dodevski, Vladimir, Čebela, Maria, "Synthesis and characterization of BiFeO3 fine powders" in 5CSCS : 5th Serbian Ceramic Society Conference : programme and the book of abstracts; June 11-13; Belgrade (2019):129,
https://hdl.handle.net/21.15107/rcub_vinar_11492 .