Potential cerium precursors for blue colour in thin film electroluminescent devices grown by atomic layer epitaxy
✍ Scribed by Tuula Leskelä; Kirsi Vasama; Gitte Härkönen; Pertti Sarkio; Mauri Lounasmaa
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 468 KB
- Volume
- 6
- Category
- Article
- ISSN
- 1616-301X
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✦ Synopsis
Two volatile pdiketonato complexes of trivalent cerium, Ce(thd),phen and Ce(tpm),, were prepared and characterised with TG, DTA, FTlR and MS and used in ALE processing of electroluminescent SrS : Ce thin films. The results were compared with those obtained with the typically used precursor Ce(thd),. T G measurements were employed to simulate the precursor vaporisation in ALE. The most interesting results were the enhanced electroluminescence obtained with Ce(thd),phen and the colour shift towards blue with the fluorinated precursor Ce(tpm),. With the latter precursor the luminance was poor and the growth rate of SrS was decreased as well.