Optical and Chemical Properties of Alq3: PMMA Blended Thin Films

M. M. Duvenhage; O. M. Ntwaeaborwa; H. C. Swart

doi:10.1016/j.matpr.2015.08.031

Optical and Chemical Properties of Alq₃: PMMA Blended Thin Films

M. M. Duvenhage, O. M. Ntwaeaborwa, H. C. Swart

University of The Free State

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

Blended thin films of tris-(8-hydroxy-quinoline) aluminum (Alq₃) and a polymer like polymethyl methacrylate (PMMA) can lead to low cost manufacturing of organic light emitting diodes (OLED), while the polymer contains the optical properties of Alq₃ and the processability of the polymer is maintained. Polymethyl methacrylate (PMMA) was doped with different mol percentages of Alq₃ ranging from 0.5 - 5mol %. The photoluminescence (PL) of the films were recorded at an excitation wavelength of 355nm. The emission was characterized by broad spectra with a maximum at ~ 515nm, corresponding to the well-known green emission of Alq₃ in the solid state. The effects of Alq₃ concentration on the PL intensity and emission wavelength were investigated.X-ray photoelectron spectroscopy studies were done on commercial PMMA powder, PMMA thin films and Alq₃:PMMA thin films in order to get a better understanding of the chemical interactions between the Alq₃ molecule and the PMMA.

Original language	English
Pages (from-to)	4019-4027
Number of pages	9
Journal	Materials Today: Proceedings
Volume	2
Issue number	7
DOIs	https://doi.org/10.1016/j.matpr.2015.08.031
Publication status	Published - 2015
Externally published	Yes

Keywords

Alq
PMMA
Photoluminescence
XPS

ASJC Scopus subject areas

General Materials Science

Access to Document

10.1016/j.matpr.2015.08.031

Cite this

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title = "Optical and Chemical Properties of Alq3: PMMA Blended Thin Films",

abstract = "Blended thin films of tris-(8-hydroxy-quinoline) aluminum (Alq3) and a polymer like polymethyl methacrylate (PMMA) can lead to low cost manufacturing of organic light emitting diodes (OLED), while the polymer contains the optical properties of Alq3 and the processability of the polymer is maintained. Polymethyl methacrylate (PMMA) was doped with different mol percentages of Alq3 ranging from 0.5 - 5mol %. The photoluminescence (PL) of the films were recorded at an excitation wavelength of 355nm. The emission was characterized by broad spectra with a maximum at ~ 515nm, corresponding to the well-known green emission of Alq3 in the solid state. The effects of Alq3 concentration on the PL intensity and emission wavelength were investigated.X-ray photoelectron spectroscopy studies were done on commercial PMMA powder, PMMA thin films and Alq3:PMMA thin films in order to get a better understanding of the chemical interactions between the Alq3 molecule and the PMMA.",

keywords = "Alq, PMMA, Photoluminescence, XPS",

author = "Duvenhage, {M. M.} and Ntwaeaborwa, {O. M.} and Swart, {H. C.}",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier Ltd.",

year = "2015",

doi = "10.1016/j.matpr.2015.08.031",

language = "English",

volume = "2",

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journal = "Materials Today: Proceedings",

issn = "2214-7853",

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T1 - Optical and Chemical Properties of Alq3

T2 - PMMA Blended Thin Films

AU - Duvenhage, M. M.

AU - Ntwaeaborwa, O. M.

AU - Swart, H. C.

PY - 2015

Y1 - 2015

N2 - Blended thin films of tris-(8-hydroxy-quinoline) aluminum (Alq3) and a polymer like polymethyl methacrylate (PMMA) can lead to low cost manufacturing of organic light emitting diodes (OLED), while the polymer contains the optical properties of Alq3 and the processability of the polymer is maintained. Polymethyl methacrylate (PMMA) was doped with different mol percentages of Alq3 ranging from 0.5 - 5mol %. The photoluminescence (PL) of the films were recorded at an excitation wavelength of 355nm. The emission was characterized by broad spectra with a maximum at ~ 515nm, corresponding to the well-known green emission of Alq3 in the solid state. The effects of Alq3 concentration on the PL intensity and emission wavelength were investigated.X-ray photoelectron spectroscopy studies were done on commercial PMMA powder, PMMA thin films and Alq3:PMMA thin films in order to get a better understanding of the chemical interactions between the Alq3 molecule and the PMMA.

AB - Blended thin films of tris-(8-hydroxy-quinoline) aluminum (Alq3) and a polymer like polymethyl methacrylate (PMMA) can lead to low cost manufacturing of organic light emitting diodes (OLED), while the polymer contains the optical properties of Alq3 and the processability of the polymer is maintained. Polymethyl methacrylate (PMMA) was doped with different mol percentages of Alq3 ranging from 0.5 - 5mol %. The photoluminescence (PL) of the films were recorded at an excitation wavelength of 355nm. The emission was characterized by broad spectra with a maximum at ~ 515nm, corresponding to the well-known green emission of Alq3 in the solid state. The effects of Alq3 concentration on the PL intensity and emission wavelength were investigated.X-ray photoelectron spectroscopy studies were done on commercial PMMA powder, PMMA thin films and Alq3:PMMA thin films in order to get a better understanding of the chemical interactions between the Alq3 molecule and the PMMA.

KW - Alq

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KW - Photoluminescence

KW - XPS

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