Synthesis of 2-amino-4-(4-(methylamino)phenyl)-6-phenylnicotinonitrile as a new additive for the passivation of the TiO2 surface and retarding recombination in dye-sensitized solar cells

Mazloum-Ardakani, Mohammad; Arazi, Rezvan; Haghshenas, Mahnoosh; Tamaddon, Fatemeh; Alizadeh, Masoumeh

doi:10.1016/j.electacta.2018.02.011

Cited by 14 publications

(9 citation statements)

References 24 publications

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“…Iodine (I 2 ) and lithium iodide (LiI) were obtained from Merck. Titania pastes were prepared in research laboratory [3]. Dye solutions (0.3 mM) containing different amounts of CA were prepared and used to sensitize the TiO 2 electrodes.…”

Section: Methodsmentioning

confidence: 99%

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Improving the effective photovoltaic performance in dye-sensitized solar cells using an azobenzenecarboxylic acid-based system

Mazloum-Ardakani

Arazi

2019

Heliyon

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In this research, an azobenzenecarboxylic acid was used as a sufficient co-adsorbent in combination with N719 dye. As it is found from the results, an optimized concentration of the co-absorbent leads to the highest efficiency. The dye-sensitized solar cells (DSSCs) parameters such as short-circuit current (Jsc), open-circuit voltage (Voc) and conversion efficiency (η) were obtained -14.87 mA/cm 2 , 0.765 V and 5.20% respectively. Based on the results, the N719/Azobenzenecarboxylic-based system shows a significant increase in Voc and Jsc, resulting in an ∼21% improvement in the efficiency. A higher conversion efficiency for the co-adsorbent-based systems was assigned to their enhanced η, which is attributed to reduced dye aggregation, higher electron injection and increased Voc. This corresponded to the improved electron density in the TiO 2 conduction band of the photoanode and reduced charge recombination revealed through electrochemical impedance spectroscopy measurements. Also, evidence was provided for a long charge life time and a high resistance of charge recombination for the co-absorbed solar cells.

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Section: Methodsmentioning

confidence: 99%

“…with a reported η of >10% [2]. Since then, efforts have been made to improve the performance and increase the efficiency of these particular cells [3, 4, 5, 6]. Currently, the maximum reported η is 13% [7]; There are three unwanted processes that lead to losses in Voc and Jsc.…”

Section: Introductionmentioning

confidence: 99%

Improving the effective photovoltaic performance in dye-sensitized solar cells using an azobenzenecarboxylic acid-based system

Mazloum-Ardakani

Arazi

2019

Heliyon

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“…After cleaning the FTO glass substrates using an ultrasonic bath containing water and acetone (15 min), they were treated with TiCl 4 (40 mM) for 30 min at 70 • C (TiCl 4 pre-treatment). The lab-made TiO 2 paste [19] was spread onto the substrates to prepare photoanode electrodes with an optimized thickness. Then the prepared TiO 2 electrodes were immersed into the 40 mM TiCl 4 solution and heated at 70 • C for 30 min to improve electrical contact and adhesion (TiCl 4 post-treatment) and then sintered at 500 • C for 30 min.…”

Section: Assembling Of Dsscs Based On Different Counter Electrodesmentioning

confidence: 99%

“…Since the CE in the DSSC is responsible for catalyzing the regeneration of I − from I − 3 (I − 3 + 2e − →3I − ) [19], to understand whether the PEDOT/Ag-CuO nanocomposite CE is suitable for improving the electrocatalysis of different DSSCs, electrochemical properties of as-synthesized PEDOT, PEDOT/Ag-CuO nanocomposite and platinum were measured using CV. Figure 3 presents the two sets of redox peaks that are attributed to iodide-triiodide oxidation (1) and triiodide-iodine reduction (2).…”

Section: Cyclic Voltammetrymentioning

confidence: 99%

Enhancement of photovoltaic performance using a novel photocathode based on poly(3,4-ethylenedioxythiophene)/Ag–CuO nanocomposite in dye-sensitized solar cells

