ZnS와 SnO 혼합 분말을 열 증발시켜 성장한 팔면체 Zn2SnO4 결정과 육각 원통형 ZnO 결정

• Published in: 대한금속·재료학회지, 62(9) pp. 721 - 725
• Main Author: 이근형
• Format: Journal Article
• Language: Korean
• Published: 대한금속·재료학회 01.09.2024
• Subjects: 재료공학
• ISSN: 1738-8228; 2288-8241

Octahedron-shaped zinc stannate (Zn2SnO4) crystals and hexagonal cylinder-like ZnO crystals weresynthesized through a simple thermal evaporation method under uncomplicated conditions of air atmosphere. The Zn2SnO4 octahedrons were grown by heating a mixture of ZnS and SnO powders, and the ZnO hexagonalcylinder-like crystals were fabricated by heating mixtures of ZnS, SnO and graphite powders. X-ray diffractionanalysis confirmed that the Zn2SnO4 crystals had a cubic inverse spinel crystal structure, and the ZnO crystalshad a hexagonal wurtzite crystal structure. Scanning electron microscopy analysis revealed that the Zn2SnO4octahedrons had six vertices and eight equilateral triangular faces with very smooth surfaces, and the ZnOcrystals had two parallel hexagonal bases and six side faces. Judging from the crystal structure of Zn2SnO4,the octahedral crystals were covered with eight {111} planes. Considering the crystal structure of ZnO, thehexagonal cylinder-like crystals were enclosed by two {001} basal planes and six {100} side planes, whichindicated that the ZnO crystals were grown along the [001] direction. When the amount of graphite in thesource powder was increased, the aspect ratio of the hexagonal cylinder-like ZnO crystals increased. Energydispersive x-ray spectroscopy analysis also showed that the octahedral crystals were Zn2SnO4, and thehexagonal cylinder-like crystals were ZnO. KCI Citation Count: 0