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Some novel aspects of DC and AC powder electroluminescence (DCEL)

Some novel aspects of DC and AC powder electroluminescence (DCEL)

Staple, Alan John (2007) Some novel aspects of DC and AC powder electroluminescence (DCEL). PhD thesis, University of Greenwich.

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Abstract

A comparison of phosphor preparation methods was carried out. Scanning electron microscopy (SEM), X-ray diffraction (XRD) and photoluminescence measurements were used to evaluate the methods. The most suitable for DC electroluminescence (DCEL) was found to be a thioacetamide synthesis.

The DCEL forming process was investigated using Laser-Raman spectroscopy. This showed no changes in copper concentration in the formed layer of a DCEL device following the forming process, suggesting that the forming process may be due to oxidation.

Indium tin oxide (ITO) conductive-coated plastic was used successfully as a replacement for ITO-coated glass in DCEL devices and methods were developed for the use of cross-linked linseed oil as a binder in DCEL panels, producing a very flexible phosphor/binder layer.

The feasibility of producing infra-red emitting electroluminescent devices for particular applications was investigated. ZnCdS: Cu layers were incorporated into DCEL, and ACEL devices. The DCEL devices showed a strong photoelectric effect. The ACEL devices produced infra-red emission. Further investigation of the photoelectric effect in DCEL and ACEL devices was carried out and work functions were determined for a variety of systems.

Item Type: Thesis (PhD)
Additional Information: uk.bl.ethos.442073
Uncontrolled Keywords: electroluminescence, Laser-Raman spectroscopy, electromagnetic radiation, photoelectric effect,
Subjects: Q Science > QC Physics
Faculty / Department / Research Group: Faculty of Engineering & Science > Department of Pharmaceutical, Chemical & Environmental Sciences
Last Modified: 17 Oct 2016 09:11
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
URI: http://gala.gre.ac.uk/id/eprint/6308

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