Fabrication of dye-sensitized solar cells based on SnO2/ZnO composite nanostructures: A new facile method using dual anodic dissolution

Abrari, Masoud; Ahmadi, Morteza; Ghanaatshoar, Majid; Moazami, Hamid Reza; Davarani, Saied Saeed Hosseiny

doi:10.1016/j.jallcom.2018.12.299

Cited by 61 publications

(11 citation statements)

References 49 publications

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“…The synthesis of the compound oxide semiconductors is mainly carried out under vacuum or wet chemical conditions. − The vacuum-based processes are usually both expensive and time-consuming . Wet chemical synthesis methods are cheaper than vacuum-based methods but still take many hours or days to form nanostructures with high crystalline quality. , Plasma-based methods have also synthesized oxide semiconductors in liquids .…”

Section: Introductionmentioning

confidence: 99%

High-Voltage, High-Current Electrical Switching Discharge Synthesis of ZnO Nanorods: A New Method toward Rapid and Highly Tunable Synthesis of Oxide Semiconductors in Open Air and Water for Optoelectronic Applications

Malvajerdi

Abrari

Karimi

et al. 2021

ACS Appl. Mater. Interfaces

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A novel method of oxide semiconductor nanoparticle synthesis is proposed based on high-voltage, high-current electrical switching discharge (HVHC-ESD). Through a subsecond discharge in the HVHC-ESD method, we successfully synthesized zinc oxide (ZnO) nanorods. Crystallography and optical and electrical analyses approve the high crystal-quality and outstanding optoelectronic characteristics of our synthesized ZnO. The HVHC-ESD method enables the synthesis of ZnO nanorods with ultraviolet (UV) and visible emissions. To demonstrate the effectiveness of our prepared materials, we also fabricated two UV photodetectors based on the ZnO nanorods synthesized using the subsecond HVHC-ESD method. The UV-photodetector test under dark and UV light irradiation also had a promising result with a linear ohmic current−voltage output. In addition to the HVHC-ESD method's excellent tunability for ZnO properties, this method enables the rapid synthesis of ZnO nanorods in open air and water. The results demonstrate the preparation, highlight the synthesis of fine hexagonal-shaped nanorods under a second with controlled oxygen vacancies, and point defects for a wide range of applications in less than a second.

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Section: Introductionmentioning

confidence: 99%

High-Voltage, High-Current Electrical Switching Discharge Synthesis of ZnO Nanorods: A New Method toward Rapid and Highly Tunable Synthesis of Oxide Semiconductors in Open Air and Water for Optoelectronic Applications

Malvajerdi

Abrari

Karimi

et al. 2021

ACS Appl. Mater. Interfaces

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“…The introduction of Ag dopant can influence the optical properties of the ZnO nanorods and shift the absorption spectra toward the visible region. The optical band gap of the prepared samples (ZnO and SZO) was determined by the Tauc equation where α represents the absorption coefficient, A is an energy-independent constant, hv is the photon energy, and n is equal to 1/2 for a direct band gap and 2 for an indirect one. E g is the optical band gap (eV), and its corresponding wavelength can be obtained by determining the intersection point of the absorption edge wavelength straight line with the wavelength axis.…”

Section: Resultsmentioning

confidence: 99%

Stretchable and Flexible Metal–Semiconductor–Metal UV Photodetector Based on Silver-Doped ZnO Nanostructures Using a Drop-Casting Method

Hosseini,

Abrari,

Sharifi Malvajerdi

et al. 2023

ACS Appl. Nano Mater.

