Bacterial MgSe complex nanoparticle synthesis and electrical characterization of fabricated Ag/MgSe/p-Si hetero-structure under dark and illumination
T. Çakıcı,
Ö. Gür Özdal,
N. Almousa,
F. Yıldız,
E. Kavaz Perişanoğlu,
H. Khalil,
Antoaneta Ene,
Hesham M.H. Zakaly
Affiliations
T. Çakıcı
Department of Electrical and Energy, Ispir Hamza Polat Vocational School of Higher Education, Ataturk University, Erzurum, Turkey
Ö. Gür Özdal
Department of Biology, Science Faculty Ataturk University, Erzurum, Turkey
N. Almousa
Department of Physics, College of Science, Princess Nourah bint Abdulrahman University.P.O.Box 84428, Riyadh, 11671, Saudi Arabia
F. Yıldız
Department of Physics, Science Faculty Ataturk University, Erzurum, Turkey
E. Kavaz Perişanoğlu
Department of Physics, Science Faculty Ataturk University, Erzurum, Turkey
H. Khalil
City of Scientific Research and Technological Application (SRTA-City), Alexandria, 21934, Egypt
Antoaneta Ene
INPOLDE Research Center, Department of Chemistry, Physics and Environment, Faculty of Sciences and Environment, Dunarea de Jos University of Galati, 47 Domneasca Street, 800008, Galati, Romania; Corresponding authors. INPOLDE Research Center, Department of Chemistry, Physics and Environment, Faculty of Sciences and Environment, Dunarea de Jos University of Galati, Romania.
Hesham M.H. Zakaly
Istinye University, Faculty of Engineering and Natural Sciences, Computer Engineering Department, Istanbul, 34396, Turkey; Institute of Physics and Technology, Ural Federal University, 620002, Yekaterinburg, Russia; Corresponding authors. Institute of Physics and Technology, Ural Federal University, 620002, Yekaterinburg, Russia.
The Pseudomonas aeruginosa OG1 strain was used in the bacterial synthesis of MgSe compound nanoparticles. The obtained samples were subsequently shaped into nanocrystalline MgSe films, and their optical, structural, morphological, and electrical properties were assessed on glass and p-Si substrates. Structural and morphological characterizations showed that the fabricated thin film samples have a polycrystalline structure with high quality and uniform grain sizes. The MgSe films produced on glass substrates exhibit a direct spectral band gap of 2.53 eV, according to optical measurements. The Ag/MgSe/p-Si layered diode structure was fabricated using the produced MgSe nanoparticles and then characterized by electrical properties. Electrical measurements were carried out under these two conditions to assess the effects of dark and illumination conditions on the band dynamics of the heterostructure devices. Under illumination, the barrier height decreased while the interface density states distribution increased. These measurements showed that using bacterial-assisted grown MgSe nanocrystalline films, the developed Ag/MgSe/p-Si device structure exhibited a remarkable photoresponse and stable rectifying property. Green synthesis methods for the production of these nanocrystalline materials have the potential to offer low-cost alternatives for photosensitive applications.
