scholarly journals The role of Plasmonic metal-oxides core-shell nanoparticles on the optical absorption of Perovskite solar cells

2021 ◽  
Author(s):  
Ihsan Ullah ◽  
Hamed Saghaei ◽  
Said Karim Shah
Keyword(s):  
Solar Cells ◽  
Optical Absorption ◽  
Incident Light ◽  
Perovskite Solar Cells ◽  
Absorber Layer ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Shell Size ◽  
Perovskite Layer ◽  
Au Nps

Abstract Among all the different methods to enhance the optical absorption of photovoltaic devices. The plasmonic effect is one the most prominent and effective ways to capture more incident light and also provide good carrier dynamic management. Here, we systematically introduce spherical gold nanoparticles (Au NPs) with different radii in the absorber layer of perovskite solar cells (PSCs). The overall enhanced optical absorption around 14.20% and 20.02% is achieved for incorporated monolayer and bilayer Au NPs, respectively, in the active layer compared to the pure perovskite layer. Moreover, we employ the metal (Au)-dielectric (TiO2 and SiO2) nanoparticles in the absorber layer. The optical absorption increases as the core-shell size decreases. The optical absorption elevates in both Au@TiO2 core-shell and Au@SiO2 core-shell 17.5% and 3.5%, respectively. These results support superior separation and transfer of charge in the existence of plasmonic NPs. In addition, this study presents a very sophisticated approach in the optical enhancement of PSCs and thus helps to boost the overall photovoltaic device performance.

scholarly journals Influence of Ag@SiO2 with Different Shell Thickness on Photoelectric Properties of Hole-Conductor-Free Perovskite Solar Cells

Nanomaterials ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2364
Author(s):  
Zhiyuan He ◽  
Chi Zhang ◽  
Rangwei Meng ◽  
Xuanhui Luo ◽  
Mengwei Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Shell Thickness ◽  
Perovskite Solar Cells ◽  
Current Gain ◽  
Core Shell ◽  
Counter Electrodes ◽  
Shell Nanoparticles ◽  
Photoelectric Properties ◽  
Photosensitive Layer ◽  
Core Shell Nanoparticles

In this paper, Ag@SiO2 core-shell nanoparticles (NPs) with different shell thicknesses were prepared experimentally and introduced into the photosensitive layer of mesoscopic hole-conductor-free perovskite solar cells (PSCs) based on carbon counter electrodes. By combining simulation and experiments, the influences of different shell thickness Ag@SiO2 core-shell nanoparticles on the photoelectric properties of the PSCs were studied. The results show that, when the shell thickness of 0.1 wt% Ag@SiO2 core-shell nanoparticles is 5 nm, power conversion efficiency is improved from 13.13% to 15.25%, achieving a 16% enhancement. Through the measurement of the relevant parameters of the obtained perovskite film, we found that this gain not only comes from the increase in current density that scholars generally think, but also comes from the improvement of the film quality. Like current gain, this gain is related to the different shell thickness of Ag@SiO2 core-shell nanoparticles. Our research provides a new direction for studying the influence mechanism of Ag@SiO2 core-shell nanoparticles in perovskite solar cells.

scholarly journals Enhancing the Photovoltaic Performance of Perovskite Solar Cells Using Plasmonic Au@Pt@Au Core-Shell Nanoparticles

Nanomaterials ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 1263 ◽  
Author(s):  
Bao Wang ◽  
Xiangyu Zhu ◽  
Shuhan Li ◽  
Mengwei Chen ◽  
Nan Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Chemical Reduction ◽  
Short Circuit ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Open Circuit ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Local Surface Plasmon Resonance ◽  
Core Shell Nanoparticles

Au@Pt@Au core-shell nanoparticles, synthesized through chemical reduction, are utilized to improve the photoelectric performance of perovskite solar cells (PSCs) in which carbon films are used as the counter electrode, and the hole-transporting layer is not used. After a series of experiments, these Au@Pt@Au core-shell nanoparticles are optimized and demonstrate outstanding optical and electrical properties due to their local surface plasmon resonance and scattering effects. PSC devices containing 1 wt.% Au@Pt@Au core-shell nanoparticles have the highest efficiency; this is attributable to their significant light trapping and utilization capabilities, which are the result of the distinctive structure of the nanoparticles. The power conversion efficiency of PSCs, with an optimal content of plasmonic nanoparticles (1 wt.%), increased 8.1%, compared to normal PSCs, which was from 12.4% to 13.4%; their short-circuit current density also increased by 5.4%, from 20.5 mA·cm−2 to 21.6 mA·cm−2. The open-circuit voltages remaining are essentially unchanged. When the number of Au@Pt@Au core-shell nanoparticles in the mesoporous TiO2 layer increases, the photovoltaic parameters of the former shows a downward trend due to the recombination of electrons and holes, as well as the decrease in electron transporting pathways.

Higher efficiency perovskite solar cells using 2 core–shell nanoparticles

2018 ◽  
Vol 2 (10) ◽  
pp. 2260-2267 ◽  
Author(s):  
P. S. Chandrasekhar ◽  
Ashish Dubey ◽  
Khan Mamun Reza ◽  
M. D. Nazmul Hasan ◽  
Behzad Bahrami ◽  
...  
Keyword(s):  
Solar Cells ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Core Shell Nanoparticles

We improved photovoltaic performance by about 29% in planar p-i-n perovskite solar cells (PSCs) using plasmonic Au@SiO2 core–shell nanoparticles (NPs).

scholarly journals Double-Layered Zirconia Films for Carbon-Based Mesoscopic Perovskite Solar Cells and Photodetectors

2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
George Syrrokostas ◽  
George Leftheriotis ◽  
Spyros N. Yannopoulos
Keyword(s):  
Solar Cells ◽  
Incident Light ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Perovskite Layer ◽  
Zirconia Film ◽  
Harvesting Efficiency ◽  
Zirconia Nanoparticles ◽  
Zirconia Films ◽  
Carbon Based

Carbon-based mesoscopic perovskite solar cells (PSCs) and photodetectors were fabricated with the application of double-layered ZrO2 films, consisting of zirconia nanoparticles and microparticles for the first and the second layer, respectively. This assembly exploits the ability of the zirconia microparticles to scatter and hence diffuse the incident light, causing a more efficient illumination of the perovskite layer. As a result, the photocurrent densities produced by a photodetector and a carbon-based PSC were increased by nearly 35% and 28%, respectively, compared to devices assembled using a conventional single zirconia film. Following the increase in the photocurrent, the responsivity of the photodetector and the power conversion efficiency of the PSC were increased analogously, due to the improved light harvesting efficiency of the perovskite layer. Parameters, such as the total thickness, the roughness, and the crystallinity of the films, were examined. Differences in the grain size and in the crystal planes of the perovskite were observed and evaluated. These results demonstrate that a double-layered ZrO2 film can enhance the efficiency of solar cells and photodetectors, enhancing the prospects for their potential commercialization.

Plasmonic Perovskite Solar Cells Utilizing Au@SiO2 Core-Shell Nanoparticles

Plasmonics ◽  
2016 ◽  
Vol 12 (2) ◽  
pp. 237-244 ◽  
Author(s):  
Nilesh Kumar Pathak ◽  
Nikhil Chander ◽  
Vamsi K. Komarala ◽  
R. P. Sharma
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Core Shell Nanoparticles
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