TY  - CONF
AU  - Danilović, Danijela
AU  - Božanić, Dušan K.
AU  - Pajović, Jelena
AU  - Garcia, Gustavo
AU  - Nahon, Laurent
AU  - Marić, T.
AU  - Đoković, Vladimir
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11555
AB  - Silver-silver sulfide (Ag-Ag2S) hybrid nanosystem which consists of plasmonic metal Ag and narrow band gap semiconductor Ag2S is typically studied as a photocatalyst under visible and NIR light [1,2]. Janus morphology of this system is especially interesting due to the possibility of initiating two different chemical reactions that are spatially separated on two halves of the system. Here, we present the fabrication of Ag-Ag2S Janus nanoparticles and the examination of their valence electronic structure. For the investigation of the electronic structure of isolated nanoparticles, we performed synchrotron radiation vacuum ultraviolet photoelectron spectroscopy using the velocity map imaging (VMI) technique. By using two different photon energies, hν = 9.5 eV and hν = 11 eV, we obtained angle-resolved photoelectron images. Photoemission spectra and the dependence of the asymmetry parameter α on the binding energy are derived from VMI images using modified p-Basex inversion method [3]. In addition, we coupled Ag-Ag2S nanoparticles to the TiO2 and studied the actuation of obtained hybrid nanosystem in a liquid medium under visible and NIR light.
PB  - Belgrade : Vinča Institute of Nuclear Sciences
C3  - PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade
T1  - Synchrotron radiation photoemission spectroscopy study of the valence band electronic structure of Ag-Ag2S Janus nanoparticles for the development of nanomotors propelled by NIR light
SP  - 35
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11555
ER  - 

@conference{
author = "Danilović, Danijela and Božanić, Dušan K. and Pajović, Jelena and Garcia, Gustavo and Nahon, Laurent and Marić, T. and Đoković, Vladimir",
year = "2023",
abstract = "Silver-silver sulfide (Ag-Ag2S) hybrid nanosystem which consists of plasmonic metal Ag and narrow band gap semiconductor Ag2S is typically studied as a photocatalyst under visible and NIR light [1,2]. Janus morphology of this system is especially interesting due to the possibility of initiating two different chemical reactions that are spatially separated on two halves of the system. Here, we present the fabrication of Ag-Ag2S Janus nanoparticles and the examination of their valence electronic structure. For the investigation of the electronic structure of isolated nanoparticles, we performed synchrotron radiation vacuum ultraviolet photoelectron spectroscopy using the velocity map imaging (VMI) technique. By using two different photon energies, hν = 9.5 eV and hν = 11 eV, we obtained angle-resolved photoelectron images. Photoemission spectra and the dependence of the asymmetry parameter α on the binding energy are derived from VMI images using modified p-Basex inversion method [3]. In addition, we coupled Ag-Ag2S nanoparticles to the TiO2 and studied the actuation of obtained hybrid nanosystem in a liquid medium under visible and NIR light.",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences",
journal = "PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade",
title = "Synchrotron radiation photoemission spectroscopy study of the valence band electronic structure of Ag-Ag2S Janus nanoparticles for the development of nanomotors propelled by NIR light",
pages = "35",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11555"
}

Danilović, D., Božanić, D. K., Pajović, J., Garcia, G., Nahon, L., Marić, T.,& Đoković, V.. (2023). Synchrotron radiation photoemission spectroscopy study of the valence band electronic structure of Ag-Ag2S Janus nanoparticles for the development of nanomotors propelled by NIR light. in PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade
Belgrade : Vinča Institute of Nuclear Sciences., 35.
https://hdl.handle.net/21.15107/rcub_vinar_11555

Danilović D, Božanić DK, Pajović J, Garcia G, Nahon L, Marić T, Đoković V. Synchrotron radiation photoemission spectroscopy study of the valence band electronic structure of Ag-Ag2S Janus nanoparticles for the development of nanomotors propelled by NIR light. in PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade. 2023;:35.
https://hdl.handle.net/21.15107/rcub_vinar_11555 .

