Electromagnetic resonances of solar-selective absorbers with nanoparticle arrays embedded in a dielectric …
Fig. 1 (a) shows a schematic of the solar-selective absorber. The proposed structure consists of a tungsten nanoparticle array monolayer on a tungsten substrate, covered by an SiO 2 layer. Fig. 1 (b) shows the coordinate system and geometric parameters, where h is the thickness of the SiO 2 layer, d is the diameter of tungsten …
I know MC4 connectors are suppose to be weather tight but has anyone used dielectric grease when putting the together. Being a truck driver I know how moisture can get it "weather proof" connectors. When using dielectric grease those problems go …
Doubling Absorption in Nanowire Solar Cells with Dielectric Shell …
Doubling Absorption in Nanowire Solar Cells with Dielectric Shell Optical Antennas Sun-Kyung Kim,† Xing Zhang,‡ David J. Hill,‡ Kyung-Deok Song, Jin-Sung Park, Hong-Gyu Park,*, and James F. Cahoon*,‡ †Department of Applied Physics, Kyung Hee University, Gyeonggi-do 446-701, Republic of Korea
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Light trapping in ultrathin CuIn1-xGaxSe2 solar cells by dielectric nanoparticles
Nanopatterned ultrathin CIGSe solar cells on TCO substrate under back illumination is a promising structure for high efficiencies and material consumption reduction. Integrating dielectric NPs (n = 1.5) at CIGSe/ITO interface contributes to a broadband Abs CIGSe gain, with a maximum short circuit current density beyond 35 mA/cm 2 reached for …
Highly Efficient Wide Bandgap Perovskite Solar Cells With …
1 Introduction. With the rapid development of the Internet of Things (IoT) and for a carbon-neutral society, [] photovoltaics can play a crucial role in supplying a large amount of off-grid energy through efficient light-harvesting and conversion processes. [] Perovskite solar cells (PSCs) are recognized as promising candidates for IoTs to operate …
Light Coupling and Trapping in Ultrathin Cu (In,Ga)Se2 Solar Cells Using Dielectric Scattering Patterns
We experimentally demonstrate photocurrent enhancement in ultrathin Cu(In,Ga)Se2 (CIGSe) solar cells with absorber layers of 460 nm by nanoscale dielectric light scattering patterns printed by substrate conformal imprint lithography. We show that patterning the front side of the device with TiO2 nan …
Efficient Light Absorption in Organic Solar Cells Based on Two-Dimensional Arrayed Dielectric …
We have designed a patterned OSC based on 2-D arrayed dielectric nanospheres loaded on the indium tin oxide anode with other functional layers conformally embos Impact Statement: We propose a method of introducing a dielectric nanosphere array into OSCs to construct light trapping profiles for boosting the absorption of light in the active layer.
High fill factor organic solar cells with increased dielectric …
High fill factor organic solar cells with increased dielectric constant and molecular packing density. To further reduce the FF gaps with regard to the Shockley-Queisser upper limit, …
a) Schematic of the opaque and semi-transparent (ST) perovskite solar cell (PeSC) device structures. DMD represents the semi-transparent dilelectric-metal-dielectric electrode used in ST-PeSCs.
Calculation of Transformer Bushing Surface Temperature …
The effects of dielectric loss and solar radiation on the surface temperature of bushing are studied on the basis of current heat loss, solid heat transfer and radiation heat transfer. The analysis shows that the dielectric loss is 57.01 W, and in the range of 70 °C ~ 100 °C, the dielectric loss makes the whole temperature of the bushing rise ...
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The solar spectrum selective absorption coating (SSAC), as a core component of the concentrated solar power (CSP) system, faces increasingly stringent performance criteria as concentrated solar therm...
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Broadband enhancement of dielectric light trapping nanostructure used in ultra-thin solar …
The dielectric nanostructure on the front surface of solar cell can affect the electromagnetic field in solar cell and then the multi-resonant occurred in the active layer is significantly enhanced. This affects the spatial distribution of the electrostatic potential (which controls the carrier transport) inside the active layer of solar cell.
