Fig. 2From: Structural and Visible-Near Infrared Optical Properties of Cr-Doped TiO2 for Colored Cool PigmentsSEM photographs of undoped TiO2 and Ti1 − x Cr x O2 powders: a undoped TiO2, 800 °C; b x = 0.00625, 800 °C; c x = 0.0375, 800 °C; d undoped TiO2, 1000 °C; e x = 0.00625, 1000 °C; and f x = 0.0375, 1000 °CBack to article page