Electrical and photoresponse characteristics of 8-(1H-indol-3-ylazo)-naphthalene-2-sulfonic acid/n-Si photodiode

• Autorzy: Zedan Islam T. , El-Menyawy E. M. , Nawar H. H.

Identyfikatory

DOI

10.1016/j.opelre.2019.11.006

• Języki publikacji: EN

Abstrakty

EN

In this paper, of primary interest is to synthesis 8-(1H-indol-3-ylazo)-naphthalene-2-sulfonic acid (INSA) and to evaluate the main parameters of Au/INSA/n-Si/Al diode in dark and under illumination. Different techniques are used for interpreting the proposed INSA chemical structure. The dark current-voltage measurements were achieved in the temperature range of 293−413K. It is noticed that INSA films modify the interfacial barrier height of classical Au/n-Si junction. At low applied voltages, the I–V relation shows exponential behavior. The values ideality factor, n, and the barrier height, φ, are improved by heating. The abnormal trend of n and φ is discussed, and a homogenous barrier height of 1.45 eV is evaluated. The series resistance is also calculated using Norde's function and it changes inversely with temperature. The space charge limited current ruled with exponential trap distribution dominates at relatively high potentials, trap concentration and carriers mobility are extracted. The reverse current of the diode has illumination intensity dependence with a good photosensitivity indicating that the device is promising for photodiode applications.

Słowa kluczowe

EN

azo compounds; conduction mechanism; diode parameters; photodiodes

• Wydawca: Stowarzyszenie Elektryków Polskich ; Polska Akademia Nauk ; Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
• Czasopismo: Opto-Electronics Review
• Rocznik: 2019
• Tom: Vol. 27, No. 4
• Strony: 348--354
• Opis fizyczny: Bibliogr. 32 poz., fot.

Twórcy

autor

Zedan Islam T.

• Renewable Energy Science and Engineering Department, Faculty of Postgraduate Studies for Advanced Sciences, Beni-Suef University, Beni-Suef 62511, Egypt

autor

El-Menyawy E. M.

• Solid State Electronics Laboratory, Solid State Physics Department, Physics Research Division, National Research Centre, 33 El-Bohouth St., Dokki, Giza 12622, Egypt

autor

Nawar H. H.

• Department of Chemistry, Faculty of Education, Al-Zintan University, Libya

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).