TY - JOUR
T1 - Structural, optical, electrical and morphological properties of different concentration sol-gel ZnO seeds and consanguineous ZnO nanostructured growth dependence on seeds
AU - Rana, Abu ul Hassan Sarwar
AU - Chang, Seung Bo
AU - Chae, Hyun Uk
AU - Kim, Hyun Seok
N1 - Publisher Copyright:
© 2017 Elsevier B.V.
PY - 2017
Y1 - 2017
N2 - Previous studies on solution concentration, density, coating time, and annealing temperature of sol-gel ZnO seeds have underrated the growth of ZnO nanostructures. However, these details are quite vital and central to growth of vertically aligned ZnO nanorods (ZNRs). The current study investigates ZNR structure and growth dependence upon solution concentration, thickness, density, diameter, annealing time, annealing temperature, and crystalline quality of sol-gel spin coated ZnO seeds. For growth optimization, we used 0.02, 0.04, and 0.09 M zinc acetate seeds in n-propanol coated two and five times on a p-Si substrate. We found that seed thickness and density depend upon successive coats and the seed solution concentration. The morphology, alignment, density, aspect ratio, crystalline quality, and optical properties of ZNRs are directly related to the seed parameters. The defect centers in seeds and ZNRs are independent of each other. We also studied the electrical characteristics of spin coated seeds, which is a hallmark in the research and development of seed oriented growth of ZnO nanostructures.
AB - Previous studies on solution concentration, density, coating time, and annealing temperature of sol-gel ZnO seeds have underrated the growth of ZnO nanostructures. However, these details are quite vital and central to growth of vertically aligned ZnO nanorods (ZNRs). The current study investigates ZNR structure and growth dependence upon solution concentration, thickness, density, diameter, annealing time, annealing temperature, and crystalline quality of sol-gel spin coated ZnO seeds. For growth optimization, we used 0.02, 0.04, and 0.09 M zinc acetate seeds in n-propanol coated two and five times on a p-Si substrate. We found that seed thickness and density depend upon successive coats and the seed solution concentration. The morphology, alignment, density, aspect ratio, crystalline quality, and optical properties of ZNRs are directly related to the seed parameters. The defect centers in seeds and ZNRs are independent of each other. We also studied the electrical characteristics of spin coated seeds, which is a hallmark in the research and development of seed oriented growth of ZnO nanostructures.
KW - Defects
KW - Nanorods
KW - Seeds
KW - Sol-gel
KW - Spin coating
KW - ZnO
UR - http://www.scopus.com/inward/record.url?scp=85029809674&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2017.09.231
DO - 10.1016/j.jallcom.2017.09.231
M3 - Article
AN - SCOPUS:85029809674
SN - 0925-8388
VL - 729
SP - 571
EP - 582
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
ER -