Danilović, Danijela, Božanić, Dušan K., Pajović, Jelena, Garcia, Gustavo, Nahon, Laurent, Marić, T., Đoković, Vladimir, "Synchrotron radiation photoemission spectroscopy study of the valence band electronic structure of Ag-Ag2S Janus nanoparticles for the development of nanomotors propelled by NIR light" in PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade (2023):35,
https://hdl.handle.net/21.15107/rcub_vinar_11555 .

TY  - CONF
AU  - Božanić, Dušan K.
AU  - Garcia Macias, G.
AU  - Nahon, Laurent
AU  - Dojčilović, Radovan
AU  - Pajović, J.
AU  - Đoković, Vladimir
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11868
AB  - Aerosol photoemission spectroscopy became an important method for studying electronic structure of submicrometer particles without the influence of substrate [1]. It comprises irradiation of the focused particle beam by either vacuum-ultraviolet (VUV) or soft x-ray radiation under high vacuum conditions and subsequent detection and discrimination of the photoelectrons according to their kinetic energies and momenta [2-4]. As intermediates between atoms or molecules and macroscopic matter, nanometer-sized objects exhibit specific electronic and transport properties that strongly depend on their size, morphology and surface chemistry. Modification of nanoparticle surfaces by conjugation with molecules presents a convenient method of altering a wide range of physicochemical characteristics of the nanomaterials, which does not require development of new synthetic procedures. Furthermore, by a proper choice of molecules used in surface modification, additional properties of the hybrid nanostructures can be achieved, which could not be found in the starting materials. In this lecture, we will present the selected results of our investigations on hybrid nanostructures comprised of noble metal and metal oxide nanomaterials functionalized by biologically relevant molecules. Particular attention will be given to the vacuum-ultraviolet angle-resolved photoelectron spectroscopy (VUV ARPES) studies on isolated functionalized nanosystems performed at the DESIRS beamline. The emergence of the photoelectron circular dichroism in hybrid nanoparticles will be briefly discussed.
PB  - Belgrade : Vinča Institute of Nuclear Sciences, University of Belgrade
C3  - PHOTONICA2019 : 7th International School and Conference on Photonics & Machine Learning with Photonics Symposium : Book of abstracts
T1  - VUV Angle-resolved Photoelectron Spectroscopy on Isolated Hybrid Nanostructures
SP  - 63
EP  - 63
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11868
ER  - 

@conference{
author = "Božanić, Dušan K. and Garcia Macias, G. and Nahon, Laurent and Dojčilović, Radovan and Pajović, J. and Đoković, Vladimir",
year = "2019",
abstract = "Aerosol photoemission spectroscopy became an important method for studying electronic structure of submicrometer particles without the influence of substrate [1]. It comprises irradiation of the focused particle beam by either vacuum-ultraviolet (VUV) or soft x-ray radiation under high vacuum conditions and subsequent detection and discrimination of the photoelectrons according to their kinetic energies and momenta [2-4]. As intermediates between atoms or molecules and macroscopic matter, nanometer-sized objects exhibit specific electronic and transport properties that strongly depend on their size, morphology and surface chemistry. Modification of nanoparticle surfaces by conjugation with molecules presents a convenient method of altering a wide range of physicochemical characteristics of the nanomaterials, which does not require development of new synthetic procedures. Furthermore, by a proper choice of molecules used in surface modification, additional properties of the hybrid nanostructures can be achieved, which could not be found in the starting materials. In this lecture, we will present the selected results of our investigations on hybrid nanostructures comprised of noble metal and metal oxide nanomaterials functionalized by biologically relevant molecules. Particular attention will be given to the vacuum-ultraviolet angle-resolved photoelectron spectroscopy (VUV ARPES) studies on isolated functionalized nanosystems performed at the DESIRS beamline. The emergence of the photoelectron circular dichroism in hybrid nanoparticles will be briefly discussed.",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences, University of Belgrade",
journal = "PHOTONICA2019 : 7th International School and Conference on Photonics & Machine Learning with Photonics Symposium : Book of abstracts",
title = "VUV Angle-resolved Photoelectron Spectroscopy on Isolated Hybrid Nanostructures",
pages = "63-63",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11868"
}

