The Relation between Light-Absorption and Light -Scattering for Liquids

1922 ◽  
Vol 26 (5) ◽  
pp. 471-476 ◽  
Author(s):  
W. H. Martin
Keyword(s):  
Light Scattering ◽  
Light Absorption

Enhanced Absorption of Single Silicon Nanowire with Si3N4 Shell for Photovoltaic Applications

2015 ◽  
Vol 1090 ◽  
pp. 173-177 ◽  
Author(s):  
Wen Fu Liu ◽  
Hua Li Hao
Keyword(s):  
Light Scattering ◽  
Light Absorption ◽  
Calculated Result ◽  
Scattering Theory ◽  
Enhancement Factor ◽  
Shell Thickness ◽  
Silicon Nanowire ◽  
Enhanced Absorption ◽  
Photovoltaic Applications

Based on the Lorenz-Mie light scattering theory, we have calculated the light absorption of single silicon nanowire with Si3N4coating, and compared with pure single silicon nanowire. The calculated result indicates that there exists an enhanced absorption in the Si3N4-coated silicon nanowire and shows a great photocurrent enhancement factor (~70%) for the coaxial NW with the shell thickness of ~70 nm. For a special shell thickness (175 nm) in the Si3N4-coated silicon nanowire forr= 150 nm, the enhancement comes up to ~98.45%.

scholarly journals Hierarchical structured polymers for light-absorption enhancement of silicon-based solar power systems

RSC Advances ◽  
2016 ◽  
Vol 6 (60) ◽  
pp. 55159-55166 ◽  
Author(s):  
Jung Woo Leem ◽  
Minkyu Choi ◽  
Bhaskar Dudem ◽  
Jae Su Yu
Keyword(s):  
Light Scattering ◽  
Power Systems ◽  
Light Absorption ◽  
Solar Power ◽  
Absorption Enhancement ◽  
Self Cleaning ◽  
Silicon Based

Hierarchical structured polymer (i.e., HS-NOA63) layer with antireflection/light-scattering and self-cleaning functions efficiently improves the efficiency of silicon-based solar power systems.

Allometric Scaling of Light Absorption and Scattering by Phytoplankton Cells

1991 ◽  
Vol 48 (5) ◽  
pp. 763-767 ◽  
Author(s):  
Susana Agustí
Keyword(s):  
Light Scattering ◽  
Cell Size ◽  
Light Absorption ◽  
Allometric Scaling ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Cross Sectional ◽  
The Cross ◽  
Light Capture ◽  
Phytoplankton Cells

Examination of the allometric scaling of light absorption (acell) and scattering (bcell) by 28 phytoplankton species showed that light absorption is scaled to the cross-sectional area of the cells (log acell (square micrometres per cell) = −1.06 + 2.32 log d (micrometres)) whereas light scattering is scaled to their volume (log bcell (square micrometres per cell) = −1.09 + 3.45 log d (micrometres)). The scaling of light absorption to the cross-sectional area of algal cells is explained by a decrease in intracellular chlorophyll a concentration as cell size increases, thereby avoiding inefficient light capture by photosynthetic pigments. The scaling of light scattering to cell volume conforms to the general theory for large particles (Mie theory). Light absorption by phytoplankton cells, unlike light scattering, deviates from that of nonliving particles because of the covariation between pigment content and cell size that help prevent self-shading.

Simultaneous measurement of changes in light absorption due to the reduction of cytochrome c oxidase and light scattering in rat brains during loss of tissue viability

2008 ◽  
Vol 47 (22) ◽  
pp. 4164 ◽  
Author(s):  
Satoko Kawauchi ◽  
Shunichi Sato ◽  
Hidetoshi Ooigawa ◽  
Hiroshi Nawashiro ◽  
Miya Ishihara ◽  
...  
Keyword(s):  
Light Scattering ◽  
Cytochrome C ◽  
Cytochrome C Oxidase ◽  
Light Absorption ◽  
Simultaneous Measurement ◽  
Tissue Viability

scholarly journals Structure vs. excitonic transitions in self-assembled porphyrin nanotubes and their effect on light absorption and scattering

Nanoscale ◽  
2015 ◽  
Vol 7 (48) ◽  
pp. 20435-20441 ◽  
Author(s):  
Oriol Arteaga ◽  
Adolf Canillas ◽  
Zoubir El-Hachemi ◽  
Joaquim Crusats ◽  
Josep M. Ribó
Keyword(s):  
Light Scattering ◽  
Light Absorption ◽  
Resonance Light Scattering ◽  
Excitonic Absorption ◽  
Self Assembled ◽  
Excitonic Transitions

Excitonic absorption is the main contribution to the extinction in isolated porphyrin nanotubes but, in bundles, resonance light scattering is dominant.

