Circulene compounds of Formula I or Formula II, and organic light emitting devices (OLED) that include an organic layer disposed between an anode and a cathode, wherein the organic layer includes a compound of Formula I or Formula II. In addition, the OLED can be incorporated into one or more of a consumer product, for example, an electronic component module, and/or a lighting panel. ##STR00001##

The present invention includes novel compounds containing hexaphenyl borazine or azahexaphenyl borazine substituted with heterocycles or azaheterocycles were disclosed in this application. These compounds are useful as host materials for phosphorescent electroluminescent devices.

Provided are a novel compound and an organic electronic device using the same. The novel compound is represented by the following Formula (I): ##STR00001## wherein X.sup.1 and X.sup.2 are each independently C(R.sup.3), the two (R.sup.3)s are the same or different, and the two (R.sup.3)s are joined together to form a first aryl ring; X.sup.3 and X.sup.4 are each independently C(R.sup.b), the two (R.sup.b)s are the same or different, the two (R.sup.b)s are joined to form a second aryl ring, and the second aryl ring is a polycyclic aromatic ring.

Provided are a novel compound and an organic electronic device using the same. The novel compound is represented by the following Formula (I): ##STR00001## Wherein, a1 and a2 are each independently an integral from 0 to 4; the total of a1 and a2 is not less than 1; l1 and l2 are each independently an integral from 0 to 3; L.sup.1 and L.sup.2 are each independently a substituted or unsubstituted arylene group having 6 to 60 carbon atoms; b is an integral of 0 to 4; c is an integral of 0 to 2.

The present invention includes novel compounds containing deuterated or partially deuterated xanthene and thioxanthene structures. These compounds may be useful as host materials with high triplet energies for phosphorescent electroluminescent devices.

The present disclosure provides a photoelectric conversion element including a lower electrode, a photoelectric conversion layer, and an upper electrode in this order; a voltage is applied between the lower electrode and the upper electrode; the photoelectric conversion layer contains a first organic compound and a second organic compound; the first organic compound has a lower oxidation potential than the second organic compound, and ?E represented by the following formula (A) satisfies the following formula (B); where ?E=oxidation potential of first organic compound?reduction potential of second organic compound (A)
?E?1.79[V](B).

Provided are a novel compound and an organic electronic device using the same. The novel compound is represented by the following Formula (I): ##STR00001## wherein X.sup.1 and X.sup.2 are each independently C(R.sup.a), the two (R.sup.a)s are the same or different, and the two (R.sup.a)s are joined together to form an aryl ring; X.sup.3 and X.sup.4 are each independently C(R.sup.b), the two (R.sup.b)s are the same or different, and the two (R.sup.b)s are joined together to form a heteroaryl ring containing at least one furan group or at least one thiophene group.

Circulene compounds of Formula I or Formula II, and organic light emitting devices (OLED) that include an organic layer disposed between an anode and a cathode, wherein the organic layer includes a compound of Formula I or Formula II. In addition, the OLED can be incorporated into one or more of a consumer product, for example, an electronic component module, and/or a lighting panel.

##STR00001##

The invention relates to novel pure organic emitter molecules and optoelectronic devices containing these organic emitter molecules. According to the invention, in the optoelectronic device, after the excitation of an organic molecule, relaxation and intersystem crossing processes also result from the almost isoenergetic charge transfer triplet state (.sup.3CT) for the direct rapid occupation and emission of the charge transfer singlet state (.sup.1CT), so that a .sup.1CT.fwdarw.S.sub.0 fluorescence occurs without a thermal activation.

Tetraphenylene triarylamine compounds are disclosed, which are novel triarylamine compounds containing tetraphenylene building block. The compounds can be used as charge transporting materials, hole transporting materials, hole injection materials, electron blocking materials, etc., in an electroluminescent device. These novel compounds have good sublimation characters, and can offer more controllable charge transporting performance and good OLED device performance. Also disclosed are an organic electroluminescent device and a formulation.