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Organic electronic devices using phthalimide compounds

Patent ·
OSTI ID:1176488

Organic electronic devices comprising a phthalimide compound. The phthalimide compounds disclosed herein are electron transporters with large HOMO-LUMO gaps, high triplet energies, large reduction potentials, and/or thermal and chemical stability. As such, these phthalimide compounds are suitable for use in any of various organic electronic devices, such as OLEDs and solar cells. In an OLED, the phthalimide compounds may serve various functions, such as a host in the emissive layer, as a hole blocking material, or as an electron transport material. In a solar cell, the phthalimide compounds may serve various functions, such as an exciton blocking material. Various examples of phthalimide compounds which may be suitable for use in the present invention are disclosed.

Research Organization:
Univ. of Southern California, Los Angeles, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FG02-03ER83813
Assignee:
The University of Southern California (Los Angeles, CA)
Patent Number(s):
8,293,385
Application Number:
12/854,297
OSTI ID:
1176488
Country of Publication:
United States
Language:
English

References (6)

Photophysical processes in aromatic polyimides. Studies with model compounds journal October 1993
Luminescent properties of a novel naphthalimide-fluorene molecule journal April 2005
Electrochromic properties of novel strictly alternating poly(amine–amide–imide)s with electroactive triphenylamine moieties journal July 2006
1,8-Naphthalimides in Phosphorescent Organic LEDs:  The Interplay between Dopant, Exciplex, and Host Emission journal August 2002
Comprehensive Model of the Photophysics of N -Phenylnaphthalimides:  The Role of Solvent and Rotational Relaxation journal January 1996
Layered organic film growth by substrate temperature tuning for efficiency-enhanced OLEDs journal February 2006

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