B.I.Stepanov Institute of Physics of the National Academy of Sciences of Belarus offers consumers solid-state active substrates for surface enhanced Raman spectroscopy using silvered porous silicon under a manufacturing agreement and is looking for partners interested in a distribution services agreement.

B.I.Stepanov Institute of Physics of the National Academy of Sciences of Belarus developed a method for preparing solid-state active substrates for surface enhanced Raman spectroscopy (SERS) based on silvered porous silicon (PS).

Correlations have been established between the morphological parameters of the initial PS substrates and the SERS activity of silver nanostructures. The obtained substrates have a high SERS signal amplification factor, surface homogeneity, and retain their sensitivity during long-term storage in air (up to 1 month).

The possibility of detecting picomolar concentrations of a substance using silver-plated PS substrates has been demonstrated.

Scheme for deposition of silver onto the surface of PC substrate:


The main characteristics of the SERS-active substrates:

SERS amplification factor	2x108
6G rhodamine detection limit, pM	~ 10
Deviation of SERS signal over the surface, %	≤ 10

Application areas:
* ecology;
* plasmonics;
* biomedicine;
* nanotechnology;
* Materials Science;
* food industry;
* criminology, etc.

B.I.Stepanov Institute of Physics offers partners:
* solid-state active substrates for surface enhanced Raman spectroscopy using silvered porous silicon under a manufacturing agreement;
* solid-state active substrates for surface enhanced Raman spectroscopy using silvered porous silicon under a distribution services agreement.

Catalogue of Developments & Services of «B.I. Stepanov Institute of Physics» 2022, p.46.

SERS-active nanomaterials will significantly increase the sensitivity of optical sensor devices using the SERS effect and can be used for highly sensitive detection and study of trace amounts of complex organic compounds (harmful emissions, drugs), heavy metals, etc. correspond to the world level. The cost of the developed substrates is 5..7 US dollars, which is 2..3 times less than the cost of analogues.

The directions of scientific research and development of the B.I.Stepanov Institute of Physics are currently:
* Laser physics, development and creation of laser systems and technologies for medicine, ecology, industry, metrology and information protection;
* Physical and nonlinear optics, the disclosure and use of the patterns of propagation of high-power laser radiation in various media;
* Optical spectroscopy, development and application of methods and instruments for studying the properties and structure of various materials, including biotissues;
* Nanooptics and Nanomaterials;
* Quantum optics, investigation of quantum properties of electromagnetic radiation in computer science and cryptography;
* Investigation of the structure and properties of atomic-molecular structures and the creation of new optical materials, systems, instruments and technologies on this base;
* Plasma physics and plasma technologies: investigation of the plasma interaction with fields and matter; development and application of methods for plasma diagnostics, development of technological applications of gas-discharge and laser plasma
* Micro- and optoelectronics: LED technology, solar cells, microwave technology, microelectromechanical and sensor systems and devices;
* Physics of Fundamental Interactions and Nuclear Reactions - Investigating the Structure of the Microcosm and the Universe.

The B.I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus has scientific contacts with many countries. At present, more than 50 agreements on scientific and technical cooperation have been signed with organizations from 15 countries.

The Institute develops, manufactures and supplies laser and optical instruments for various purposes, as well as innovative components for laser technology, to many countries of the world (Russia, China, Germany, France, the United States, Saudi Arabia, India, etc.).

Consumers interested in purchasing solid-state active substrates for surface enhanced Raman spectroscopy using silvered porous silicon under a manufacturing agreement.

Partners interested in purchasing solid-state active substrates for surface enhanced Raman spectroscopy using silvered porous silicon under a distribution services agreement.