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“…The excellent optical and electrical properties have made them promising electron transport materials for solar cells [5,6] besides photocatalysis [7], thin-film transistors [8], and gas sensors [9]. Owing to their exceptional charge collection and transport properties, ZnO and SnO 2 have particularly benefited the emerging third-generation photovoltaic devices such as dyesensitized (DSSCs) and perovskite solar cells (PSCs) [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Electrospun Networks of ZnO‐SnO₂ Composite Nanowires as Electron Transport Materials for Perovskite Solar Cells

Irfan

Ünlü

Lê

et al. 2022

Journal of Nanomaterials

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Here, we report on the fabrication of one-dimensional (1D) zinc oxide-tin oxide (ZnO-SnO2, ZTO) hollow nanostructures by coaxial electrospinning followed by investigations of their electron transport properties in regular perovskite solar cells (PSCs). The as-electrospun nanowires (NWs) were obtained as core-shell nanostructures comprised of polymeric core and metal oxide precursors-polymer shell. Thermal analysis studies of the as-electrospun NWs revealed the optimum calcination temperature for complete removal of the polymer and formation of phase pure ZTO. The obtained nanostructured ZTO materials revealed a porous morphology with tubular nanostructures, i.e., NTs. The porous structure of nanoparticles, i.e., NTs in this case, is of particular interest due to the following reasons: (a) structure, particularly 1D, has a profound influence on the electron transport properties, and (b) suitable porosity helps in effective infiltration of perovskite material and hence supports better charge transport at the ZTO-perovskite interface. The nanomaterials were characterized by Fourier transform infrared (FTIR), diffuse reflectance spectroscopy (DRS), and energy dispersive X-ray spectroscopy (EDX) to confirm the presence/absence of functional groups, establish band gap energies ( E g ), and determine the elemental compositions, respectively. The ZTO NTs were used as electron transport media in the fabrication of perovskite solar cells (PSCs) and established the structure-property (electron transport) relationships. The highest solar to power conversion efficiency (PCE) of 13.0% (average: 11.90%) was measured for the PSCs based on ZTO NTs obtained by calcination of as-electrospun NWs at 800°C. It indicates the fact that the calcination temperature influenced the structure which as a result influenced the electron transport property of the material used as ETL in PSCs.

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Fabrication of dye-sensitized solar cells based on SnO2/ZnO composite nanostructures: A new facile method using dual anodic dissolution

Cited by 61 publications

References 49 publications

High-Voltage, High-Current Electrical Switching Discharge Synthesis of ZnO Nanorods: A New Method toward Rapid and Highly Tunable Synthesis of Oxide Semiconductors in Open Air and Water for Optoelectronic Applications

High-Voltage, High-Current Electrical Switching Discharge Synthesis of ZnO Nanorods: A New Method toward Rapid and Highly Tunable Synthesis of Oxide Semiconductors in Open Air and Water for Optoelectronic Applications

Stretchable and Flexible Metal–Semiconductor–Metal UV Photodetector Based on Silver-Doped ZnO Nanostructures Using a Drop-Casting Method

Electrospun Networks of ZnO‐SnO₂ Composite Nanowires as Electron Transport Materials for Perovskite Solar Cells

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Fabrication of dye-sensitized solar cells based on SnO2/ZnO composite nanostructures: A new facile method using dual anodic dissolution

Cited by 61 publications

References 49 publications

High-Voltage, High-Current Electrical Switching Discharge Synthesis of ZnO Nanorods: A New Method toward Rapid and Highly Tunable Synthesis of Oxide Semiconductors in Open Air and Water for Optoelectronic Applications

High-Voltage, High-Current Electrical Switching Discharge Synthesis of ZnO Nanorods: A New Method toward Rapid and Highly Tunable Synthesis of Oxide Semiconductors in Open Air and Water for Optoelectronic Applications

Stretchable and Flexible Metal–Semiconductor–Metal UV Photodetector Based on Silver-Doped ZnO Nanostructures Using a Drop-Casting Method

Electrospun Networks of ZnO‐SnO2 Composite Nanowires as Electron Transport Materials for Perovskite Solar Cells

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Electrospun Networks of ZnO‐SnO₂ Composite Nanowires as Electron Transport Materials for Perovskite Solar Cells