Light trapping for outside laser-display light harvesting

2018 ◽  
Author(s):  
Wen Song ◽  
Guanjun Wang ◽  
Kaian Wang ◽  
Liang Chen ◽  
Cheng Jiao ◽  
...  
Keyword(s):  
Light Harvesting ◽  
Light Trapping ◽  
Laser Display

scholarly journals Periodic Nanophotonic Structures-Based Light Management for Solar Energy Harvesting

2020 ◽  
Author(s):  
Nikhil Deep Gupta
Keyword(s):  
Solar Cells ◽  
Solar Energy ◽  
Light Harvesting ◽  
Light Trapping ◽  
Electrical Energy ◽  
Vital Role ◽  
Photoelectrochemical Cells ◽  
Large Area ◽  
Solar Energy Harvesting ◽  
Nanophotonic Structures

Solar energy has always been an obvious choice for solving the energy issues for the humans for centuries. The two most popular choices, out of many, to harness this infinite source of energy are: solar cells and photoelectrochemical cells. Although both these techniques are quite attractive, they have inherent limitations for tapping all of the incident photons. Maximizing the absorption of incident photons to produce maximum possible electrical output is always the main impetus for the researchers working to streamline these two techniques and making them compatible with existing sources of electrical energy. It has been well established that the light trapping in the solar cells and photoelectrochemical cells can play a vital role in improving their performance. To design light harvesting structures for both these applications, periodic nanophotonic structures have demonstrated stupendous results and shown that they have the real potential to enhance their performance. The chapter, in this regard, presents and reviews the current and historical aspects of the light harvesting structures for these two interesting applications and also discusses about the future of the research to further the performance of these large-area solar-to-electrical conversion transducers.

Dual-grating-induced light harvesting enhancement in organic solar cells

2018 ◽  
Vol 6 (25) ◽  
pp. 11830-11837 ◽  
Author(s):  
Yue-Xing Zhang ◽  
Chen Gao ◽  
Jing-De Chen ◽  
Wei Li ◽  
Yan-Qing Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Light Harvesting ◽  
Light Trapping ◽  
Cost Effective

A simple yet cost-effective paradigm is proposed for light-trapping enhancement of organic solar cells by introducing dual-grating patterns.

scholarly journals Efficient Light Harvesting by Photon Downconversion and Light Trapping in Hybrid ZnS Nanoparticles/Si Nanotips Solar Cells

ACS Nano ◽  
2010 ◽  
Vol 4 (10) ◽  
pp. 5849-5854 ◽  
Author(s):  
Chun-Ying Huang ◽  
Di-Yan Wang ◽  
Chun-Hsiung Wang ◽  
Yung-Ting Chen ◽  
Yaw-Tyng Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Light Harvesting ◽  
Light Trapping ◽  
Zns Nanoparticles

Enhanced Light Harvesting in Plasmonic Dye-Sensitized Solar Cells by Using a Topologically Ordered Gold Light-Trapping Layer

ChemSusChem ◽  
2012 ◽  
Vol 5 (3) ◽  
pp. 572-576 ◽  
Author(s):  
Nailiang Yang ◽  
Qi Yuan ◽  
Jin Zhai ◽  
Tianxin Wei ◽  
Dan Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Light Harvesting ◽  
Light Trapping ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

scholarly journals Spinel zinc ferrite nanostructured thin-films for enhanced light-harvesting in polycrystalline solar cells

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Arun Kumar Shanmugam ◽  
Rajasekar Rathanasamy ◽  
Gobinath Velu Kaliyannan ◽  
Nithyavathy Nagarajan ◽  
Manivasakan Palanisamy
Keyword(s):  
Thin Films ◽  
Solar Cells ◽  
Zinc Ferrite ◽  
Light Harvesting ◽  
Light Trapping ◽  
Fluorescence Analysis ◽  
Trapping Efficiency ◽  
Precipitation Method ◽  
Nanostructured Thin Films ◽  
Co Precipitation

