{"id":92510,"date":"2025-06-24T11:34:05","date_gmt":"2025-06-24T09:34:05","guid":{"rendered":"https:\/\/port.lukasiewicz.gov.pl\/?post_type=projects&p=92510"},"modified":"2025-12-19T11:00:29","modified_gmt":"2025-12-19T10:00:29","slug":"development-of-perovskite-light-emitting-dressings-for-accelerated-wound-healing-peroled","status":"publish","type":"projects","link":"https:\/\/port.lukasiewicz.gov.pl\/en\/projekty-badawcze\/development-of-perovskite-light-emitting-dressings-for-accelerated-wound-healing-peroled\/","title":{"rendered":"Development of Perovskite Light Emitting Dressings for Accelerated Wound Healing – PEROLED"},"content":{"rendered":"\t\t
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Project funded by the National Science Centre under the \u201cPOLONEZ BIS 2<\/strong>\u201d call<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Project number: UMO-2022\/45\/P\/ST3\/04170<\/strong>
Total project value: 1,117,080.00 PLN<\/strong>
Total funding: 1,117,080.00 PLN<\/strong>
Project implementation period: 04\/01\/2022 \u2013 03\/31\/2025<\/strong>
Project leader: Dr. Somnath Mahato<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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When small modifications are introduced in a material synthesis process, significant changes may occur in its physical properties, such as structural, optical, or electrical characteristics. Therefore, even minor adjustments in material synthesis can lead to substantial differences in the performance of optoelectronic devices. Recently, halide perovskite nanocrystals (NCs), commercially available and produced via the conventional hot-injection method, have shown promising potential for optoelectronic applications\u2014particularly in light-emitting devices (LEDs)\u2014due to their intrinsically high photoluminescence quantum efficiency (PLQE), excellent color purity, and tunable emission.<\/p>

Due to intensive research conducted over the past five years, the external quantum efficiency (EQE) of halide-perovskite LEDs has increased rapidly, surpassing 20%, which is comparable to existing lighting technologies. However, synthesizing stable, single-phase, monodisperse halide perovskite nanocrystals using the conventional hot-injection method remains challenging due to fast reaction kinetics and an only partially understood ligand chemistry.<\/p>

The objective of this project is to synthesize air-stable, single-crystal, monodisperse, single-phase halide perovskite nanocrystals [CsPbX\u2083 (X = Cl, Br, I)] using a modified hot-injection method. Surface passivation of these nanocrystals with functional ligands (1-dodecanethiol or 1-octadecanethiol) and B-site doping with Cu\u00b2\u207a ions will, for the first time, significantly reduce surface trap states, increase vacancy formation energy, improve photoluminescence quantum yield, and substantially enhance stability in air.<\/p>

Leveraging their exceptional PLQE, high color purity, and tunability, the project aims to develop perovskite electroluminescent electrochemical cells (PeLECs) on flexible substrates for wound-healing applications. The produced PeLECs will emit different colors (red, green, and blue) within the visible spectrum, with intensities comparable to natural sunlight. Light intensity will be enhanced through the application of electron-transport layers (ETL) or hole-transport layers (HTL).<\/p>

The project also includes research on the effect of red-, green-, and blue-emitting PeLECs on wound-healing processes. Red light (620\u2013750 nm) stimulates the growth of keratinocytes and fibroblasts in deeper skin layers. Green light (500\u2013565 nm) supports healing by inducing migratory and proliferative mediators, offering a potentially effective therapeutic strategy. Blue light (450\u2013495 nm) provides well-documented antibacterial effects, particularly on the skin surface.<\/p>

To ensure successful implementation, the system will consist of three main components:<\/p>

\u2022 Synthesis of halide perovskite nanocrystals using a modified hot-injection method
\u2022 Fabrication and characterization of flexible PeLECs, as well as optimization of PEDOT:PSS as the HTL and zinc oxide as the ETL to improve PLQE and EQE
\u2022 Application of light therapy to enhance various stages of wound healing, including identifying barriers to clinical adoption of selected light therapies and demonstrating how the new approach can improve current wound-care standards<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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