Božanić, D. K., Garcia Macias, G., Nahon, L., Dojčilović, R., Pajović, J.,& Đoković, V.. (2019). VUV Angle-resolved Photoelectron Spectroscopy on Isolated Hybrid Nanostructures. in PHOTONICA2019 : 7th International School and Conference on Photonics & Machine Learning with Photonics Symposium : Book of abstracts
Belgrade : Vinča Institute of Nuclear Sciences, University of Belgrade., 63-63.
https://hdl.handle.net/21.15107/rcub_vinar_11868

Božanić DK, Garcia Macias G, Nahon L, Dojčilović R, Pajović J, Đoković V. VUV Angle-resolved Photoelectron Spectroscopy on Isolated Hybrid Nanostructures. in PHOTONICA2019 : 7th International School and Conference on Photonics & Machine Learning with Photonics Symposium : Book of abstracts. 2019;:63-63.
https://hdl.handle.net/21.15107/rcub_vinar_11868 .

Božanić, Dušan K., Garcia Macias, G., Nahon, Laurent, Dojčilović, Radovan, Pajović, J., Đoković, Vladimir, "VUV Angle-resolved Photoelectron Spectroscopy on Isolated Hybrid Nanostructures" in PHOTONICA2019 : 7th International School and Conference on Photonics & Machine Learning with Photonics Symposium : Book of abstracts (2019):63-63,
https://hdl.handle.net/21.15107/rcub_vinar_11868 .

TY  - CONF
AU  - Milosavljević, A.R.
AU  - Božanić, Dušan, K.
AU  - Danilović, Danijela
AU  - Sapkota, P.
AU  - Vukmirović, N.
AU  - Sadhu, S.
AU  - Dojčilović, Radovan
AU  - Huang, W.
AU  - Bozek, J.
AU  - Nicolas, C.
AU  - Nahon, Laurent
AU  - Ptasinska, S.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11858
AB  - We will describe a novel experimental technique that combines surface XPS and gas-phase synchrotron radiation-based XPS/VUV PES, for the investigation of the electronic structure of different nanocrystals that could be low-cost and high-efficient solar cell absorbers [1]. Surface XPS is performed in Notre Dame University (US) using SPECS Surface Nano Analysis GmbH, with a PHOIBOS 150 hemispherical energy analyzer. The synchrotron based XPS/PES is performed at the SOLEIL synchrotron (France). For gas-phase PES, the nanoparticle beam is produced by an atomizer and focused by the aerodynamic lens into the interaction region. On DESIRS beamline, the angle-resolved photoemission spectra were measured by double imaging DELICIOUS3 spectrometer (VMI for electrons and VMI-TOF for ions). On PLEIADES, the ±30o aperture wide-angle lens VG-Scienta R4000 electron analyzer was used to record the XPS. The nanoparticles are synthetized both at Vinca Institute of Nuclear Sciences (Serbia) and in Notre Dame. The experimental results are supported by DFT calculations performed at the Institute of Physics Belgrade (Serbia). Recent results for lead halide perovskites [1] will be presented, as well as preliminary results for lead-free materials such as Ag-Bi-I rudorffite nanosystems. The procedure to synthetize nanoparticles of this material for aerosol generation has been most recently developed at Vinca Institute of Nuclear Sciences. We were able to obtain a complete band alignment to the vacuum of the nanocrystals and investigate their surface properties with high sensitivity.
PB  - Belgrade : Vinča Institute of Nuclear Sciences, University of Belgrade
C3  - PHOTONICA2019 : 7th International School and Conference on Photonics & Machine Learning with Photonics Symposium : Book of abstracts
T1  - Measuring electronic properties of free-standing nanocrystals for solar cell absorbers
SP  - 14
EP  - 14
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11858
ER  - 

