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发明公开
CN104638154A 有机电致发光器件及其制备方法 无效 - 撤回

有机电致发光器件及其制备方法
摘要：
一种有机电致发光器件，包括依次层叠的阳极、空穴注入层、空穴传输层、发光层、电子传输层、电子注入层及阴极，阴极层由有机电子传输材料层，铼的氧化物掺杂层和金属掺杂层组成，有机电子传输材料层材料的HOMO能级为-6.5eV～-7.5eV，玻璃化转变温度为50℃～100℃，铼的氧化物掺杂层包括铼的氧化物及掺杂在所述铼的氧化物中的钝化材料，所述铼的氧化物选自七氧化二铼、二氧化铼、三氧化铼和三氧化二铼中至少一种，所述钝化材料选自二氧化硅、氧化铝、氧化镍和氧化铜中至少一种，所述金属掺杂层包括金属及掺杂在所述金属中的锌的化合物，上述有机电致发光器件的发光效率较高。本发明还提供一种有机电致发光器件的制备方法。
摘要（英）：

An organic electroluminescent device comprises an anode, a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, an electron injection layer, and a cathode, all of which are sequentially stacked. The cathode layer is composed of an organic electron transport material layer, a rhenium oxide doped layer, and a metal doped layer. The HOMO energy level of the organic electron transport material is -6.5eV to -7.5eV, and the glass transition temperature is 50 DEG C to 100 DEG C. The rhenium oxide doped layer includes a rhenium oxide and a passivation material doped in the rhenium oxide, wherein the rhenium oxide includes at least one selected from rhenium heptoxide, rhenium dioxide, rhenium trioxide, and rhenium sesquioxide, and the passivation material includes at least one selected from silicon dioxide, aluminum oxide, nickel oxide, and copper oxide. The metal doped layer includes metal and a zinc compound doped in the metal. The organic electroluminescent device has high luminous efficiency. The invention further provides a method for preparing the organic electroluminescent device.

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