Search by tag «Perovskite» 31 results

• Russian Scientists Develop Perovskite Metasurfaces for Smart Glass

  Perovskite thin films will make it possible to turn normal glass into smart surfaces that can display information in AR devices and convert solar energy into electricity. The research of the group headed by ITMO scientists has been published in Laser & Photonics Reviews. 

  10.11.2020

• Picture of the Week: Perovskite Inorganic Quantum Dots

  The effect that can be seen on the picture is called photoluminescence. Quantum dots made out of cesium perovskite receive ultraviolet light that gets absorbed by quantum dots and then re-emitted, but in the spectral range.

  28.08.2020

• Picture of the Week: ITMO Researchers' "Lightsaber"

  Well, it’s actually a demonstration of light distribution in waveguides with an active medium.

  21.08.2020

• ITMO Student Alexander Berestennikov Becomes Recipient of Zhores Alferov Scholarship

  The PhD student was recognized for his works on perovskite nanophotonics. In total, four Russian PhD students and six young Russian scientists were awarded the scholarship. Alexander Berestennikov spoke with ITMO.NEWS about this achievement, his research, and why he loves being a scientist.

  31.07.2020

• Scientists Create Smallest Semiconductor Laser That Works in Visible Range at Room Temperature

  An international team of researchers announced the development of the world’s most compact semiconductor laser that works in the visible range at room temperature. According to the authors of the research, the laser is a nanoparticle of only 310 nanometers in size (which is 3,000 times less than a millimeter) that can produce green coherent light at room temperature. The research article was published in ACS Nano.

  08.06.2020

• Scientists Develop Light-emitting Composite Material Based on Perovskite Nanocrystals with Air- and Water Resistant Optical Characteristics

  An international team of scientists including researchers from ITMO University has developed a new composite material based on perovskite nanocrystals to fabricate miniature light sources with improved performance. Protection of perovskite nanocrystals within porous glass microspheres made it possible to increase their stability by almost 3 times. Moreover, the subsequent coating of these particles with polymers resulted in the fabrication of water-dispersible luminescent microspheres based on CsPbBr3 nanocrystals. This method of fabrication is especially important for the implementation of perovskite nanocrystals in diverse biological applications. The results have been published in ChemNanoMat.

  29.04.2020

• Scientists Propose a Carbon Dot-Based Method for Increasing the Efficiency of Solar Cells and LED

  An international group of scientists, including some from ITMO University, has proposed a method that allows for significantly increasing the efficiency of solar cells and light-emitting diodes. The scientists managed to achieve this result by augmenting the auxiliary layers of the devices responsible for electron transport rather than working with the main active layer. The work has been published in the journal Advanced Functional Materials. 

  30.03.2020

• It’s All about Carboneum: How Carbon-Based Materials Help Create Efficient and Safe Solar Cells

  Solar cells have already become a symbol of modern technologies and fight for the environment. At the same time, the solar power industry is always on the go: manufacturers strive to improve the efficiency of their devices, and scientists and engineers look for ways to produce solar cells that wouldn’t require highly toxic materials. One of such methods has to do with using nanostructures made of carbon, a safe, affordable and reliable material, for producing solar cells’ supplementary layers. A team of scientists that included researchers from ITMO university has recently published a review on the recent advances in this field. ITMO.NEWS spoke to one of its authors, ITMO’s senior researcher Aleksandr Litvin, and learned how carbon helps make solar cells safer and more efficient.

  23.03.2020

• ITMO University Scientist Sergey Makarov Receives President of Russia Award

  Sergey Makarov, Head of ITMO University’s Laboratory of Hybrid Nanophotonics and Optoelectronics and senior research associate at the Faculty of Physics and Engineering, became a laureate of the President of Russia Award for Young Scientists in the Field of Science and Innovation. The official results have been announced today, February 3, in Moscow, with the related decree published on the website of the president of Russia. The award recognized the physicist’s contribution to the studies of optical properties of resonant semiconductor nanoparticles the use of which can help improve solar cells and optical microscopes, and, in the future, advance in the fight against cancer as well as the creation of optical computers. More about the researcher’s work and its results in this article by ITMO.NEWS.

  03.02.2020

• Light Can Cool: ITMO Scientists Propose Concept of Optical Nano-Refrigerator

  A group of scientists from ITMO University, including one Master’s and one PhD student, has proposed a new method for quick cooling-down of surfaces using perovskite and light nanoparticles. In the future, this principle can be used to cool nano-lasers in optical chips, increase the life of solar panels, and create smart glass. The article was published in the journal Nanoscale.

  07.10.2019