Abstract. The electrical characteristics of funnel-shaped silicon nanowire (SiNW) solar cells are introduced and numerically analyzed. The funnel-shaped NW consists of a cylinder over a conical unit. Its aim is to maximize the optical absorption over a large wavelength range and hence the electrical efficiency by increasing the number of resonance wavelengths or by enlarging the …
Flexible fiber-shaped quantum dot-sensitized solar cells (QDSSCs) were fabricated by assembling the CdS/CdSe quantum dot deposited TiO 2 nanotube photoanodes and different metal sulfide (i.e., NiCo 2 S 4, Ni 9 S 8, and Co 3 S 4) counter electrodes (CEs) all grown on Ti wires with a liquid or gel polysulfide electrolyte ing the NiCo 2 S 4 CEs, the best power …
Cathode interfacial materials (CIMs) stand as critical elemental in organic solar cells (OSCs), which can align energy levels, and foster ohmic contacts between the cathode and active layer of the OSCs. Nevertheless, the lagging advancement in CIMs has concurrently engendered the oversight of theoretical inquiries pertaining to the impact of molecular …
Organic solar cells are regarded as a promising strategy for green-energy utilization. Photoactive materials and device technologies have been continually explored. Recently, in the Journal of the American Chemical …
The high-efficiency solar cells depend on the absorption capability of the absorber elements on the solar cell surface to absorb most of the solar radiation. The ideal solar absorber exhibits unity absorption in a wide spectral range. ... The conical-shaped antenna with a diameter (D) of 189 nm has a strong effect on the wavelength around 600 ...
The latest advancement of fiber-shaped dye-sensitized solar cells will be introduced in this chapter. The mainstream configurations of fiber-shaped dye-sensitized solar cells, including coaxial and twisting structures, are first illustrated, focusing on the materials, fabrication technique, and performance optimization.
The Saudi team created the spherical solar cell using the monocrystalline silicon solar cells that currently account for almost 90 percent of the world''s solar power production.
In this paper, S-shaped characteristics of organic solar cells (OSCs) are analyzed by a drift–diffusion model which includes charge carrier surface recombination and thermal injection on the anode and cathode through boundary conditions. By varying surface recombination velocities (SRVs) for electrons and holes on both contacts and the injection barrier heights for majority …
Fiber-shaped organic solar cells (FOSCs) with intrinsic stretchability show great potential in stretchable and wearable electronics applications. However, limited by the poor stretchability of small molecule semiconductors, the stretchability of FOSCs is still not satisfied. Polymerized nonfullerene acceptors with excellent photovoltaic ...
We designed and synthesized a star-shaped photovoltaic acceptor of G-Trimer, and its high molecular weight and symmetric structure synergistically result in unique assembly properties, promoting record efficiency from small-area devices to large-area modules fabricated by green solvent, as well as excellent thermal stability, retaining ca. 90% of the …
The power conversion efficiency of the finally obtained fiber‐shaped perovskite solar cell reaches 10.79%, which is currently the highest power conversion efficiency in the field of fiber ...
Modules of foldable crystalline silicon solar cells retain their power-conversion efficiency after being subjected to bending stress or exposure to air-flow simulations of a …
Nowadays, there is an increasing interest in solid solar cells based on organolead trihalides, which have achieved a certified efficiency of 20.1%. The success in perovskite solar cells extended the knowledge of perovskite materials and inspired their study for special solar architectures. Fiber-shaped solar
In fact, S-shaped I-V characteristics are usually observed in a new generation solar cells represented by perovskite and organic solar cells. And then, exponential kinks in S-shaped I - V curves generally appear in the cases of low operational temperature ( Xu et al., 2016 ), thin cathode layer ( Sesa et al., 2019 ), low annealing temperature ...
