| 학회 |
한국화학공학회 |
| 학술대회 |
2016년 봄 (04/27 ~ 04/29, 부산 BEXCO) |
| 권호 |
22권 1호, p.739 |
| 발표분야 |
유동층 |
| 제목 |
Optical characteristics of nano-structured ZnO:Ga powders prepared by a fluidized reactor |
| 초록 |
Zinc oxide has been understood as one of promising materials to be developed as gas sensing materials by detecting several gases in various different processes. Optical characteristics of ZnO:Ga powders prepared in a continuous and one-step fluidized reactor were investigated. To control the ZnO, Ga3+ was doped into the lattice of host material. The prepared ZnO:Ga powders were analyzed by means of SEM, XRD, DRS and PL. The intensity and shift of main peaks in XRD patterns and crystallite size of ZnO:Ga powders increased with increasing flow rate of micro bubbles(UMB), indicating that the fluidization of micro drops during the formation of powders could help the doping of Ga3+ ions into the lattice of ZnO. The XRD, PL and DRS analyses indicated that Ga3+ was successfully doped into ZnO lattice. The surface morphology of ZnO:Ga powders became more wrinkled and furrowed with increasing UMB, due to the increase of micro shear force and strain. The room temperature photoluminescence indicated that the crystal quality of as-prepared ZnO:Ga powders was getting better with increasing UMB. |
| 저자 |
임대호1, 유동준1, 전종설1, 양시우1, 이찬기2, 강경민3, 강 용1
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| 소속 |
1충남대, 2고등기술(연), 3(주) 젠텍 |
| 키워드 |
유동층 반응기 및 공정 |
| E-Mail |
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| 원문파일 |
초록 보기 |
