- 标题
- 摘要
- 关键词
- 实验方案
- 产品
-
[IEEE 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC) - Chicago, IL, USA (2019.6.16-2019.6.21)] 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC) - Efficiency Improvement of Planar Silicon Solar Cells Utilizing Localized Surface Plasmon Resonance of Silver Nanoparticles
摘要： In this work we develop a time- and cost-effective method of fabricating an antireflection structure on Si solar cells utilizing the localized surface plasmon resonance (LSPR) of Ag nanoparticles (NPs). Covered with an Al2O3 layer to prevent degradation, the NP decorated Si solar cell exhibits a broadband light absorption enhancement, having a low weighted average spectral reflectance (Rave) value of 9.5%, and exhibits the highest absolute gain of 19.2% in external quantum efficiency (EQE) at 700 nm and an overall 20% relative increase in power efficiency (η) compared to the reference Si solar cell without NPs.
关键词： metal nanoparticles,localized surface plasmon resonance,antireflection coating,silicon
更新于2025-09-23 15:21:01
-
Wide angle antireflection in metal nanoparticles embedded in a dielectric matrix for plasmonic solar cells
摘要： The photon density in solar cells is usually optimized through tailored antireflection coatings (ARCs). We develop an analytical model to describe metal hybrid nanoparticles (NPs)-based ARC, where metal NPs are embedded in a standard ARC on a Si-substrate. A point dipole approach is implemented to calculate diffuse reflectance by NPs, while transfer matrix method is used for specular reflectance from front surface. We found that embedding metal NPs in SiN ARC enhances the antireflection property of the former at non-normal angles of incidence (AOI) of light. Electric field distribution patterns of radiation in the substrate by NPs are calculated for various AOI, which support the improvements in the antireflection property. Weighted solar power transmittances from ARCs are calculated, which show that Ag-NPs (radius = 35 nm) embedded in SiN (thickness = 70 nm) performs better than SiN for AOI over 74°, whereas Al-NPs (radius = 35 nm) embedded in SiN (thickness = 70 nm) performs better for AOI over 78°.
关键词： solar cells,plasmonics,metal nanoparticles,silicon,transfer matrix method,antireflection coating
更新于2025-09-23 15:19:57
-
Improving the efficiency of a-Si:H/c-Si thin heterojunction solar cells by using both antireflection coating engineering and diffraction grating
摘要： In this paper, we present an analytical study of the impact of light trapping and multilayer antireflection coating (ARC) on the electrical characteristics of n(a-Si:H)/i(a-Si:H)/p(c-Si)/p+(C-Si) heterojunction solar cells with intrinsic thin layer (SHJ). The developed analytical model considers a triangular texture morphology of the solar cell top surface and a double ARC layer. This model serves as a fitness function to optimize the device reliability against the interfacial traps using Grey Wolf optimization approach (GWO). The optimized solar cell reveals a high short circuit current ISC=47.9mA, an open circuit voltage VOC=0.56V, fill factor FF=74.72% and a conversion efficiency improvement in the order of 30% over conventional planar solar cells efficiency. Not only the optimized SHJ solar cell exhibits higher performance in terms of figure of merits, but also shows superior interfacial traps reliability at the amorphous/crystalline interface. This reliability enhancement is due to a better surface texture control and intrinsic thin film layer tuning provided by GWO approach.
关键词： conversion efficiency,surface texture,GWO approach,interfacial defects,antireflection coating
更新于2025-09-19 17:15:36
-
Ga(In)AsP Lateral Nanostructures as the Optical Component of GaAs-Based Photovoltaic Converters
摘要： The possibility of using lateral Ga(In)AsP nanostructures grown by the catalytic method in a quasi-closed volume from phosphorus and indium vapors on the GaAs (100) surface as an antireflection coating for photovoltaic devices is considered for the first time. It is shown that, at a fixed growth temperature, it is possible to control the surface morphology by changing the growth duration. The surface morphology is examined by scanning electron and atomic force microscopies. It is shown that the antireflection properties of the surface in the range 400–800 nm are related to its structure. The use of such a coating in GaAs-based photocells demonstrated a significant increase in the external quantum yield of photovoltaic converters.
关键词： Ga(In)AsP,nanostructures,antireflection coating,catalytic growth
更新于2025-09-16 10:30:52
-
Surface modification of silicon solar cell using TiO2 and Ta2O5: fabrication and characterization
摘要： We report the fabrication and characterization of surface modified silicon solar cells with the deposition of amorphous tantalum oxide (Ta2O5) and crystalline titanium oxide (TiO2) nanolayers of thickness 54.9 nm and 69.82 nm, respectively, as antireflection coating (ARC) using RF-sputtering technique. The thickness of the films measured by variable angle spectroscopic ellipsometry and scanning electron microscopy is in close agreement. The transmittance measurement as a function of wavelength of incident light showed that the thin-films deposited have lowest effective reflectance in the wavelength range of 380 nm–570 nm indicating reduced light reflection and enhanced light trapping as observed from UV–Vis measurements. Illuminated current–voltage measurements showed an increase in the short circuit current density (Jsc) and an increase of 1.54% in the efficiency of the antireflection-coated cells. Results of the External Quantum Efficiency measurement as a function of wavelength for the solar cells with ARC is also presented in this paper.
关键词： Antireflection coating,TiO2,Ta2O5,RF-sputtering,Silicon solar cell
更新于2025-09-11 14:15:04