Synthesis and characterization of a new high NIR reflective ytterbium molybdenum oxide and related doped pigments

Synthesis and Characterization of Yellow Pigments of Bi1.7RE0.3W0.7Mo0.3O6 (RE = Y, Yb, Gd, Lu) with High NIR Reflectance

“…Furthermore, the colors of the pigments become saturated, which can be observed from C* (from 20.77 to 71.53). Because the H°value of the samples are close to 90 (H°= 70− 105°for yellow), the hue angles (H°) make an allusion to the intense yellow color of synthetic pigments, 19,40 which further indicates the excellent yellow pigments. As mentioned above, the colors of samples are tuned from faint yellow to brilliant yellow-orange.…”

IR Reflective LaPO4 Ceramic Colorant Reinforced Polymer Composite Coatings on Glass and Metal Substrates for Heat Management Applications

“…The wavelength of Sunlight that reaches the Earth's surface conventionally ranges from 300 to 2500 nm and 5% of that is in the form of ultraviolet (UV), around 42% occurs in the visible and 53% in the infrared region (IR). [1] More than 50% of the total irradiated solar energy falls within the NIR region and the highest heat carriers of the region are in between 700 to 1100 nm. [2] The transmission of these IR waves through glass windows and concrete roofs raises the indoor temperature of the buildings and automobiles.…”

“…The Infrared and ultraviolet radiations in the solar spectrum cause heat build‐up in building structures, deterioration of organic dyes and decomposition of polymeric components. The wavelength of Sunlight that reaches the Earth's surface conventionally ranges from 300 to 2500 nm and 5% of that is in the form of ultraviolet (UV), around 42% occurs in the visible and 53% in the infrared region (IR) [1] . More than 50% of the total irradiated solar energy falls within the NIR region and the highest heat carriers of the region are in between 700 to 1100 nm [2] .…”

Novel Orange Color Pigments Based on La3LiMnO7

“…Although the bayferrox orange pigment is environmentally friendly, the vividness of this pigment is not sufficient. Therefore, development of environmentally friendly inorganic orange pigments is required, and several studies have been reported [ 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 ]. Some compounds, such as La 2 Ce 2− x W 0.5 x Fe 0.5 x O 7+ δ [ 14 ], Sr 4 Mn 2 Cu 0.5 Zn 0.5 O 9 [ 15 ], and SrBaCe 0.6 Tb 0.4 O 4 [ 3 ], for example, have been proposed and exhibit an orange color.…”