Seeded crystal growth of Zinc oxide (ZnO) by the closed ampoule chemical vapor transport (CVT) is carried out using polyvinyl alcohol (PVA) as a transport agent. Under the conditions of T-S = 1100 degrees C, Delta T = 10 K and the amount of PVA = 0.13-0.91 mg/cm(3), single-crystalline ZnO was grown continuously on the ZnO seed-crystal, of which the surface was (0001) Zn-face. The grown crystals had well-marked growth facets belonged to {10 (1) over bar0} and {10 (1) over bar1} faces. The color of the crystals was changed from pale yellow to dark orange-red depending on the amount of PVA. Typical electron density and the Hall mobility of the crystals were I X 10, 7 cm(-3) and 2 x 10(2) cm(2)/Vs at 300 K, respectively. (c) 2008 Elsevier B.V. All rights reserved.