1. Emission Spectra of Tb 3+ :PVA Polymer Films.
- Author
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Raju, G.Seeta Rama, Buddhudu, S., Rajulu, A.Varada, and Devi, L.Ganga
- Subjects
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POLYMERS , *DOPED semiconductors , *THIN films , *ELECTRONIC excitation , *FLUORESCENCE , *POLYVINYL alcohol - Abstract
This paper reports on the development and optical analysis of Tb 3+ ‐doped polyvinyl alcohol (PVA) films. A reference PVA film has also been prepared for which X‐ray diffraction (XRD) spectral profile has been carried out; it was found that this polymer possesses a semi crystalline nature. Spectral analysis of the Tb 3+ :PVA polymer film has been made based on the measurement of the excitation, emission, and decay curves of the emission transitions ( 5 D 4 → 7 F 6 , 5,4&3 ). Under a UV source (254 nm), a bright green emission was noticed from the surface of Tb 3+ :PVA film. The current study reveals that this terbium polymer film could be suggested as a novel green luminescent material. [ABSTRACT FROM AUTHOR]
- Published
- 2006
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