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 . .