Photovoltaic and electrical investigation of In/WOx/CuPc/In heterojunctions with light intensity-dependent NDR behaviours

Aktas, Sitki; ÜNAL, Fatih; Kurt, Mustafa; Koç, Mümin Mehmet; Arslan, Tayfun; Gür, Mahmut; Çoşkun, Burhan; Gorunmez, Zohre

doi:10.1016/j.optmat.2023.113709

Cited by 4 publications

(2 citation statements)

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“…However, since graphene is very expensive, it is important to produce low-cost organic diodes and photodiodes with electrical properties as good as graphene. Various studies have been conducted on the optoelectronic properties of phthalocyanine and it is predicted to be a good candidate for organic electronics applications [8,22]. In addition, phthalocyanine has been the subject of many studies in terms of its chemical properties [19].…”

Section: Introductionmentioning

confidence: 99%

“…However, when the studies published in the literature are examined, there are limited number of studies that examines the electrical and photodetector properties of photodiodes obtained from phthalocyanine in details. To the best of our knowledge, observations on its photodiode characteristics are not investigated even though the studies on the electrical or optical properties of phthalocyanine-based detectors are present [4,8,19,22]. Therefore, within the scope of our study, a photodiode formed from copper-phthalocyanine was produced and optoelectronic behaviours such as I-V, I-t, and photoresponse were investigated.…”

Section: Introductionmentioning

confidence: 99%

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Al/p-Si/CuPc/Al FOTODIYOTLARIN FOTOVOLTAIK İNCELENMESI

GÖRÜNMEZ GÜNGÖR,

COŞKUN,

İLHAN

et al. 2023

Kırklareli Üniversitesi Mühendislik Ve Fen Bilimleri Dergisi

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Phthalocyanine is used in many scientific and industrial fields such as nonlinear optical devices, electrophotographic applications, photodynamic therapy applications, infrared applications, sensor applications and catalyst applications. The applications of the phthalocyanine molecule in hetero-compound structures have been studied before. The obtained results revealed that phthalocyanine can be used in photodetector and photodiode applications. Organic detectors can be applied to flexible surfaces and their production costs are lower than metal-based photodetectors. Considering these features of organic detectors, phthalocyanine-based organic photodiodes were produced by using copper-phthalocyanine salts in our project. The optoelectronic properties of the produced Al/p-Si/CuPc/Al photodiodes were investigated, and their I – V, I – t, and photoresponsivity behaviours were evaluated. Since I-V measurements show that the current changes with the increase of illumination intensities, our study shows that Al/p-Si/CuPc/Al structures have photodiode properties.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Al/p-Si/CuPc/Al FOTODIYOTLARIN FOTOVOLTAIK İNCELENMESI

GÖRÜNMEZ GÜNGÖR,

COŞKUN,

İLHAN

et al. 2023

Kırklareli Üniversitesi Mühendislik Ve Fen Bilimleri Dergisi

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A light-detecting Ru(II)/Si heterojunction system involving a binuclear Ru (II) complex with pyridine-2,6-diimine (pydim) ligand

Koç,

Dayan,

Dere

et al. 2024

J Mater Sci: Mater Electron

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A meticulously detailed chemical procedure was employed to synthesize the Ru (II)-containing pyridine-2,6-diimine (pydim) organometallic complex. The resulting complex was then applied to Al-coated Si wafers using the spin-coating technique, leading to the production of Al/Ru(II) organometallic complex/n-Si/Al photodiodes. The light responsiveness of these photodiodes was demonstrated through the acquisition of I-V and I-t characteristics. Subsequently, essential parameters such as ideality factor, photosensitivity, barrier height, and photoresponse values were evaluated based on the obtained I-V and I-t plots. The calculations yielded ideality factors and barrier heights, resulting in average values of 6.41 and 0.552 eV, respectively. Furthermore, an in-depth analysis of the electrical properties of the diodes was conducted using G-V and C-V assessments, revealing a strong dependence on AC signal frequency. This investigation underscored that the observed frequency-related electrical behaviour is rooted in series resistance and interface states.

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