In situ purification of organic materials for organic light-emitting device fabrication

D. A. Pardo, Nasser N Peyghambarian, G. E. Jabbour

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The direct route to purify, as-deposited, materials for the fabrication of organic light emitting devices (OLED) was analyzed. The in situ purification of 8-tris-hydroxyquinoline aluminum (Alq3) was carried out by pouring the as-received Alq3 in the boron nitride (BN) crucible and capping it with a placed layer of glass wool. The material was heated using ramp and soak schemes at several temperature steps prior to deposition where green-yellow crystallites were observed to grow. The emitted optical power was measured by a calibrated silicon photodiode and converted to the number of photons per second for a specific wavelength.

Original languageEnglish (US)
Pages (from-to)4922-4923
Number of pages2
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume40
Issue number8
StatePublished - Aug 2001

Fingerprint

wool
pouring
crucibles
boron nitrides
organic materials
ramps
purification
crystallites
photodiodes
Purification
routes
aluminum
Fabrication
fabrication
Boron nitride
glass
Crucibles
photons
silicon
Photodiodes

Keywords

  • Impurity separation
  • Molecular
  • Organic light-emitting devices
  • Purification
  • Quantum efficiency

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

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abstract = "The direct route to purify, as-deposited, materials for the fabrication of organic light emitting devices (OLED) was analyzed. The in situ purification of 8-tris-hydroxyquinoline aluminum (Alq3) was carried out by pouring the as-received Alq3 in the boron nitride (BN) crucible and capping it with a placed layer of glass wool. The material was heated using ramp and soak schemes at several temperature steps prior to deposition where green-yellow crystallites were observed to grow. The emitted optical power was measured by a calibrated silicon photodiode and converted to the number of photons per second for a specific wavelength.",
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AU - Pardo, D. A.

AU - Peyghambarian, Nasser N

AU - Jabbour, G. E.

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N2 - The direct route to purify, as-deposited, materials for the fabrication of organic light emitting devices (OLED) was analyzed. The in situ purification of 8-tris-hydroxyquinoline aluminum (Alq3) was carried out by pouring the as-received Alq3 in the boron nitride (BN) crucible and capping it with a placed layer of glass wool. The material was heated using ramp and soak schemes at several temperature steps prior to deposition where green-yellow crystallites were observed to grow. The emitted optical power was measured by a calibrated silicon photodiode and converted to the number of photons per second for a specific wavelength.

AB - The direct route to purify, as-deposited, materials for the fabrication of organic light emitting devices (OLED) was analyzed. The in situ purification of 8-tris-hydroxyquinoline aluminum (Alq3) was carried out by pouring the as-received Alq3 in the boron nitride (BN) crucible and capping it with a placed layer of glass wool. The material was heated using ramp and soak schemes at several temperature steps prior to deposition where green-yellow crystallites were observed to grow. The emitted optical power was measured by a calibrated silicon photodiode and converted to the number of photons per second for a specific wavelength.

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KW - Molecular

KW - Organic light-emitting devices

KW - Purification

KW - Quantum efficiency

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