Applied Physics A

, 125:204 | Cite as

Photosensing properties of ruthenium(II) complex-based photodiode

  • Arife Gencer ImerEmail author
  • Aysegul Dere
  • Abdullah G. Al-Sehemi
  • Osman Dayan
  • Zafer Serbetci
  • Ahmed A. Al-Ghamdi
  • Fahrettin Yakuphanoglu


Ru(II) complex containing 2,6-di(1H-pyrazol-3-yl)pyridine ligand was synthesized to prepare organic-based photodiode. After forming the back contact with aluminum metal on p-Si by thermal evaporation, Al/Ru(II) complex/p-Si heterojunction was constructed by inserting Ru(II) complex organic layer into Si substrate. The fundamental electrical parameters and photosensing properties of fabricated heterojunction were investigated by current–voltage and capacitance–voltage measurements under the dark and different light intensities. The studied device exhibits a good rectifying property with rectification ratio of 2.4 × 104 at ± 7 V. It is observed that the photosensing properties such as light sensitivity and photoconductive responsivity of the photodiode based on Ru(II) complex are strongly dependent on the illumination power. The transient measurements show that the heterojunction device has a good photo switching property in the application of the photodiode, photoconductor and photocapacitor. The obtained results declare that the fabricated Ru(II)-based heterojunction device can be used in the organic-based optoelectronic device applications as a photodiode, photosensor, and optical sensor.



Authors would like to acknowledge the support of the King Khalid University for this research through a Grant RCAMS/KKU/007-18 under the (Research Center for Advanced Materials Science) at King Khalid University, Kingdom of Saudi Arabia.


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Arife Gencer Imer
    • 1
    Email author
  • Aysegul Dere
    • 2
  • Abdullah G. Al-Sehemi
    • 3
    • 4
    • 5
  • Osman Dayan
    • 6
  • Zafer Serbetci
    • 7
  • Ahmed A. Al-Ghamdi
    • 8
  • Fahrettin Yakuphanoglu
    • 9
  1. 1.Department of Physics, Faculty of ScienceVan YuzuncuYil UniversityVanTurkey
  2. 2.Nanoscience and Nanotechnology LaboratoryFirat UniversityElazigTurkey
  3. 3.Department of Chemistry, Faculty of ScienceKing Khalid UniversityAbhaSaudi Arabia
  4. 4.Research Center for Advanced Materials ScienceKing Khalid UniversityAbhaSaudi Arabia
  5. 5.Unit of Science and Technology, Faculty of ScienceKing Khalid UniversityAbhaSaudi Arabia
  6. 6.Department of Chemistry, Faculty of Arts and ScienceÇanakkale Onsekiz Mart UniversityÇanakkaleTurkey
  7. 7.Department of Chemistry, Faculty of Arts and SciencesBingol UniversityBingolTurkey
  8. 8.Department of Physics, Faculty of ScienceKing Abdulaziz UniversityJeddahSaudi Arabia
  9. 9.Department of Physics, Faculty of ScienceFirat UniversityElazigTurkey

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