Mazloum‐Ardakani¹,

Arazi²

2020

Comptes Rendus. Chimie

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A novel counter electrode (CE) based on a silver and copper oxide nanocomposite is developed and characterized by XRD and FE-SEM. A polymeric system containing poly(3,4ethylenedioxythiophene) (PEDOT) is employed as the conductive polymer to prepare a transparent CE for a dye-sensitized solar cell (DSSC) device. Electrochemical analysis is used to study the catalytic activity of the reduction of triiodide ions in different DSSC-based CEs. To study the effect of photoelectrode modification on charge-transfer resistance, alternating current impedance spectroscopy is carried out. Power conversion efficiency and short-circuit current density (J SC ) increase from 8.01% to 9.06% and 16.18 to 17.79 mA/cm 2 , respectively, due to the significantly improved electrical conductivity and electrocatalytic activity of the novel PEDOT/Ag-CuO nanocomposite-based CE.

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“…While in the DSSC framework, is considered as the major component, a number of metal oxide geometries are being initiated such as copper oxide (CuO), nickel oxide (NiO), titanium dioxide (TiO 2 ), zinc oxide (ZnO). The starting material for mixed metal oxide (MMOs) using layered double hydroxides (LDHs) has demonstrated superior performance for DSSC application due to their relatively low-cost and forthright preparation process [28][29][30][31][32][33]. The electrolyte added in the additive consumes a significant effect on the DSSCS of the photovoltaic performance by the transfer of the photoinjected electron at TiO 2 surface to the redox couple electrolyte and reducing the back electron [34].…”

Section: Introductionmentioning

confidence: 99%

Addition of Organic Compounds in Gelatin-biopolymer Gel Electrolyte for Enhanced Dye-sensitized Solar Cells

Devikala,

Maryleedarani Abisharani

2024

Advances in Solar Photovoltaic Energy Systems

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This chapter introduced a new series of organic compound additives like thiophene 2,5-dicarboxylic acid (TDA), sulfanilamide (SAA), 2,6-diamino pyridine (DAP), dibenzo-18-crown-6 (DBC) and 2,6-pyridine dicarboxylic acid (PDA) with gelatin/KI/I2 consist gel polymer electrolytes for dye-sensitized solar cells (DSSCs) application. Nowadays, it is focusing on biopolymers for preparing gel electrolytes for DSSCs application which is a conventional renewable energy source. Biopolymers are abundant in nature, and they are non-toxic, thermally stable, environmentally friendly, low-cost, and have good mechanical and physical properties. The introduced novel gelatin (GLN) biopolymer-based gel electrolytes play a role in improving ionic conductivity and stability, and it also play a better ability for ionic mobility. The low-cost and commercialized organic additive molecules with electron donors like S, O and N elements were strongly coordinated on the surface TiO2 and fermi level shift into negative potentials. The organic additive compound SAA achieved a very active additive and easily reduced the recombination reaction between the surface of TiO2 and I3− ions. This phenomenon readily improves the stability and overall η of the DSSC. During the DSSCs process, intrinsic charge carrier transfer between both electrodes as well as the continuous regeneration of the dye molecules. The surface study and conductivity of prepared gelatin-based gel electrolyte with N, S and O-based additives were characterized by fourier transform infrared spectroscopy (FTIR), UV-visible, X ray diifraction (XRD), Electrochemical Impedance Spectroscopy (EIS) and dye-sensitized solar cells (DSC), respectively. Furthermore, to examine the adsorption behaviour of organic additives on TiO2 (101) surface and negative fermi level shift on TiO2 surface were analysed by density functional theory (DFT) theoretical study.

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Synthesis of 2-amino-4-(4-(methylamino)phenyl)-6-phenylnicotinonitrile as a new additive for the passivation of the TiO2 surface and retarding recombination in dye-sensitized solar cells

Cited by 14 publications

References 24 publications

Improving the effective photovoltaic performance in dye-sensitized solar cells using an azobenzenecarboxylic acid-based system

Improving the effective photovoltaic performance in dye-sensitized solar cells using an azobenzenecarboxylic acid-based system

Enhancement of photovoltaic performance using a novel photocathode based on poly(3,4-ethylenedioxythiophene)/Ag–CuO nanocomposite in dye-sensitized solar cells

Addition of Organic Compounds in Gelatin-biopolymer Gel Electrolyte for Enhanced Dye-sensitized Solar Cells

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