Study of structural and optical properties of ZnAlQ{sub 5} (zinc aluminum quinolate) organic phosphor for OLED applications
- Physics, Department of Sciences and Humanities, National Institute of Technology,Uttarakhand-246174 (India)
- Department of Materials Science and Engineering and Chemical Engineering,University Carlos III of Madrid, Avd. Universidad 30, 28911 Leganes, Madrid (Spain)
The various composition of ZnAlQ{sub 5} such as Zn{sub 1.5}A{sub 10.5}Q{sub 5}, Zn{sub 1}Al{sub 1}Q{sub 5}, Zn{sub 0.5}Al{sub 1.5}Q{sub 5} organic phosphors were prepared via simple cost effective co-precipitation method. The FTIR, SEM, photoluminescence analysis of the prepared phosphors were reported. ZnQ{sub 2} and AlQ{sub 3} were also prepared by similar method and their properties were compared with different composition of ZnAlQ{sub 5}. The structural elucidation in the form of stretching frequencies of chemical bonds of the prepared phosphor was carried out using Fourier Transform Infrared Spectroscopy (FTIR). The stretching frequency analysis confirms the formation of prepared phosphor materials. The SEM analysis shows the surface morphological behavior of prepared phosphor materials. Greenish photoluminescence were observed at 505 to 510 nm for the different composition of ZnAlQ{sub 5},in which Zn{sub 1.5}Al{sub 0.5}Q{sub 5} shows maximum luminescence intensity at 505 nm. PL emission of ZnQ{sub 2} was observed at 515 nm, while for AlQ{sub 3} at 520 nm. The blue shift of 10 nm was observed in Zn{sub 1.5}A{sub 10.5}Q{sub 5} due to modification of energy level due to presence of Zn{sup 2+} and Al{sup 3+}. The enhancement in PL intensity was observed in Zn{sub 1.5}A{sub 10.5}Q{sub 5} compared to the other composition due to transfer of energy between Zn{sup 2+} and quinolate complex. Optical properties of the prepared materials were evaluated for possible applications in organic light emitting devices (OLED).
- OSTI ID:
- 22606524
- Journal Information:
- AIP Conference Proceedings, Vol. 1728, Issue 1; Conference: ICC 2015: International conference on condensed matter and applied physics, Bikaner (India), 30-31 Oct 2015; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALUMINIUM COMPOUNDS
CHEMICAL BONDS
COPRECIPITATION
ENERGY LEVELS
FOURIER TRANSFORM SPECTROMETERS
FOURIER TRANSFORMATION
FREQUENCY ANALYSIS
INFRARED SPECTRA
LIGHT EMITTING DIODES
MODIFICATIONS
OPTICAL PROPERTIES
PHOSPHORS
PHOTOLUMINESCENCE
SCANNING ELECTRON MICROSCOPY
SURFACES
VISIBLE RADIATION
ZINC COMPOUNDS
ZINC IONS