Scientific results:
- Samples of nanocrystals and nanostructures from ABX3-type materials (where X is a halogen), as well as from II-VI semiconductors. Including the synthesis of nanowires, as well as nanocrystal films for their subsequent nanostructuring.
- Theoretical model of a nanoresonator based on a single semiconductor nanoparticle that is most optimal for laser generation at room temperature. Calculated dependences of the quality factor on the material and morphology of the substrate.
- Theoretical model of a nanoresonator, which is a one-dimensional array of nanoparticles that maintains high-quality photonic states for laser generation tasks, and is also adapted for manufacturing from semiconductor nanowires.
- Designs of metasurfaces that simultaneously provide critical coupling at the pump frequency and the laser generation frequency, which will simultaneously reduce the generation threshold and increase the power output from the laser.
- Perovskite platelet microcrystals CsPbCl3
on gallium phosphide metasurface. Photoluminescence spectra of samples. Dependences of photoluminescence intensity on the power of one-photon and two-photon optical excitation of samples.
- Thin film sample of perovskite nanocrystals CsPbBr3
on silicon metasurface. Scanning electron microscopy image of the sample. Dependence of photoluminescence intensity of the sample on the wavelength of optical pumping at the same power of exciting laser radiation.
- Method of direct femtosecond laser nanostructuring of light-emitting films deposited from a colloidal solution of CdSe/CdZnS nanoplatelets (NPLs) with a core/shell configuration. Geometrical parameters of the nanostructure (one-dimensional lattice) at which the NPL photoluminescence enhancement is observed.
- Samples of perovskite THz radiation detectors. Dependence of photocurrent on the nature of THz optical pumping of thin films and MAPbI3 and MAPbBr3 single crystals during sample gating with pulsed UV laser radiation.
- Novel hole-transport materials. Multilayer perovskite optoelectronic devices. AFM images of thin film morphology of hole-transport materials. Results of the test of the temporal stability of the device operation.
- An approach to carbon dots (CDs) formation based on impact laser heating. Photoluminescence spectra of CDs. Transmission electron microscopy images of CDs. X-ray photoelectron spectroscopy data of CDs.
- Efficient control of laser radiation in a hybrid system of a semiconductor microdisk laser and a silicon nanoparticle using magnetic dipole (MD) and magnetic quadrupole (MQ) Mie resonances is demonstrated. The fabricated microdisk lasers (MDLs) with InAs/InGaAs quantum dots support the laser generation mode with λ = 1285 nm on the fundamental magnetic transverse mode of 1,46 at room temperature. It was found that nanoparticles shift the peaks of MDL lasing by less than 1 nm and contribute to a decrease in the lasing threshold by 25 % and 14 % in the case of MD and MQ nanoparticles, respectively. The directionality of the radiation extracted from the MDL was determined for both cases.
- Model of nanophotonic design consisting of two silicon nanoparallelepipeds coated with a thin layer of phase transition material (Sb2Se3, GeSbTe) demonstrating spectral tunability or on-off effect of high-Q optical resonance of quasi-bound states in the continuum (quasi-BSC) type, suitable for observation at its lasing frequency.
- Theoretical approach for optimization of optical heating of a cavity in a nonlinear regime, which is capable of inducing spectral tunability of laser radiation. A new nanophotonic design based on the supercavity mode in cylindrical particles of doped silicon, demonstrating efficient conversion of light into heat.
- Spectral tunability laser based on a single perovskite nanowire CsPbBr3 interacting with HCl gas. Model describing the relationship between structure formation and the magnitude of the spectral shift of the laser line in a core-shell nanocrystal.
- It is shown that the CsPbBr3 film obtained by high-temperature recrystallization under pressure with an optimized thickness of ≈100 nm exhibits modal gain values of more than 10,000 cm–1, which is a record value among bulk perovskite materials. Such films will allow the fabrication of various lithographic photonic structures.
- Polariton lasing at room temperature, mediated by exceptional points, is achieved in a nonlocal perovskite metasurface fabricated by the nanoimprint lithography method. The investigated photonic design can lead to the creation of inexpensive continuous-wave lasers and electrically pumped lasers required for industrial applications.