Light trapping in thin film silicon solar cells via phase separated disordered nanopillars

Nanoscale ◽  
2018 ◽  
Vol 10 (14) ◽  
pp. 6651-6659 ◽  
Author(s):  
Yidenekachew J. Donie ◽  
Michael Smeets ◽  
Amos Egel ◽  
Florian Lentz ◽  
Jan B. Preinfalk ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Light Scattering ◽  
Polymer Blend ◽  
Light Absorption ◽  
Light Trapping ◽  
Silicon Solar Cells ◽  
Thin Film Silicon ◽  
Thin Film Photovoltaics

Disordered nanopillars fabricated by polymer blend lithography are used in light scattering reflectors to improve light absorption in thin-film photovoltaics.

Demonstration of light absorption and light scattering using smartphones

2019 ◽  
Vol 55 (1) ◽  
pp. 015012
Author(s):  
Khemchira Malisorn ◽  
Surawut Wicharn ◽  
Suwan Plaipichit ◽  
Chinnawut Pipatpanukul ◽  
Nongluck Houngkamhang ◽  
...  
Keyword(s):  
Light Scattering ◽  
Light Absorption

scholarly journals Converting plasmonic light scattering to confined light absorption and creating plexcitons by coupling a gold nano-pyramid array onto a silica–gold film

2019 ◽  
Vol 4 (2) ◽  
pp. 516-525 ◽  
Author(s):  
Peng Zheng ◽  
Sujan Kasani ◽  
Nianqiang Wu
Keyword(s):  
Light Scattering ◽  
Light Absorption ◽  
Gold Film ◽  
Large Area ◽  
Light Management

This report presents a facile microfabrication-compatible approach to fabricate a large area of plasmonic nano-pyramid array-based antennas and demonstrates effective light management by tailoring the architecture.

scholarly journals Characterization and source apportionment of aerosol light scattering in a typical polluted city in the Yangtze River Delta, China

2020 ◽  
Vol 20 (17) ◽  
pp. 10193-10210
Author(s):  
Dong Chen ◽  
Yu Zhao ◽  
Jie Zhang ◽  
Huan Yu ◽  
Xingna Yu
Keyword(s):  
Light Scattering ◽  
Organic Carbon ◽  
Source Apportionment ◽  
Light Absorption ◽  
Yangtze River ◽  
Mie Theory ◽  
Yangtze River Delta ◽  
The Yangtze River ◽  
Aerosol Scattering ◽  
The Yangtze River Delta

Abstract. Through online observation and offline chemistry analysis of samples at suburban, urban and industrial sites (NJU, PAES and NUIST, respectively) in Nanjing, a typical polluted city in the Yangtze River Delta, we optimized the aerosol light scattering estimation method, identified its influencing factors and quantified the contributions of emission sources to aerosol scattering. The daily average concentration of PM2.5 during the sampling period (November 2015–March 2017) was 163.1±13.6 µg m−3 for the heavily polluted period, 3.8 and 1.6 times those for the clean (47.9±15.8 µg m−3) and lightly polluted (102.1±16.4 µg m−3) periods, respectively. The largest increase in PM concentration and its major chemical components was found at the size range of 0.56–1.0 µm for the heavily polluted period, and the contributions of nitrate and sulfate were the greatest in the 0.56–1.0 µm fraction (19.4 %–39.7 % and 18.1 %–34.7 %, respectively) for all the three periods. The results indicated that the large growth of nitrate and sulfate was one of the major reasons for the polluted periods. Based on measurements at the three sites, the US Interagency Monitoring of Protected Visual Environments (IMPROVE) algorithm was optimized to evaluate aerosol scattering in eastern China. The light absorption capacity of organic carbon (OC) was estimated to account for over half of the methanol-soluble organic carbon (MSOC) at NJU and PAES, whereas the fraction was lower at NUIST. Based on the Mie theory, we found that the high relative humidity (RH) could largely enhance the light scattering effect of accumulation particles, but it had few effects on the mixing state of particles. The scattering coefficients of particles within the 0.56–1.0 µm range contributed the most to the total scattering (28 %–69 %). The mass scattering efficiency (MSE) of sulfate and nitrate increased with the elevated pollution level, whereas a low MSE of organic matter (OM) was found for the heavily polluted period, probably because a proportion of OM had only a light absorption property. A coupled model of positive matrix factorization (PMF) and the Mie theory was developed and applied for the source apportionment of aerosol light scattering. Coal burning, industry and vehicles were identified as the major sources of the reduced visibility in Nanjing, with an estimated collective contribution at 64 %–70 %. The comparison between the clean and polluted period suggested that the increased primary particle emissions from vehicles and industry were the major causes of the visibility degradation in urban and industrial regions, respectively. In addition, secondary aerosols were a great contributor to the reduced visibility.

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