Abstract Spinel zinc ferrite (ZnFe2O4) nanocrystallites are applied as an anti-reflection coating (ARC) for the enhanced light harvesting in polycrystalline silicon solar cells (PCSSC) and its effect were studied. Spinel zinc ferrite nanocrystallites were prepared using precursors of zinc and ferric chloride by co-precipitation method. The morphological, optical, electrical characterizations are comprehensively used to establish the performance of spinel ZnFe2O4 Nanostructured Thin Films (NTF) covered and uncovered PCSSC. Further, X-ray diffraction and fluorescence analysis have been performed to demonstrate the crystallographic patterns and elemental compositions of ZnFe2O4 nanocrystallites. The developed spinel ZnFe2O4 NTF on PCSSC shows the reduction in reflectivity (20.3%), improvement in light trapping efficiency (17.5%) and transmittance of the fabricated spinel ZnFe2O4 NTF was validated with optical and electrical observations.

High-Resolution electron crystallography of the light-harvesting chlorophyll-a/b protein complex from chloroplast membranes

1990 ◽  
Vol 48 (1) ◽  
pp. 610-610
Author(s):  
Werner Kühlbrandt ◽  
Da Neng Wang ◽  
K.H. Downing
Keyword(s):  
High Resolution ◽  
Electron Diffraction ◽  
Chlorophyll A ◽  
Protein Complex ◽  
Structural Integrity ◽  
Light Harvesting ◽  
Lhc Ii ◽  
Diffraction Patterns ◽  
Difference Fourier ◽  
2D Crystals

The light-harvesting chlorophyll-a/b protein complex (LHC-II) is the most abundant membrane protein in the chloroplasts of green plants where it functions as a molecular antenna of solar energy for photosynthesis. We have grown two-dimensional (2d) crystals of the purified, detergent-solubilized LHC-II . The crystals which measured 5 to 10 μm in diameter were stabilized for electron microscopy by washing with a 0.5% solution of tannin. Electron diffraction patterns of untilted 2d crystals cooled to 130 K showed sharp spots to 3.1 Å resolution. Spot-scan images of 2d crystals were recorded at 160 K with the Berkeley microscope . Images of untilted crystals were processed, using the unbending procedure by Henderson et al . A projection map of the complex at 3.7Å resolution was generated from electron diffraction amplitudes and high-resolution phases obtained by image processing .A difference Fourier analysis with the same image phases and electron diffraction amplitudes recorded of frozen, hydrated specimens showed no significant differences in the 3.7Å projection map. Our tannin treatment therefore does not affect the structural integrity of the complex.

Macroorganisation and flexibility of thylakoid membranes

2019 ◽  
Vol 476 (20) ◽  
pp. 2981-3018 ◽  
Author(s):  
Petar H. Lambrev ◽  
Parveen Akhtar
Keyword(s):  
Light Harvesting ◽  
Current Knowledge ◽  
Three Dimensional ◽  
Photosynthetic Apparatus ◽  
Dynamic Responses ◽  
State Transitions ◽  
Photochemical Quenching ◽  
Light Harvesting Complex ◽  
Complex Ii ◽  
Light Harvesting Complex Ii

Abstract The light reactions of photosynthesis are hosted and regulated by the chloroplast thylakoid membrane (TM) — the central structural component of the photosynthetic apparatus of plants and algae. The two-dimensional and three-dimensional arrangement of the lipid–protein assemblies, aka macroorganisation, and its dynamic responses to the fluctuating physiological environment, aka flexibility, are the subject of this review. An emphasis is given on the information obtainable by spectroscopic approaches, especially circular dichroism (CD). We briefly summarise the current knowledge of the composition and three-dimensional architecture of the granal TMs in plants and the supramolecular organisation of Photosystem II and light-harvesting complex II therein. We next acquaint the non-specialist reader with the fundamentals of CD spectroscopy, recent advances such as anisotropic CD, and applications for studying the structure and macroorganisation of photosynthetic complexes and membranes. Special attention is given to the structural and functional flexibility of light-harvesting complex II in vitro as revealed by CD and fluorescence spectroscopy. We give an account of the dynamic changes in membrane macroorganisation associated with the light-adaptation of the photosynthetic apparatus and the regulation of the excitation energy flow by state transitions and non-photochemical quenching.

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