Electrical property investigation of the Au/n-Si and Au/PVA+benzimidazole Co complex/n-Si diodes under ultraviolet illumination

Polyvinyl alcohol (PVA) was doped using the di[1-(2-ethoxyethyl)-5-nitrobenzimidazole] cobalt dichloride and this polymeric composite was used as an interface in Au/n-Si diodes. The basic electrical properties of these fabricated Au/n-Si (MS) and Au/PVA+Co complex/n-Si (MPS) diodes were examined mea...

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Bibliographic Details
Published in:Journal of materials science. Materials in electronics 2021-03, Vol.32 (5), p.6323-6330
Main Authors: Gökçen, Muharrem, Taran, Songül, Orhan, Ersin
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry and Materials Science
Cobalt
Dichlorides
Diodes
Electrical measurement
Electrical properties
Gold
Illumination
Materials Science
Optical and Electronic Materials
Polyvinyl alcohol
Room temperature
Thermionic emission
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Summary:Polyvinyl alcohol (PVA) was doped using the di[1-(2-ethoxyethyl)-5-nitrobenzimidazole] cobalt dichloride and this polymeric composite was used as an interface in Au/n-Si diodes. The basic electrical properties of these fabricated Au/n-Si (MS) and Au/PVA+Co complex/n-Si (MPS) diodes were examined measuring voltage-dependent current ( I ( V )) data in various ultraviolet illumination intensities and room temperature. Electrical parameters of the MS and MPS diodes were calculated by thermionic emission, Norde, and Card & Rhoderick method. It was found that the ideality factor ( n ) values of the MS diode increased from 6.7 to 13.4 while the MPS ones increased from 3.4 to 7.5 with increasing illumination. Also, the photo-responsivity (PR) of MPS diode was obtained for P  = 50 mW/cm 2 (365 nm UV) as 0.29 A/W at − 5.00 V and 4.01 mA/W at 0 V.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-021-05348-0