
| Title | Solar spectral optical properties of pigments--Part II: survey of common colorants |
| Publication Type | Journal Article |
| Year of Publication | 2005 |
| Authors | Levinson, Ronnen M., Paul Berdahl, and Hashem Akbari |
| Journal | Solar Energy Materials and Solar Cells |
| Volume | 89 |
| Pagination | 351-389 |
| Abstract | Various pigments are characterized by determination of parameters S (backscattering) and K (absorption) as functions of wavelength in the solar spectral range of 300-2500 nm. Measured values of S 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. |
| Notes | 0927-0248Added to JabRef: 2010.04.19 |
| URL | http://dx.doi.org/10.1016/j.solmat.2004.11.013 |
| DOI | DOI: 10.1016/j.solmat.2004.11.013 |