Holistic dielectric and buffer interfacial layers enable high …
Suppressing the interfacial non-radiative recombination plays a critical role in reducing the voltage loss of perovskite solar cells. Herein, we develop a holistic …
Light Coupling and Trapping in Ultrathin Cu (In,Ga)Se2 Solar …
We experimentally demonstrate photocurrent enhancement in ultrathin Cu(In,Ga)Se2 (CIGSe) solar cells with absorber layers of 460 nm by nanoscale dielectric light scattering patterns printed by substrate conformal imprint lithography. We show that patterning the front side of the device with TiO2 nan …
High fill factor organic solar cells with increased dielectric …
Summary The fill factor (FF) of organic solar cells (OSCs), a critically important photovoltaic parameter, is still sub-optimal, often less than 0.8. To further reduce the FF gaps with regard to the Shockley-Queisser upper limit, we present a study unveiling the impacts of dielectric properties on obtaining high FFs and photovoltaic efficiencies in OSCs. By increasing the …
Plasmonic versus dielectric enhancement in thin-film solar cells
Several studies have indicated that broadband absorption of thin-film solar cells can be enhanced by use of surface-plasmon induced resonances of metallic parts. ... to the same type of localized slab-waveguide modes can be obtained by a surface modulation consisting of purely dielectric strips. The purely dielectric device turns out to have a ...
Efficient Light Absorption in Organic Solar Cells Based on Two ...
Abstract: We have designed a patterned OSC based on 2-D arrayed dielectric nanospheres loaded on the indium tin oxide anode with other functional layers conformally embossed in the same profile as the nanosphere array. This design shows an integrated light absorption efficiency of 76.6% in the PSBTBT:PC 71 BM active layer over the wavelength range from …
Sublimed C 60 for efficient and repeatable perovskite-based solar …
Thermally evaporated C 60 is a near-ubiquitous electron transport layer in state-of-the-art p–i–n perovskite-based solar cells. As perovskite photovoltaic …
Solar-biomass and dielectric drying of mace: An investigation on ...
Dielectric drying reduced the duration to 41.6 % with enhanced rate of drying. Moisture diffusivity values of solar-biomass and dielectric dried nutmeg mace were 2.30 -8 m 2 /s and 1.72 × 10-7 m 2 /s respectively. Instantaneous drying efficiencies under solar and microwave modes were in the range of 26.4 – 33.4 % and 32.5 – 41.2 % ...
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Ηλιακοί Θερμοσίφωνες SOLAR PLUS – Ενέργεια από τον Ήλιο
Η τεχνική ανωτερότητα των Ηλιακών Θερμοσίφωνων SOLAR PLUS International βασίζεται στην υπερσύγχρονη τεχνολογία παραγωγής των ηλιακών μας, στο υψηλών προδιαγραφών πεπειραμένο προσωπικό μας, στον αυστηρό και υποδειγματικό ...
Lowering the dielectric mismatch for efficient inverted perovskite solar …
Fullerene derivatives especially [1,1]-phenyl-C61-butyric-acid-methyl-ester (PC61BM) have been commonly used as electron transport layers and additives of inverted (p-i-n) perovskite solar cells (PVKSCs); however the dielectric constant (the εr) of PC61BM (3.8) is much smaller than those of organolead halide hybrid perovskites (6.5 for …
A high dielectric constant non-fullerene acceptor for …
The majority of organic semiconductors have a low relative dielectric constant (εr < 6), which is an important limitation for organic solar cells (OSCs). A high dielectric constant would reduce the exciton binding …
On the Understandings of Dielectric Constant and Its Impacts on …
Dielectric constant ( ε) is an important parameter affecting the power conversion efficiency of organic solar cells (OSC). Increasing ε of bulk heterojunctions in …
Performance analysis of different dielectrics for solar cells with …
It has been found that the critical dielectric thickness for optimum cell performances depends strongly on the tunneling effective mass of the majority carriers, …
Dielectric Bragg Reflector as Back Electrode for …
To increase PCE at high AVTs, a series of infrared dielectric Bragg reflectors is developed for semi-transparent organic solar cells. Using the multi-layered …
Lowering the dielectric mismatch for efficient inverted perovskite ...
Fullerene derivatives especially [1,1]-phenyl-C61-butyric-acid-methyl-ester (PC61BM) have been commonly used as electron transport layers and additives of inverted (p-i-n) perovskite solar cells (PVKSCs); however the dielectric constant (the εr) of PC61BM (3.8) is much smaller than those of organolead halide hybrid perovskites (6.5 for …
Performance analysis of different dielectrics for solar cells with …
The performance of a TOPCon solar cell depends on the properties of the dielectric material through which tunneling takes place. Common dielectric material used with n-type Si wafer is SiO2 due to its excellent passivation property for n-Si interface. Required thickness of SiO2 is ≈1.5 nm, making its fabrication quite challenging. Moreover, …
Doubling Absorption in Nanowire Solar Cells with Dielectric Shell Optical Antennas …
Semiconductor nanowires (NWs) often exhibit efficient, broadband light absorption despite their relatively small size. This characteristic originates from the subwavelength dimensions and high refractive indices of the NWs, which cause a light-trapping optical antenna effect. As a result, NWs could enable high-efficiency but low-cost solar cells using small …
