Tervo et al. propose a solid-state heat engine for solar-thermal conversion: a solar thermoradiative-photovoltaic system. The thermoradiative cell is heated and generates electricity as it emits light to the photovoltaic cell. Combining these two devices enables efficient operation at low temperatures, with low band-gap materials, and at low optical concentrations.
Typical organic photovoltaic semiconductors exhibit high exciton binding energy (E b, typically >300 meV), hindering the development of organic solar cells based on a single photovoltaic material (SPM-OSCs).Herein, compared with the control molecule (Y6), Y6Se with selenium substitution exhibits reduced E b and faster relaxation of the exciton state or the …
Fan et al. report the introduction of a liquid crystal donor into a typical non-fullerene blending system to significantly improve their crystallinity and molecular ordering, enabling an efficient three-dimensional charge transport in …
Conventional understanding of solar cell operation which has been initiated and driven by the studies of inorganic crystalline materials is mainly based on the models of the p-n junction and p-i-n ...
Soft-Matter Thin Film Solar Cells: Physical Processes and Device Simulation. Edited by Jingzheng Ren; Jingzheng Ren Hong Kong Polytechnic University, Hong Kong. Jingzheng Ren, Ph.D., is an Assistant Professor at the Hong Kong Polytechnic University and an Honorary/Adjunct Associate Professor at the University of Southern Denmark. He has ...
Both physical and chemical techniques have their own advantages and disadvantages and it depends upon the application where they are adopted. Both techniques can be applied in solar cell fabrication. ... [−1 0 1] direction. [(a) ... The solar cell device performance is affected due to the presence of defects in the absorber compound.
At a light intensity of 960 lux, the optimized device delivered a power density of 102 μW/cm 2, as shown in Figure 5D, which is among the highest values reported for perovskite solar cells operated at low-light intensity. 12, 19, 20, 51 When the light intensity was further reduced to 240 lux, as shown in Figure S16, the device still delivered ...
The long-term stability and reproducibility issues of perovskite solar cells (PSCs) hinder their successful commercialization. 3D/2D PSCs are one of the most prominent ways to address these issues. Gunes et al. demonstrate that the position of substitution on 2D-forming cations has a profound effect on the performance and stability of the resulting devices.
Transparent photovoltaics for building integration represent a promising approach for renewable energy deployment. These devices require transparent electrodes to manage transmittance and to ensure proper cell operation. In this study, transparent FAPbBr3-based perovskite solar cells optimized via a passivation treatment were demonstrated with …
The theory of solar cells explains the process by which light energy in photons is converted into electric current when the photons strike a suitable semiconductor device.The theoretical studies are of practical use because they predict the fundamental limits of a solar cell, and give guidance on the phenomena that contribute to losses and solar cell efficiency.
Organic solar cells (OSCs) represent an important emerging photovoltaic (PV) technology that can be produced by high-throughput solution processing from a vast array of organic semiconductors. 1–4 The tunable optical bandgap of organic semiconductors enables them to be more efficient in harvesting near-infrared (NIR) photons to facilitate the short-circuit …
The first use of HPs in solar cells was reported by Miyasaka and co-workers in 2009, 1 which has been followed by vast research activities, focusing on improving thin-film formation, materials'' stability, and device architectures for more efficient and stable large-area perovskite solar cells (PSCs). 2–6 The current record for power ...
Both solar cells and photosynthetic systems employ a two-step process of light absorption and energy conversion. In photosynthesis, they are performed by distinct proteins. However, conventional solar cells use the …
Modeling and optimization of multi-junction solar cell devices based on MChX compounds. a) General structure of the simulated multi-junction solar cell device considering a stacking configuration. The thickness of each chalcohalide layer (d i) is obtained by an optimization process. The illumination direction goes from the top to bottom of the ...
The first working solar cell, with 3.15% efficiency (deposited on n + c-Si surface), was presented. This was followed by a real thin film solar cell on an SS substrate, showing an efficiency of 4.41% [52]. These extensive studies identified the effect of deposition parameters on the structural and opto-electronic properties.
Metal halide hybrid perovskites have since the early 2010s been explored for a variety of optoelectronic applications such as solar cells 22, 23 light-emitting diodes, 24, 25 lasers, 26 photodetectors, 27, 28 and X-ray detectors. 29 Most of the attention has so far been given to their use as photoabsorbers in solar cells.
The champion phthalocyanine as dopant-free hole transport material in perovskite solar cell realizes a record performance of 23.41%. Greatly device stability is also exhibited. This work affords a new way to enhance hole transport capabilities of conjugated molecules by optimizing their IEF vector for photovoltaic devices.
Radiative cooling is a method for cooling objects on the earth''s surface by emitting thermal radiation into space through the atmospheric window (8–13 μm), which requires no energy or water and is gaining increasing attention. 3 With …
The first use of HPs in solar cells was reported by Miyasaka and co-workers in 2009, 1 which has been followed by vast research activities, focusing on improving thin-film formation, materials'' stability, and device …
While perovskite solar cells boast efficiency, stability challenges hinder commercialization. Here, Juarez-Perez et al. introduce a maximum-power-point tracking algorithm and cost-effective hardware for long-term stability testing, aiming to enhance the statistical significance of future stability advancements in perovskite solar cells.
