| 학회 |
한국재료학회 |
| 학술대회 |
2007년 가을 (11/02 ~ 11/02, 성균관대학교) |
| 권호 |
13권 2호 |
| 발표분야 |
전자재료 |
| 제목 |
Structural and optical properties of ZnO:MgO films prepared by sol-gel spin coating process |
| 초록 |
In this study, ZnO:MgO films were deposited on glass substrates by sol-gel spin coating process from MgO-0at% to MgO-100at%. The samples were prepared at 500°C for 1 hour in air to study the effect of MgO content on the structural and optical properties. Room-temperature photoluminescence (PL) properties of ZnO:MgO films were studied. It was found that within the low MgO content region the visible luminescence increased with increasing MgO. It can be applied for white light emitting diode. In some regions having middle MgO content, a remarkable change in the photoluminescence spectra of ZnO:MgO was observed. Highly intense excitonic emission at room temperature was obtained by dielectric confinement effect. Field emission scanning electron microscopy (FE-SEM) characterizations show that the MgO was segregated in circle form in ZnO at 30at% MgO content. These results will provide new insight into the effect of MgO on ZnO. |
| 저자 |
In-June Kim1, In-Soo Kim2, Se-Young Choi1
|
| 소속 |
1School of New Materials Science and Engineering, 2Yonsei Univ. |
| 키워드 |
ZnO; MgO; photoluminescence
|
| E-Mail |
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