- The exciton-polariton nature of lasing in thin perovskite films and nanowires is confirmed, with subsequent demonstration of an inversion-free Mie-resonance nanolaser with a size of 200 nm. The developed approach is promising for further compaction of coherent sources of the visible spectrum of radiation and the implementation of new-generation nanophotonic devices.
- A photonic device consisting of a perovskite microlaser and a TiO2 waveguide is fabricated using inkjet printing. Further development of inkjet printing will enable the production of optical chips with fully printed photonic elements.
- A bifunctional perovskite light-emitting device/light detector on a silicon substrate is demonstrated and its high technological potential is proven.
- Low-temperature electroluminescence of MSM-type microstructures based on single plate and whisker CsPbBr3
microcrystals is studied for the first time. A high current density (more than 2 kA cm-2) has been achieved in the microstructures, which is sufficient, according to reliable estimates, to observe laser generation under electrical excitation.
Education and personnel occupational retraining:
Internships:
7 PhD students (Khmelevskaya D., Azizov R.R., Anoshkin S.S., Masharin M.A., Markina D.I., Tonkaev P.A., Glebov N.V.) completed an internship at Bilkent University (Turkey) for the entire period of project implementation.
1 PhD student (Marunchenko A.) completed an internship at Lund University (Sweden)
1 PhD student (Sapozhnikova E.V.) completed an internship at Beijing University of Technology (China).
Defense of dissertations:
Markina Daria Igorevna. Dissertation for the degree of Candidate of Sciences "Spectrally tunable laser generation in lead-halide perovskite whisker micro- and nanocrystals".
Koshelev Kirill Leonidovich. Dissertation for the degree of PhD "Advanced trapping of light in resonant dielectric metastructures for nonlinear optics".
Mezenov Yuri Anatolyevich. Dissertation for the degree of Candidate of Sciences "Interaction of laser radiation with flexible metal-organic frameworks: structural modification and nonlinear optical response". Masharin Mikhail Alekseevich. Dissertation for the degree of Candidate of Sciences "Nonlinear exciton-polariton properties of planar optical resonators based on halide perovskites".
Tonkaev Pavel Andreevich. Dissertation for the degree of Candidate of Sciences "Control of the rate and intensity of radiative recombination in structures based on halide perovskites".
Verkhoglyadov Grigory Andreevich. Dissertation for the degree of Candidate of Sciences "Study of ion migration in organo-inorganic perovskites for the implementation of solar cells and LEDs".
Koryakina Irina Georgievna. Dissertation for the degree of Candidate of Sciences “Variation of structural and optical properties of optically sensitive nano- and microsized crystals using microfluidic technologies”.
Cooperation:
- “Russian Flexible Electronics Center” (RCFE), Troitsk - the only pilot plant to date for the production of flexible TFT matrices based on IGZO technology. Since 2021, active cooperation has been underway in the field of new materials and nanomaterials for photodetector and display matrices.
- JSC “SKTB Koltsova” - The company specializes in the development and production of input-output systems with the fifth acceptance (https://koltsov-kb.ru/). Today, work is underway to find approaches to the creation of segment LEDs and light-emitting matrices based on new nanomaterials.
- PJSC “Gazpromneft”. In 2022, the project “Study of technologies and methods of application of flexible electronics” was carried out for the customer, dedicated to the search for existing solutions and technologies (including additive (3D printing) of flexible electronics in relation to IoT / IIoT, wearable devices. Analysis of the obtained solutions and technologies, search for market offers in the field of creation of equipment and devices of flexible electronics for IoT / IIoT, wearable devices, identification of scenarios for the development of technologies / devices of flexible electronics, including those based on functional nanomaterials, the study of which is the focus of the laboratory's activities.
- Limited Liability Company "Organic and Printed Electronics Technologies". “TOPE” LLC is a subsidiary of JSC Central Research Institute “Cyclone”, which is part of the holding JSC “Russian Electronics” - the largest industry holding, which is based on 123 enterprises in the electronics industry - negotiations are underway in the field of cooperation on new materials for optoelectronics.
- "Laser Center" is a Russian research and production company that unites highly qualified specialists with unique experience in designing and manufacturing laser systems, implementing advanced laser technologies in various industries (https://www.newlaser.ru/).