Solar cells are semiconductor-based devices primarily, which convert sunlight directly to electrical energy through the photovoltaic effect, which is the appearance of a voltage and current when light is incident on a material.The photovoltaic effect was first reported by Edmond Becquerel in 1839, who observed a voltage and current resulting from light incident on …
Cell Chemical Biology; Cell Genomics; Cell Host & Microbe; Cell Metabolism; ... showcasing some of the best research featuring applied materials science and device engineering published in Cell Reports Physical Science to date. 65 Results Subscribe to collection ... Reversible photo-electrochemical device for solar hydrogen and power …
Halide-perovskite-based materials are rising stars for optoelectronic applications. In this perspective, Gong et al. introduce several ultrafast spectroscopic methods for the investigation of total carrier dynamics, hot-carrier cooling dynamics, interfacial carrier transport dynamics, and carrier spin relaxation dynamics in perovskite optoelectronics.
We present two automatically generated databases that contain photovoltaic properties and device material data for dye-sensitized solar cells (DSCs) and perovskite solar cells (PSCs), totalling ...
During the past decade, perovskite solar cells (PSCs) have gained significant attention as a promising photovoltaic technology due to their exceptional power conversion efficiency (PCE) and facile fabrication process. 1, 2, 3 Despite impressive progress, developing sufficient dynamics for charge separation and transfer remains crucial in order to further …
Metal halide perovskite solar cells (PSCs) show great promise in the photovoltaic field due to their tunable bandgap, high extinction coefficient, small exciton binding energy, long carrier diffusion length, and high carrier mobility. 1, 2 Nowadays, the reported PSCs with high efficiency are mainly realized with the organic-inorganic hybrid perovskites and the …
CdTe is a very robust and chemically stable material and for this reason its related solar cell thin film photovoltaic technology is now the only thin film technology in the first 10 top producers in the world. CdTe has an optimum band gap for the Schockley-Queisser limit and could deliver very high efficiencies as single junction device of more than 32%, with an …
A new type of solar cells based on Cu-doped (p-type) and I doped (n-type) Sb2Se3 has been designed and fabricated using magnetron sputtering with two different thicknesses of the absorber.
The interior of the module consists of two layers: an MHP device stack with a solar absorber that is ≤2 μm thick and a polymer or inert gas interlayer that fills the area behind the solar cell. The module size was chosen as 1 × 2 m, similar to current thin-film products.
Transparent photovoltaics for building integration represent a promising approach for renewable energy deployment. These devices require transparent electrodes to …
PbS CQD-based solar cell devices benefit particularly from low-cost scalable production of large-area thin film and spectral tunability. 11–17 PbS has an energy band gap of 0.4 eV in bulk single crystals and a large exciton Bohr radius of 18 nm. As a result, PbS CQDs can be tuned in size to control which part of the near-infrared (IR) region of the solar spectrum is …
During the past decade, perovskite solar cells (PSCs) have gained significant attention as a promising photovoltaic technology due to their exceptional power conversion efficiency (PCE) and facile fabrication process. …
This work by de Lafontaine et al. reports a method to fabricate 3D interconnects on III-V semiconductor devices. A proof of concept is realized on III-V/Ge triple-junction solar cells with an area 3 orders of magnitude smaller compared with standard chips. This strategy enables device miniaturization with increased wafer area use.
The dye-sensitized solar cell (DSSC) is the newest photovoltaic device configuration. The basic structure of a DSSC involves a transparent (wide-band-gap) n-type semiconductor configured optimally in a nano-scale network of columns, touching nanoparticles, or coral-like protrusions. The dye sensitizer is the absorber.
The wafer-based 1st-generation photovoltaic devices have been followed by thin-film solid semiconductor absorber layers sandwiched between 2 charge-selective contacts and nanostructured (or mesostructured) …
Furthermore, the authors fabricated solar cells using carbon instead of metals as electrodes and without any HTM at all. Surprisingly, the PCE resulting from Cs 0.95 Na 0.05 PbI 3 solar cells was found to be 10.7%, with V OC being 0.92 V, whereas that of pure CsPbI 3 solar cells was found to be 8.6%, with V OC of 0.77 V. Moreover, the non ...
Harvesting and converting solar energy into electricity and fuel contributes to the reduction of our energy dependency on fossil fuels and achieving CO 2 emission mitigation to address climate change challenges. 1, 2 …
current density and, hence, a high production rate, under 100 suns. Tembhurne et al.27 reported a concentrated PEC system using a III-V-based photoabsorber and IrRuOx-Pt-based electrocatalysts and demonstrated an STH efficiency of 15% with a high current density greater than 0.88 A/cm2 and concentrated solar irradia- tion up to 474 suns.
For organic solar cells to be competitive, the light-absorbing molecules should simultaneously satisfy multiple key requirements, including weak-absorption charge transfer …
The physical and chemical parameters of the melt grown CdTe crystals were also presented in Table 1. These functional properties help to the researches, those who are working in the growth of low dislocation density semiconducting CdTe material. ... also the performance of solar cell device. Therefore the phase diagram will help the crystal ...
