| 학회 |
한국공업화학회 |
| 학술대회 |
2017년 가을 (11/08 ~ 11/10, 부산 벡스코(BEXCO)) |
| 권호 |
21권 2호 |
| 발표분야 |
무기재료_포스터 |
| 제목 |
Synthesis of the Mn2+-doped ZnSe@ZnS quantum dots |
| 초록 |
Relatively monodisperse and highly luminescent Mn2+-doped ZnSe nanocrystals were synthesized in aqueous solution at 100ºC using the nucleation-doping strategy. The effects were investigated systematically. Using 3-mercaptopropionic acid as capping ligand afforded 3.1 nm wide ZnSe:Mn quantum dots (QDs) with very low surface defect density and which exhibited the Mn2+related orange luminescence. The post-preparative introduction of a ZnS shell at the surface of the Mn2+-doped ZnSe QDs improved their photoluminescence properties, resulting in stronger emission. . Mn2+-doped ZnSe@ZnS QDs were investigated by X-ray differaction spectroscopy(XRD), UV-visible spectroscopy, Photoluminescence spectroscopy(PL). XRD confirms Mn2+-doped ZnSe@ZnS QDs nanocrystal structure. Because of the Ostwald ripening effect, UV spectrum was indicated red-shift. The absorption peak was indicated redshift. The PL of the clear orange solution was monitored in the course of the nanocrystal growth. |
| 저자 |
이유로, 김종규, 유정열, 김우석, 정운호, 박선아, 김은비, 하태훈, 이탁재
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| 소속 |
단국대 |
| 키워드 |
Quantum dots; Zinc; Sellenium; Mn doped.
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| E-Mail |
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