Research on perovskite solar cells is currently at a high level of activity and many types of special solar architectures have been derived. The fiber-shaped perovskite solar cell (FPSC) is one very important type of these architectures, as it could be a potential power source of …
Flexible fiber/wire-shaped solar cells are kind of photovoltaic cells fabricated on wire-like substrates. Fiber-type devices, including inorganic, organic, dye-sensitized and perovskite solar ...
Fiber-shaped organic solar cells (FOSCs) with superior mechanical stretchability are strong candidates for portable and wearable electronic power supplies. The high flexibility and stretchability enable the device stably to fit the body and avoid performance loss when the device deforms with irregular body movements. The reported FOSCs with the ...
Organic solar cells (OSCs) have attracted considerable attention from both academia and industry due to their portability, transparency, flexibility, and facile fabrication 1,2,3,4.Owing to the ...
An efficient structure of thin film solar cell (TFSC) is designed and investigated using a plasmonic nanoantenna for improving the performance of the solar cell. The proposed design is formed as a shape of "Swastika," an ancient geometrical figure, designed by bending the conventional dipole antenna up to optimal lengths. The designed antenna is positioned on the …
The efficiency of fiber-shaped solar cells was tested using a Keithley 2400 light source meter (100 mWcm −2) with AM 1.5 solar light simulation using a model of the one sun (Oriel-91,193 have 1000 W Xe lamp and an AM1.5 filter). A reference Si solar cell was used to calibrate the light intensity (Oriel-91,150).
In response to the massive demand of more efficient solar energy harvesting devices, hexagonal-shaped Perovskite nanorod solar cells are presented as a new alternative for the conventional photovoltaic cells. Having the same advantages of nanorod cells, fabricated hexagonal-shaped nanorod Perovskite cells showed good cell performance, carrier generation …
SPECTRALLY SHAPED SUPERCONTINUUM FOR ADVANCED SOLAR CELL CHARACTERIZATION Markus Mundus*, Manoj Kumar Dasa, Xudong Wang, Jochen Hohl-Ebinger, Wilhelm Warta Fraunhofer Institute for Solar Energy Systems, Heidenhofstr. 2, 79110 Freiburg, Germany *Corresponding Author: Phone: +49 (0) 761 4588 5632 Email: …
"With the improved absorption and omnidirectionality characteristics, the proposed hemispherical-shell-shaped active layers will be found beneficial in various application areas of organic solar ...
On the other hand, inverted perovskite thin-film solar cells have been successfully integrated with silicon solar cells to form two-terminal tandem solar cells, resulting in a high PCE of 29.8% [21].
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"The maximum temperature difference between the proposed shapes was between the conical-shaped and pyramid-shaped solar panels, and the difference was approximately 10.9 degrees Celsius," the ...
Foldable solar cells, with the advantages of size compactness and shape transformation, have promising applications as power sources in wearable and portable electronics, building and vehicle integrated photovoltaics.
This study sought to increase the conversion efficiency of triple-junction GaAs solar cells via spectral light trapping through the application of a uniform TiO 2 layer with an antireflective coating (ARC) comprising a periodic array of cone-shaped TiO 2 structures. The cone-shaped TiO 2 ARC structures were fabricated using a mask of polystyrene spheres (PS) …
Organic solar cells (OSCs) based on giant molecular acceptors (GMAs) have attracted extensive attention due to their excellent power conversion efficiency (PCE) and operation stability. ... Furthermore, the non-fused star-shape configuration also endows these acceptors with enhanced intermolecular interaction in the active layer, demonstrating ...
A round solar cell is a type of solar cell with a circular design, which is composed of multiple rectangular cells arranged and combined to form a circle. Compared with the traditional rectangular design, the circular design can maximize the …
C-shaped A-D-A non-fullerene acceptor achieves efficient organic solar cells Hanjian Lai, 1Zihao Deng, and Feng He1,2 * Organic solar cells are regarded as a promising strategy for green-energy utilization. Photoactive materials and device technologies have been continually explored. Recently, in the Journal of the
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