Raman scattering

Laboratory for Molecular Physics and Synthesis of New Materials

The laboratory has traditionally focused on studying on optical, structural and vibrational properties of nanostructural materials and molecules by vibrational spectroscopies (Raman and infrared). The laboratory capital instrument JobinYvon Horiba T64000 Raman spectrometer is used to analyze the laser light scattered on a very small amount of sample. Based on the observed energy transfer one can draw conclusions about the states of the system and particle interactions in the crystal, glass, liquid, etc.. In recent years, research focus shifted to the nanostructures. (project dr. sc. M. Ivanda).

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 Research and development of new functional materials and nanostructures in Molecular Physics Laboratory has been undertaken in the framework of several research topics:

  1. silicon nanostructures for advanced applications
  2. new ceramics and multiferroics
  3. molecular systems and vibrational analysis
  4. laser interactions and selforganizational processes
  5. new methods for Raman spectroscopy
  6. tittania nanostructures

The research topics:

The research is focused on nanostructural silicon thin films for advanced applications. The
Low Pressure Chemical Vapor Deposition (LPCVD) and Physical Vapor Deposition (PVD)
were implemented and developed at Ivanda’s group. The different type of silicon based
thin films are preparing like silicon reach oxide, silicon reach nitride, amorphous silicon,
polycrystalline silicon, doping with boron, phosphorus, erbium and europium; porous silcon
by electrochemical etching. The structural, optical, electrical and transport properties are
investigating with a goal of development of doped silicon nanostructured films (dots,
wires, porous structure) for thermoelectric elements (Peltier cooler and heater, low
temperature sensor); silicon nanocrystals thin films doped with rare earths for photonics
(spherical microresonators, optical amplifiers, lasers); and porous silicon for gas and/or
chemical sensing. Beside, different aspects of Raman scattering as a powerful analytic tool
has been developed: low frequency Raman scattering for determination of size distribution
of nanoparticles, portable Raman spectrometer as well as new techniques for SERS
spectroscopy.

Hrvoje Gebavi

+385 1 456 1122
1422

Vedran Đerek
dr. sc.

research assistant
+385 1 456 0982
1747

Davor Ristić
dr. sc.

Junior scientist
+385 1 456 1020
1420
098 662 825

Aleksandar Maksimović
dr. sc.

research associate
+385 1 457 1253
1591

Dubravko Risović
dr.sc.

senior scientist
+385 1 456 1122
1422

Vlasta Mohaček Grošev
PhD

senior research associate
+385 1 456 1020
1420

Marijan Gotić
Ph.D.

senior scientist
+385 1 456 1123
1582

Ankica Šarić
dr. sc.

Senior Research Associate
1392 1391

Hybrid Silicon Nanostructures for Sensing

Glavni istraživač / voditelj: Mile Ivanda

The project addresses fundamental physics and chemistry, properties and application of hybrid silicon nanostructures prepared by electrochemical anodisation and low pressure chemical vapour deposition (LPCVD). The project proposal consists of four interrelated research tasks: silicon/hybrid nanostructures for gas sensing; low light infrared detection; surface enhanced Raman spectroscopy (SERS) in food technology and spherical optical microresonators in low concentration molecular detection.

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New Functional Materials

Glavni istraživač / voditelj: Mile Ivanda

The Center’s research unit New Functional Materials (NFM) will be devoted to the synthesis, characterization, simulation and developing of new functional materials for support and implementation of high-tech industries in Croatia. One of the aims of the NFM is to assemble the efforts, integrate people and promote interdisciplinary research of the RBI laboratories in materials science, the sensor research group of the KONČAR – Institute for Electrotechnik, Institute of Physics and Department of Physics of Medical Faculty, University of Zagreb.

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XRPD

XRPD recording

Recording diffraction patterns of powder samples of the X-ray diffractometer APD 2000  (ItalStructures Novara, Italy).

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Raman spectrometer

Raman spectrometer Jobin Yvon T64000 with INNOVA 400 argon laser,

The list of applications to which the T64000 can be applied is impressive including, thin films, solid state devices, biological chemistry and techniques such as UV, resonance Raman, PL and laser fluorescence.

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XRPD recording

X-ray diffractometer APD 2000 (XRPD)

Recording diffraction patterns of powder samples of the X-ray diffractometer APD 2000  (ItalStructures Novara, Italy).

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Electron microscope

Scanning electron microscope

The JSM-7000F is a field-emission scanning electron microscope with state-of-the-art computer technology for the image-display system.

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X-ray diffractometer for thin films Siemens D 5000

X-ray diffractometer

Elipsometer Rudolph Auto EL IV

Elipsometer Rudolph Auto EL IV

T70 UV/VIS Spectrometer

T70 UV/VIS Spectrometer