19 Result(s)
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Raheleh Mohammadpour
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Article
Performance enhancement of a planar perovskite solar cell with a PCE of 19.29% utilizing MoS \(_2\) 2D material as a hole transport layer: a computational study
In recent years, there has been an exponential rush toward the optimization of solar cell (SC) performance utilizing novel materials. Overcoming the previous drawbacks of the SCs became possible through the sp...
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Article
Open AccessSelf-powered triboelectric nanogenerator sensor for detecting humidity level and monitoring ethanol variation in a simulated exhalation environment
Respiration stands as a vital process reflecting physiological and pathological human health status. Exhaled breath analysis offers a facile, non-invasive, swift, and cost-effective approach for diagnosing and...
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Open AccessCNT-PDMS foams as self-powered humidity sensors based on triboelectric nanogenerators driven by finger tap**
An increasing number of frequently applied portable electronics has raised the significance of self-powered systems. In this regard, triboelectric nanogenerators (TENGs) have drawn considerable attention due t...
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Open AccessA computational modelling study of excitation of neuronal cells with triboelectric nanogenerators
Neurological disorders and nerve injuries, such as spinal cord injury, stroke, and multiple sclerosis can result in the loss of muscle function. Electrical stimulation of the neuronal cells is the currently av...
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Open AccessDesign of effective self-powered SnS2/halide perovskite photo-detection system based on triboelectric nanogenerator by regarding circuit impedance
Self-powered detectors based on triboelectric nanogenerators (TENG) have been considered because of their capability to convert ambient mechanical energy to electrical out-put signal, instead of conventional u...
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Open AccessNanostructured versus flat compact electrode for triboelectric nanogenerators at high humidity
The triboelectric nanogenerator (TENG) is a promising technology for mechanical energy harvesting. TENG has proven to be an excellent option for power generation but typically TENGs output power drops signific...
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Enhancement of self-powered humidity sensing of graphene oxide–based triboelectric nanogenerators by addition of graphene oxide nanoribbons
A triboelectric nanogenerator (TENG) electrode sensitive to the adsorption of water molecules has been introduced to create a self-powered humidity sensor. Graphene oxide (GO) nanosheets and graphene oxide nan...
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Open AccessRoom temperature and high response ethanol sensor based on two dimensional hybrid nanostructures of WS2/GONRs
Here in this research, room temperature ethanol and humidity sensors were prepared based on two dimensional (2D) hybrid nanostructures of tungsten di-sulfide (WS2) nanosheets and graphene oxide nanoribbons (GONRs...
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Article
Open AccessFabrication of flexible self-powered humidity sensor based on super-hydrophilic titanium oxide nanotube arrays
Stable and flexible super-hydrophilic nanotubular-based titanium oxide electrode has been utilized as the active electrode of self-powered humidity sensor. TiO2 nanotubular electrodes fabricated through anodizati...
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Article
A novel composite gold/gold nanoparticles/carbon nanotube electrode for frequency-stable micro-electrical impedance tomography
A novel electrode structure is introduced for micro-electrical impedance tomography. The composite electrode structure is made up of gold nanoparticles (AuNPs) and carbon nanotube (CNT) which are deposited on ...
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Open AccessGraphene Oxide Papers in Nanogenerators for Self-Powered Humidity Sensing by Finger Tap**
Triboelectric nanogenerators (TENGs) offer an emerging market of self-sufficient power sources, converting the mechanical energy of the environment to electricity. Recently reported high power densities for th...
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Open AccessCoupled Ionic-Electronic Equivalent Circuit to Describe Asymmetric Rise and Decay of Photovoltage Profile in Perovskite Solar Cells
In this research, we employed transient photo-voltage rise and decay measurements to investigate the origin of slow unsymmetrical rise and decay profiles in single and triple cation perovskite solar cells. Dra...
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Open AccessOrigin of apparent light-enhanced and negative capacitance in perovskite solar cells
So-called negative capacitance seems to remain an obscure feature in the analysis of the frequency-dependent impedance of perovskite solar cells. It belongs to one of the puzzling peculiarities arising from th...
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Open AccessGold-Plated Electrode with High Scratch Strength for Electrophysiological Recordings
Multi electrode arrays (MEA) have been exploited in different electrophysiological applications. In neurological applications, MEAs are the vital interfaces between neurons and the electronic circuits with dua...
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Improving transparency in dye-sensitized nanostructured solar cells by optimizing nano-porous titanium dioxide photo-electrode
Today’s the technology based on dye-sensitized solar cells (DSSCs) has an important role in all photovoltaic system technologies. DSSCs can generate electricity with various degrees of transparency; this makes...
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Impedimetic biosensor for the DNA of the human papilloma virus based on the use of gold nanosheets
The authors describe an impedimetric method for the quantitation of the DNA of the human papilloma virus (HPV) type 16. A glassy carbon electrode (GCE) was modified with gold nanosheets and is shown to be supe...
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Article
Trap density measurement in three-dimensional nanostructured photoelectrode of titanium dioxide with various morphologies
Three-dimensional TiO2 nanostructures take advantages of large surface area and superior light-harvesting efficiency, as well as appropriate charge carrier transport and separation features. Here in this researc...
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Nitrogen-doped submicron-size TiO2 particles as bifunctional light scatterers in dye-sensitized solar cells
The structural, electrical, optical, and photovoltaic properties of aggregated submicron nitrogen-doped TiO2 particles (NTiO2) and the influence of utilizing them, in comparison with undoped ones, as the light-s...
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Article
Fabrication of gas ionization sensor based on titanium oxide nanotube arrays
Gas sensors have been fabricated based on field ionization from titanium oxide nanotubes grown on titanium foil. Ordered nanaotube arrays of titanium oxides were grown by the anodization method. We measured br...
