Project: 10PCBROMD din 01/09/2025 (PN-IV-PCB-RO-MD-2024-0442)

Contractor: National Institute of Materials Physics (NIMP)

Project leader: Dr. Alin Velea

Project type: Program 5.8 - European and International Cooperation, Subprogram 5.8.3 - Complex bilateral projects with the Republic of Moldova

Start date: 01/09/2025

End date: 31/08/2027

Contracting Authority: UEFISCDI

Project Abstract:

Within the framework of this project, it is expected to synthesize the artificial dimorphite (As4S3) that consists of α and β phases and to obtain thin films, nanocomposites and functional structures based on the same, study their nanostructure and the influence of α / β phases rate on optical and photoelectric properties, focused on in-situ control of this rate in order to point out the optimal technological conditions of their preparation. Another goal is the  intention to use the nanodimensional blocks of  α / β phases of dimorpite as inclusions in random network of glassy chalcogenides, thereby creating a kind of quantum dots that have to improve the photoactive properties of elaborated functional nanostructures and optoelectronic devices. These investigations are conceptually relevant and new worldwide. The expected results, from the scientific point of view, consist of identification and control of α / β phases rate in artificial dimorpite based thin films and functional structures, including those, with nanostructural α / β phases blocks imbibed in a glassy random network amed to form the quantum dots. From the application point of view - in elaboration of effective optical transducers for a wide spectral range, including the strong (bactericidal and stronger) UV region, verification the possibility of quantum dots creation based on α/β phases of dimorphite to obtain the high-performance functional structures for optoelectronics applications.