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High pressures can cause damage, which can lead to light scattering and unexpected blue shifts in the absorption edge. The results of the device parameters (before and after pressures) are presented in Fig. 4a–g. A typical set of current density-voltage (J-V) curves obtained for the perovskite solar cells are presented in Fig. 4a.
The application of pressure can also increase the contact between layers that are present in solar cell structures. Such contacts can suppress crack growth along the interfaces 14, 15, 16, 17, 18, 19. It can also promote charge and light transport across the interfaces of solar cells.
In the case of the perovskite solar cells that were fabricated without pressure application, the PCE and FF were 9.84 (9.40 ± 0.70) % and 0.53 ± 0.008, respectively. However, with the application of pressure (up to 7 MPa), the PCE and FF increased up to 13.67 (13.10 ± 0.70) % and 0.61 ± 0.005%, respectively.
This paper presents the results of a combined experimental and analytical/computational study of the effects of pressure on photoconversion efficiencies of perovskite solar cells (PSCs). First, an analytical model is used to predict the effects of pressure on interfacial contact in the multilayered structures of PSCs.
Schematic of a localized stress in an interfacial layer crack/notch within the multilayered structure of a perovskite solar cell subjected to remote pressure/stress (Effective high stresses at the crack or notch tips can induce amorphization).
The models and simulations, which incorporates the mechanical properties of the layers in the perovskite solar cells 29, 30, show that contact between the layers increases with increasing applied pressure.
This paper presents a thorough numerical investigation focused on optimizing the efficiency of quantum-well intermediate-band solar cells (QW-IBSCs) based on III-nitride …
The high crystallinity and large grain sizes are beneficial for solar cells, but …
This paper presents the results of a combined experimental and analytical/computational study of the effects of pressure on photoconversion efficiencies of …
ABSTRACT: Metal halide perovskite solar cells (PSCs) have undergone remarkably rapid …
Perovskite solar cells (PSCs) have emerged as a leading candidate for the next generation of solar cells. Even though their efficiency has risen from 3.8% to over 25.7%, …
Funding: This study was supported by the Australian Renewable Energy Agency, Grant/Award Number: SRI-001; U.S. Department of Energy (Office of Science, Office …
Organic solar cells (OSCs) based on D18 : L8-BO prepared using this high-pressure method achieved an outstanding power conversion efficiency of 19.65 %, setting a …
Metal halide perovskite solar cells (PSCs) have undergone remarkably rapid progress with their power conversion efficiency (PCE) increasing from 3.8% to 23.7% in …
The quantum well solar cell (QWSC) consists of a multiple quantum well structure in the intrinsic region of a p–i–n. The MQW structure introduced for the model is …
The high crystallinity and large grain sizes are beneficial for solar cells, but cracks are detrimental to the efficiency of PSCs. Thus, we obtained optimal results with a …
RESULTS AND DISCUSSION Pressure-Induced Improvement. Figure 2a shows the PCEs of cells measured before, a few minutes after, 1 day after, and 3 days after the first application …
The solar panels that you see on power stations and satellites are also called photovoltaic (PV) panels, or photovoltaic cells, which as the name implies (photo meaning …
Pressure-tight polymer/glass stack encapsulation was effective in suppressing gas transfer and allowed solar cells containing methylammonium to pass harsh moisture and …
Inspired by pressure cooker principles, we employ high-pressure methods to address challenges in processing high molecular weight polymers. Successfully dissolving HW-D18 in chloroform at 100 °C within …
New research shows that a tailored partial pressure of selenium leads to less …
Solar cells made of artificial crystalline structures called perovskites have shown great promise in recent years. Now Stanford University scientists have found that applying …
The field of organo-lead halide perovskite solar cells has been rapidly growing since their discovery in 2009. State of the art devices are now achieving efficiencies …
Producing a solar cell that is under such a high pressure is impractical. However, there is a practical solution, explains Hutter. "If we replace the cation in the cages of the perovskite with a
It is found that pressing pressure of 400−500 mbar is appropriate; higher pressure at 1000 mbar is detrimental. Moreover, pressure must be maintained to maintain the PCE improvement.
ABSTRACT: Metal halide perovskite solar cells (PSCs) have undergone remarkably rapid progress with their power conversion efficiency (PCE) increasing from 3.8% to 23.7% in …
Inspired by pressure cooker principles, we employ high-pressure methods to address challenges in processing high molecular weight polymers. Successfully dissolving HW …
Introduction Simulation is a powerful tool to predict the actual potential of a device under ideal conditions. There are so many solar cell simulation Software packages, …
The power conversion efficiency of the solar cells based on the kesterite layer grown at a relatively higher N 2 pressure (corresponding to a lower concentration of Se during …
New research shows that a tailored partial pressure of selenium leads to less-defective kesterite without the formation of intermediate phases, enabling 13.8%-efficiency …