The hydrogen/deuterium isotope effect of the host material on the lifetime of organic light-emitting diodes

The hydrogen/deuterium isotope effect of the host material on the lifetime of organic light-emitting diodes

The hydrogen/deuterium primary kinetic isotope effect provides useful information about the degradation mechanism of OLED host materials. Thus, replacement of labile C-H bonds in the host with C-D bonds increases the device lifetime by a factor of five without loss of efficiency, and replacement wit...

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Veröffentlicht in:Chemical communications (Cambridge, England) England), 2014-01, Vol.50 (94), p.14870-14872
Hauptverfasser: Tsuji, Hayato, Mitsui, Chikahiko, Nakamura, Eiichi
Format: Artikel
Sprache:eng
Schlagworte:
Carbon-carbon composites
Chemical bonds
Degradation
Deuterium
Devices
Isotope effect
Organic light emitting diodes
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Zusammenfassung:The hydrogen/deuterium primary kinetic isotope effect provides useful information about the degradation mechanism of OLED host materials. Thus, replacement of labile C-H bonds in the host with C-D bonds increases the device lifetime by a factor of five without loss of efficiency, and replacement with C-C bonds by a factor of 22.5.
ISSN:1359-7345
1364-548X
DOI:10.1039/c4cc05108d