Synthesis and characterization of a triphenylamine-dibenzosuberenone-based conjugated organic material and an investigation of its photovoltaic properties

Erdoğan, Musa; Horoz, Sabit

doi:10.1177/1747519820938022

Cited by 12 publications

(5 citation statements)

References 38 publications

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“…Organic materials are commonly used in electronic and optoelectronic devices including photodiodes, 1 thin-film transistors, 2 sensors, 3 and solar cells. 4,5 In particular, optoelectronic devices can be improved by using various materials such as organic molecules, organometallics, 6 and polymer structures. 7 Photodiodes are commonly used in photovoltaics due to their features.…”

Section: Introductionmentioning

confidence: 99%

Optical and Electrical Properties of Pyrene–Imine Organic Interface Layer Based on p-Si

Yeşildağ

Erdoğan

Sevgili

et al. 2021

J. Electron. Mater.

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In the present study, 1,4-phenylenebis-1-(pyren-1-yl)methanimine derivative 3 (C 40 H 24 N 2 ) was synthesized in high yield by condensation reaction of pyrene-1-carbaldehyde (1) with benzene-1,4-diamine (2). The structures of the obtained organic compound 3 were determined by nuclear magnetic resonance (NMR), infrared (IR), and high-resolution mass spectrometry (HRMS) spectroscopic techniques. An Al/C 40 H 24 N 2 /p-Si device was then fabricated using this pyrene-imine-based organic material 3 at the interface. The organic layer was coated on p-Si by the spin coating method, and ohmic and rectifier contacts were deposited by thermal evaporation. Besides optical measurements, such as ultraviolet (UV) absorbance and NMR, the electrical and photovoltaic properties were investigated by current-voltage (I-V) measurements in the dark and under different illumination conditions and capacitance-conductance-voltage (C-G-V) measurements at various frequencies. The electrical parameters of the device, such as ideality factor, barrier height, and series resistance, were calculated using three methods: thermionic emission theory (TE), Cheung method, and Norde functions. Using the TE method, the ideality factor value of the six devices (D1 to D6) obtained by coating the C 40 H 24 N 2 organic layer between the metal and the semiconductor was 2.02 to 2.06, and the barrier height value increased by between 0.77 eV and 0.78 eV compared with the reference device. According to these results, the organic interface coated between the metal and semiconductor increased the barrier height and rectifying ratio of the device. In addition to its rectification feature, the Al/C 40 H 24 N 2 /p-Si/Al device showed photodiode characteristics. Although its solar cell parameters were low, these photodiode characteristics indicate that this device could be used in optoelectronic applications.

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Section: Introductionmentioning

confidence: 99%

Optical and Electrical Properties of Pyrene–Imine Organic Interface Layer Based on p-Si

Yeşildağ

Erdoğan

Sevgili

et al. 2021

J. Electron. Mater.

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“…The method we reported in our previous study was used for J-V measurements. The suspension of the complex 4 was used as the sensitizer [23].…”

Section: General Remarksmentioning

confidence: 99%

Synthesis of pyrene-based Fe(II)-complex and its photovoltaic properties

2021

Global NEST: The International Journal

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<p>(E)-2-((pyren-1-ylmethylene)amino)phenol (3) containing pyrene linked through an imine bond to a phenol unit was synthesized and its Fe-complex 4 was prepared. The complex 4 is characterized by infrared (IR), x-ray diffraction (XRD) and UV-Vis spectroscopy techniques. The synthesized complex was used as a sensitizer in a solar cell structure. From the current density (J) - voltage (V) curve obtained, the values of the short-circuit current density (JSC), maximum current density (JM), open-circuit voltage (VOC) and maximum voltage (VM) for the complex 4 were determined as 6.68 mA /cm2, 4.73 mA /cm2, 0.56 V and 0.41 V, respectively. Using these parameters, the fill factor (FF) and power conversion efficiency value (η) of complex 4 were calculated as 0.52 and 1.94, respectively. This value shows that complex 4 can be used as an effective sensitiser in solar cell applications.</p>

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“…The purpose of activation is to improve the specific surface area or pore volume of activated carbon by opening new pores and enhancing existing pores. Apart from that, the activation can change or adjust the surface chemical structure of activated carbon with certain unique properties [6][7]. Activation is more important than carbonization in terms of the properties of activated carbon.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of activated carbon in the presence of hydrochar from chickpea stalk and its characterization

Genli¹,

Şahin²,

Baytar³

et al. 2021

JOR

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In this study, hydrochar was obtained from chickpea stalk by hydrothermal method. Then, activated carbon was synthesized by chemical activation method using ZnCl2 activator in the presence of this hydrochar. The effects of parameters such as impragnation rate (hydrochar/ZnCl2), impragnation rate, activation temperature and activation time on activated carbon synthesis were investigated. The iodine number of the obtained activated carbon was determined and its characterization was performed by SEM, BET, FTIR measurements. It was determined that the highest iodine number of synthesized activated carbon was 734 mg/g under conditions of impragnation time (24 hour), impragnation rate (1/2), activation temperature (400 oC), and activation time (45 minutes). The BET surface area of the activated carbon with the highest iodine number was determined as 572 m2 /g. The methylene blue number of synthesized activated carbon and hydrochar were found as 105 mg/g and 45 mg/g, respectively.

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Synthesis and characterization of a triphenylamine-dibenzosuberenone-based conjugated organic material and an investigation of its photovoltaic properties

Cited by 12 publications

References 38 publications

Optical and Electrical Properties of Pyrene–Imine Organic Interface Layer Based on p-Si

Optical and Electrical Properties of Pyrene–Imine Organic Interface Layer Based on p-Si

Synthesis of pyrene-based Fe(II)-complex and its photovoltaic properties

Synthesis of activated carbon in the presence of hydrochar from chickpea stalk and its characterization

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