Design and synthesis of 4,5-diazafluorene ligands and their ruthenium (II) complexes for photoresponse performance on organic photodiodes

Yenel E., Yildirim M., Cebeci C., ERDEN İ., KOÇYİĞİT A., Kus M.

Journal of Materials Science: Materials in Electronics, cilt.34, sa.21, 2023 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 34 Sayı: 21
  • Basım Tarihi: 2023
  • Doi Numarası: 10.1007/s10854-023-10972-z
  • Dergi Adı: Journal of Materials Science: Materials in Electronics
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Applied Science & Technology Source, Chemical Abstracts Core, Communication Abstracts, Compendex, Computer & Applied Sciences, INSPEC, MEDLINE, Metadex, Civil Engineering Abstracts
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

Efforts have been increased to create efficient photodiodes using a variety of interface layers such as organics, insulators, polymers, and metal oxides. Therefore, in this study, novel 4,5-diazafluorene ligands and their ruthenium (II) complexes were designed, synthesized, and elucidated by using 1H NMR, FT-IR, UV-Vis, and mass spectroscopic (LC–MS) methods. The NMR, FT-IR, UV-Vis, and LCMS spectrometer results explained and confirmed the structure of the 4,5-diazafluorene ligands and their ruthenium (II) complexes. The obtained 4,5-diazafluorene ligands and their ruthenium (II) complexes were used as interfacial layer for Schottky type photodiode and characterized by I−V measurements for various light power intensities. Various diode parameters such as rectification ratio, series resistance, and barrier height as well as ideality factor values were extracted and discussed in details. The results revealed that the fabricated Schottky type photodiodes with 4,5-diazafluorene ligands and their ruthenium (II) complex interlayers can be employed and improved for optoelectronic applications.