Blue, green, and red emission from undoped and doped ZnGa2O4 colloidal nanocrystals
- Authors
- Byun, Ho-June; Kim, Jong-Uk; Yang, Heesun
- Issue Date
- 9-Dec-2009
- Publisher
- IOP PUBLISHING LTD
- Citation
- NANOTECHNOLOGY, v.20, no.49
- Journal Title
- NANOTECHNOLOGY
- Volume
- 20
- Number
- 49
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/21740
- DOI
- 10.1088/0957-4484/20/49/495602
- ISSN
- 0957-4484
- Abstract
- Undoped, Tb3+- and Eu3+-doped ZnGa2O4 colloidal nanocrystals were synthesized by a nonhydrolytic hot solution chemistry. Undoped nanocrystals exhibited an intrinsic blue emission peaking at 437 nm by self-activated transition. The emissions of Tb3+- and Eu3+-doped ZnGa2O4 nanocrystals consisted of their own characteristic green and red line peaks (D-5(4)-F-7(j) transitions), respectively. Synthetic parameters such as activator concentration and reaction time were varied to investigate their effects on luminescent properties. Tb3+-doped colloidal nanocrystals synthesized for a short reaction time showed an unprecedented, exclusively green luminescence with the host blue emission effectively suppressed. On the other hand, the emission of Eu3+-doped ones was weak with the host emission persistently present regardless of reaction time.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - Graduate School > Materials Science and Engineering > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/21740)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.