PC light-scattering material containing “pomegranate-like” SAN-SiO2 microspheres with excellent effective scattering range based the large-screen display

Abstract. Light absorption measurements most commonly rely on filter-based measurement techniques. These methods are disturbed by light scattering constituents in the aerosol phase deposited on the filters. The light scattering material changes the optical path of light in the filter matrix increasing the light absorption of the filter. Measurement equipment interpret this wrongly as light absorption by the aerosol. Most light scattering constituents in a sub-micron aerosol are volatile by their nature and they can be volatilized by heating the sample air. This volatilisation significantly alters the optical properties of the urban aerosol and was studied during a short field campaign with two groups of equipment measuring in parallel for six days in April 2009 at the SMEAR III station in Helsinki. When heated, the light scattering constituents were evaporated thus reducing the single-scattering albedo (ω0) of the aerosol by as much as 0.4. With less light scattering constituents in the aerosol phase the mass absorption cross section (MAC) of soot was calculated to be 13.5±0.5 m2 g−1 at λ=545 nm. An oven was set to scan different temperatures which revealed the volatility of the urban aerosol at different temperatures as well as the single-scattering albedo's dependence on the non-volatile volume fraction remaining (NVFR). At 50 °C 79±13% of the volume remained while only 46±8% remained at 150 °C and just 23±6% at 280 °C. At 50 °C ω0 was 0.65±0.06, at 150 °C ω0=0.54±0.06 and at 280 °C ω0=0.33±0.06. We found that absorption coefficients measured at different temperatures showed a temperature dependency possibly indicating initially different mixing states of the non-volatile constituents.

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The research of soft matter properties by light scattering material adding drop additive

Science and Engineering of Composite Materials ◽

10.1515/secm-2014-0267 ◽

2017 ◽

Vol 24 (5) ◽

pp. 699-707

Author(s):

Yao Huang ◽

Daming Wu ◽

Dongyun Ren ◽

Qingyun Meng ◽

Ben Xu

Keyword(s):

Optical Properties ◽

Light Scattering ◽

Soft Matter ◽

Polymerization Temperature ◽

Temperature Decrease ◽

Preparation Temperature ◽

Property Change ◽

Compound Material ◽

Scattering Material

AbstractIn the present work, we investigated the effects of the addition of α-hydroxylethyl ferrocene, polymerization initiator and pre-polymer on preparation temperature, microstructure and optical properties of PMMA/PS compound light scattering material. It was found that the haze of the compound material increases significantly from 64% to 84% after introducing styrene (St) pre-polymer. The addition of α-hydroxylethyl ferrocene also leads to several notable properties change of the composite materials including the in situ polymerization temperature decrease to 300 K. The optical property change after the addition of small amount of α-hydroxylethyl ferrocene and prepolymer (St) demonstrates the soft matter characteristic of PMMA.

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Preparation and characterization of polymethyl methacrylate light-scattering material

Polymer Bulletin ◽

10.1007/s00289-019-02909-6 ◽

2019 ◽

Vol 77 (6) ◽

pp. 3223-3235

Author(s):

Jingzhe Jiang ◽

Anqi Wei ◽

Jianping Li ◽

Yue Ji ◽

Huijun Qiang ◽

...

Keyword(s):

Light Scattering ◽

Polymethyl Methacrylate ◽

Scattering Material

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Novel use of nanodiamonds as light-scattering material in dye-sensitized solar cells

Journal of Materials Science Materials in Electronics ◽

10.1007/s10854-016-4417-5 ◽

2016 ◽

Vol 27 (5) ◽

pp. 5225-5232 ◽

Cited By ~ 7

Author(s):

Mohammad Hadi Karimi Tafti ◽

Seyed Mohammad Sadeghzadeh

Keyword(s):

Solar Cells ◽

Light Scattering ◽

Dye Sensitized Solar Cells ◽

Dye Sensitized ◽

Scattering Material ◽

Sensitized Solar Cells

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White Painting Pigment as a Low-Cost Light Scattering Material for Bilayer Photoelectrodes of Dye-Sensitized Solar Cells

Journal of Nepal Physical Society ◽

10.3126/jnphyssoc.v5i1.26874 ◽

2019 ◽

Vol 5 (1) ◽

pp. 1-5

Author(s):

P. Joshi

Keyword(s):

Solar Cells ◽

Light Scattering ◽

Low Cost ◽

Dye Sensitized Solar Cells ◽

Scattering Layer ◽

White Pigment ◽

Main Layer ◽

Dye Sensitized ◽

Scattering Material ◽

Sensitized Solar Cells

White pigment (DuPont R902+) has been used as a light scattering material in the preparation of bilayerphotoelectrodes of dye-sensitized solar cells (DSCs). The X-ray diffraction (XRD) pattern of the white pigment revealed that the material consists of rutile phase of titanium dioxide. The light scattering layer prepared from the white pigment was coated onto the main-layer of the photo electrodes of DSCs. The solar cells with and without light scattering layer were tested in the simulated light of 100 mW/cm2. The DSCs with the light scattering layer generated more current density than the DSCs without scattering layer and the overall light to electric power conversion efficiency of DSCs with the light scattering layer was ~4.00 % compared with 3.25 % efficiency of the DSCs without the scattering layer.

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