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Title: Brilliant yellow color and enhanced NIR reflectance of monoclinic BiVO4 through distortion in VO43 tetrahedra
Authors: Sandhya Kumari, L
Prabhakar Rao, P
Radhakrishnan, A N
Vineetha, J
Sameera, S
Peter Koshy
Keywords: Bismuth vanadate
Yellow pigments
NIR reflectance
Issue Date: 2013
Publisher: Elsevier
Citation: Solar Energy Materials and Solar Cells 112:134-143;May 2013
Abstract: Bright yellow coloration and enhanced NIR reflectance of monoclinic bismuth vanadate are obtained by the substitution of Ta/P into the vanadium sites of BiVO4. Pentavalent metal ion substitution in bismuth vanadate blue shifted the absorption edge leading to bright yellow coloration and the color properties are comparable to that of commercially used praseodymium yellow. Lattice distortion and reduced crystallite size imposed by pentavalent metal ion substitution are responsible for the special optical properties. The synthesized pigments with improved yellow coloration exhibits good NIR reflectance making them potential candidate for cool colorants to reduce the heat build-up.
Appears in Collections:2013

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