This study focuses on enhancing the performance of n-type Tunnel Oxide Passivated Contact (TOPCon) solar cells by exploring the optimization of both front and rear film layers. For the front film, we implement a one-step plasma oxidation process before depositing silicon nitride on alumina, aiming to enhance the quality of the alumina layer …
This study focuses on enhancing the performance of n-type Tunnel Oxide Passivated Contact (TOPCon) solar cells by exploring the optimization of both front and rear film layers. For the front film, we implement a one-step plasma oxidation process before depositing silicon nitride on alumina, aiming to enhance the quality of the alumina layer …
This optimized film was applied as a passivation layer to the illuminated side of p-type PERC solar cells, resulting in 21.43% efficiency, compared with 21.13% for a cell with undoped TiO x (it should …
For any emerging photovoltaic technology to become commercially relevant, both its power conversion efficiency and photostability are key parameters to be fulfilled. Colloidal quantum dot solar ...
Canon has announced a new functional material for perovskite thin film passivation that potentially improves durability of perovskite solar cells while enabling a mass-production process. The ...
Perovskite solar cells have made significant strides in recent years. However, there are still challenges in terms of photoelectric conversion efficiency and long-term stability associated with perovskite solar cells. The presence of defects in perovskite materials is one of the important influencing factors leading to subpar film quality. …
It is expected that it will be possible to manufacture a solar cell with higher efficiency if the actual cell is fabricated by optimizing HfOx as a passivation layer based …
Anion optimization for bifunctional surface ...
The nonradiative recombination was suppressed more efficiently in the in-film passivation method compared to the posttreatment method due to suppression of the defects not only at the surface but also on the bulk perovskite film, leading to a stabilized PCE of 23.5% for the all-perovskite tandem solar cell.
(a) Schematic of the device structure, (b) Fabricated device (MAPbBr 3), (c) SEM cross-section of a perovskite solar cell; the MAPbBr 3 layer was deposited by the anti-solvent technique, and (d) a ...
Photovoltaic solar cell technologies: analysing the state of ...
Outstanding improvement in power conversion efficiency (PCE) over 25% in a very short period and promising research developments to reach the theoretical PCE limit of single junction solar cells, 33%, enables organic–inorganic perovskite solar cells (OIPSCs) to gain much attention in the scientific and industrial community. The simplicity …
Surface passivation of n-type Crystalline Silicon wafer using thin dielectric films is an important and major factor in improving photovoltaic performance of HIT solar cells. In this study, Numerical simulation was carried out by using AFORS-HET simulation software in which energy band diagram with and without surface passivation (a-Si:H(i)) …
Defect passivation management of perovskite films is of great importance in improving the performance of perovskite solar cells. Various in situ or post-passivation …
In the range of the usable portion of the solar spectrum (400–1100 nm) the AM1.5G batch weighted reflectance has been reduced to (10.50±0.29)% as shown in Fig. 3 addition this ratio presents an optimum wavelength range of (580–615 nm) similar to that required for photovoltaic application. ...
Perovskite solar cells (PSCs) are attractive due to their fast-increasing device efficiency, yet their further improvement is limited by their suboptimal morphology and intrinsic defects. To assess how the widely used additive engineering impacts crystal growth and defect passivation, we herein propose a simple but effective strategy to disentangle …
Perovskite solar cells (PSCs) have been introduced as an attractive photovoltaic technology over the past decade due to their low-cost processing, earth-abundant raw materials, and high power conversion efficiencies (PCEs) of …
Passivation treatment is an effective method to suppress various defects in perovskite solar cells (PSCs), such as cation vacancies, under-coordinated …
Wide band-gap perovskite solar cells have the potential for a relatively high output voltage and resilience in a degradation-inducing environment. Investigating the reasons why high voltages with ...
The solution fabrication process has made perovskite solar cells attractive, but it generally causes abundant defects on the surface and grain boundaries of the perovskite layer. Surface passivation is the usual method to solve the problem, but it usually creates a negative work function, resulting in the potential well and charge …
Simultaneously, the influence of small molecules on the perovskite film was investigated using X-ray photoelectron spectroscopy (XPS) (Figures 1 E–1G and S1).The observed shift toward a lower binding energy in the Pb 4f (Pb 4f 7/2 and Pb 4f 5/2) peaks for perovskite films treated with DPS and DMPS indicates a robust interaction …
Here, we report the use of an organic halide salt phenethylammonium iodide (PEAI) on HC (NH 2) 2 –CH 3 NH 3 mixed …
Nitrogen effect on negative fixed charges of Al 2 O 3 passivation film in crystalline Si solar cells Abstract: We demonstrated the electrical evolution of the AlO, AlN, and AlON and the nitrogen (N) effect on negative fixed charges, which is responsible for the reduced positive charge traps of Al 2 O 3 passivation films in crystalline Si solar cells.
The approach used in this study is distinct in that we use polymer colloid nanogel particles and apply them to the challenge of PSC stability improvement. We …
A derivative of 4,4′-dimethyldiphenylsulfone strongly coordinates with Pb2+ on perovskite surfaces, optimizing charge distribution and energy level alignment for efficient passivation of surface defects. He and Chen et al. show that a device treated with the optimum derivative achieves a champion PCE of 23.27% with better humidity and heat stability …
The main bottleneck in the commercialization of perovskite solar cells is the long-term stability of device operation. Sustainable passivation of defects from device operation is an important way to maintain performance over time. We heavily passivate the perovskite surface with a π-conjugated passivator, the passivation effectiveness of …
For the passivated emitter and rear cells with bifacial power generation (known as PERC+), the rear-side efficiency is very important and critical. In this work, the influence of SiN x and SiO x N y as rear-side passivation films on the performance of PERC + cells was investigated. ...
Crystalline silicon (c-Si) is the dominating photovoltaic technology today, with a global market share of about 90%. Therefore, it is crucial for further improving the performance of c-Si solar cells and reducing their cost. Since 2014, continuous breakthroughs have been achieved in the conversion efficiencies of c-Si solar cells, with …