Publications by authors named "T E Shumilova"
Article Synopsis
- Thermogalvanic cells utilizing organic redox couples (OTGCs) are being researched for their ability to harvest low-grade heat, thanks to their high thermopower and adjustable chemical properties.
- The study focuses on improving the power output of these cells by synergistically combining fast redox reactions with thermogalvanic corrosion, enhanced by hydrochloric acid (HCl) in the electrolyte.
- As a result of these enhancements, the liquid quinone/hydroquinone (Q/HQ) OTGC shows a remarkable power output density and effective electrical conductivity, presenting a promising approach for increasing the efficiency of thermogalvanic cells.
Article Synopsis
- Different facets of perovskite crystals have unique atomic arrangements that affect their properties, particularly in films with tin oxide (SnO) as an electron transport layer.
- This study finds that tea saponin (TS), a natural compound, modifies SnO to enhance the growth of perovskite crystals on the (111) facet, improving crystal orientation and reducing defects.
- The TS-modified perovskite solar cells achieve a notable efficiency of 24.2%, with better open-circuit voltage and fill factor, alongside increased humidity tolerance and stability without the need for encapsulation.
2,2',7,7'-Tetrakis(N,N-di--methoxyphenylamine)-9,9'-spirobifluorene (spiro-OMeTAD), as an organic small molecule material, is the most commonly employed hole transport material (HTM) in perovskite solar cells (PSCs) because of its excellent properties that result in high photovoltaic performances. However, the material still suffers from low conductivity, leading to the necessary use of dopants and oxidative processes to overcome this issue. The spiro-OMeTAD oxidation process is highlighted in this review, and the main parameters involved in the process have been studied.
View Article and Find Full Text PDFIonic thermoelectric (i-TE) material with mobile ions as charge carriers has the potential to generate large thermal voltages at low operating temperatures. This study highlights the role of ions in i-TE hydrogels employing a poly(vinyl alcohol) (PVA) polymer matrix and a number of ion providers, e.g.
View Article and Find Full Text PDFSelective recognition of nucleotides with synthetic receptors is an emerging direction to solve a series of nucleic acid-related challenges in biochemistry. Towards this goal, a new aza-cyclophane with two different dyes, naphthalimide and pyrene, connected through a triamine linker has been synthesized and studied for the ability to bind and detect nucleoside triphosphates in an aqueous solution. The receptor shows Foerster resonance energy transfer (FRET) in fluorescence spectra upon excitation in DMSO, which is diminished dramatically in the presence of water.
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