@article{25715,
  keywords = {Cool roofs, Pigment characterization, Solar spectral optical properties, Kubelka-Munk absorption and backscattering coefficients, Titanium dioxide},
  author = {Ronnen M Levinson and Paul H Berdahl and Hashem Akbari},
  title = {Solar spectral optical properties of pigments—Part II: survey of common colorants},
  abstract = {<p>Various pigments are characterized by determination of parameters <em>S</em> (backscattering) and <em>K</em> (absorption) as functions of wavelength in the solar spectral range of 300–2500&nbsp;nm. Measured values of <em>S</em> for generic titanium dioxide (rutile) white pigment are in rough agreement with values computed from the Mie theory, supplemented by a simple multiple scattering model. Pigments in widespread use are examined, with particular emphasis on those that may be useful for formulating non-white materials that can reflect the near-infrared (NIR) portion of sunlight, such as the complex inorganic color pigments (mixed metal oxides). These materials remain cooler in sunlight than comparable NIR-absorbing colors. NIR-absorptive pigments are to be avoided. High NIR reflectance can be produced by a reflective metal substrate, an NIR-reflective underlayer, and/or by the use of a pigment that scatters strongly in the NIR.</p>},
  year = {2005},
  journal = {Solar Energy Materials and Solar Cells},
  volume = {89},
  number = {4},
  pages = {351-389},
  month = {12/2005},
  doi = {10.1016/j.solmat.2004.11.013},
  language = {eng},
}