NOVELTY - A compound comprising heteroleptic iridium complex with benzoimidazole and phenylpyridine ligands, is new.    USE - In first device such as consumer product, a lighting panel or organic light-emitting device (claimed); in opto-electronic devices such as organic phototransistors, organic photovoltaic cells, organic solar cells, organic devices such as organic transistors and organic photodetectors; in white light applications; in a wide variety of consumer products, including flat panel displays, computer monitors, televisions, billboards, lights for interior or exterior illumination and/or signaling, heads up displays, fully transparent displays, flexible displays, laser printers, telephones, cell phones, personal digital assistants (PDAs), laptop computers, digital cameras, camcorders, viewfinders, micro-displays, vehicles, a large area wall, theater or stadium screen, or a sign.    ADVANTAGE - The iridium complex improves OLED properties and hence is used in white light applications. The complex provides inexpensive material for OLED. The compounds have broad yellow emission profiles and hence are used for both display and lighting applications where white light is necessary. The compounds are readily sublimed enabling efficient purification and subsequent incorporation into OLEDs. The compound exhibits higher quantum efficiency and improved sublimation properties. The device incorporating the compound has broad yellow emission profiles, as well as high quantum efficiencies and long commercial life-times and hence is suitable for white illumination sources.    DETAILED DESCRIPTION - A compound comprising heteroleptic iridium complex with benzoimidazole and phenylpyridine ligands, of formula (I) is new.    R1, R2, R3, R4, R5 and R6=H, deuterium, halide, alkyl, cycloalkyl, heteroalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carbonyl, carboxylic acids, ester, nitrile, isonitrile, sulfanyl, sulfonyl and/or phosphine;    n=1 or 2.    The R1, R3, R4, R5 and R6 are mono-, di-, tri- or tetra-substitution and the R1, R3, R4, R5 and R6 are optionally fused to form ring that is optionally further substituted. An INDEPENDENT CLAIM is included for a first device comprising a first organic light emitting device, further comprising: an anode; a cathode; and an organic layer, disposed between the anode and the cathode, comprising the compound (I).