Cathodoluminescence Study of Bi3+-Doped YNbO4 Phosphor
β Scribed by Bahng, J.H. ;Oh, E.S. ;Seo, S.H. ;Kim, J.S. ;Lee, M. ;Park, H.L. ;Lee, Choong-il ;Kim, G.C. ;Kim, K.J.
- Publisher
- John Wiley and Sons
- Year
- 2002
- Tongue
- English
- Weight
- 93 KB
- Volume
- 191
- Category
- Article
- ISSN
- 0031-8965
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The 15N NMR spectra of the novel seven-membered 1,2,3,5-tetrazepinone ring systems were studied. The chemical shift of N-2 was found to be signiΓcantly responsive to substituent changes at the phenyl ring. As the electron-withdrawing character of the substituents increased, N-2 became more deshielde