@conference{
author = "Milosavljević, A.R. and Božanić, Dušan, K. and Danilović, Danijela and Sapkota, P. and Vukmirović, N. and Sadhu, S. and Dojčilović, Radovan and Huang, W. and Bozek, J. and Nicolas, C. and Nahon, Laurent and Ptasinska, S.",
year = "2019",
abstract = "We will describe a novel experimental technique that combines surface XPS and gas-phase synchrotron radiation-based XPS/VUV PES, for the investigation of the electronic structure of different nanocrystals that could be low-cost and high-efficient solar cell absorbers [1]. Surface XPS is performed in Notre Dame University (US) using SPECS Surface Nano Analysis GmbH, with a PHOIBOS 150 hemispherical energy analyzer. The synchrotron based XPS/PES is performed at the SOLEIL synchrotron (France). For gas-phase PES, the nanoparticle beam is produced by an atomizer and focused by the aerodynamic lens into the interaction region. On DESIRS beamline, the angle-resolved photoemission spectra were measured by double imaging DELICIOUS3 spectrometer (VMI for electrons and VMI-TOF for ions). On PLEIADES, the ±30o aperture wide-angle lens VG-Scienta R4000 electron analyzer was used to record the XPS. The nanoparticles are synthetized both at Vinca Institute of Nuclear Sciences (Serbia) and in Notre Dame. The experimental results are supported by DFT calculations performed at the Institute of Physics Belgrade (Serbia). Recent results for lead halide perovskites [1] will be presented, as well as preliminary results for lead-free materials such as Ag-Bi-I rudorffite nanosystems. The procedure to synthetize nanoparticles of this material for aerosol generation has been most recently developed at Vinca Institute of Nuclear Sciences. We were able to obtain a complete band alignment to the vacuum of the nanocrystals and investigate their surface properties with high sensitivity.",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences, University of Belgrade",
journal = "PHOTONICA2019 : 7th International School and Conference on Photonics & Machine Learning with Photonics Symposium : Book of abstracts",
title = "Measuring electronic properties of free-standing nanocrystals for solar cell absorbers",
pages = "14-14",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11858"
}

Milosavljević, A.R., Božanić, D. K., Danilović, D., Sapkota, P., Vukmirović, N., Sadhu, S., Dojčilović, R., Huang, W., Bozek, J., Nicolas, C., Nahon, L.,& Ptasinska, S.. (2019). Measuring electronic properties of free-standing nanocrystals for solar cell absorbers. in PHOTONICA2019 : 7th International School and Conference on Photonics & Machine Learning with Photonics Symposium : Book of abstracts
Belgrade : Vinča Institute of Nuclear Sciences, University of Belgrade., 14-14.
https://hdl.handle.net/21.15107/rcub_vinar_11858

Milosavljević A, Božanić DK, Danilović D, Sapkota P, Vukmirović N, Sadhu S, Dojčilović R, Huang W, Bozek J, Nicolas C, Nahon L, Ptasinska S. Measuring electronic properties of free-standing nanocrystals for solar cell absorbers. in PHOTONICA2019 : 7th International School and Conference on Photonics & Machine Learning with Photonics Symposium : Book of abstracts. 2019;:14-14.
https://hdl.handle.net/21.15107/rcub_vinar_11858 .

Milosavljević, A.R., Božanić, Dušan, K., Danilović, Danijela, Sapkota, P., Vukmirović, N., Sadhu, S., Dojčilović, Radovan, Huang, W., Bozek, J., Nicolas, C., Nahon, Laurent, Ptasinska, S., "Measuring electronic properties of free-standing nanocrystals for solar cell absorbers" in PHOTONICA2019 : 7th International School and Conference on Photonics & Machine Learning with Photonics Symposium : Book of abstracts (2019):14-14,
https://hdl.handle.net/21.15107/rcub_vinar_11858 .