CAJ | 학술논문

以半透明超薄金属银作为阴极,紫外臭氧处理的厚金属银作为阳极,制备了高效率高亮度的黄光硅基顶发射有机发光器件。当电压为9 V 时,器件的最大电流效率为4.9 cd/A,当电压为17 V 时,器件的亮度达到14040 cd/m2。通过增加掺杂浓度及阳极厚度对器件结构进一步优化后,器件性能显著提高,其电流效率在外加电压为10 V 时达到11 cd/A,相应亮度为21748 cd/m2.顶发射器件中存在的微腔效应能有效提高器件的发光效率以及亮度,但是也会使器件的共振波长随着观察视角的增大而蓝移。由于采用合适的发光材料,本实验制备的器件的发光峰值在0°~75°视角范围内几乎没有变化。
이반투명초박금속은작위음겁,자외취양처리적후금속은작위양겁,제비료고효솔고량도적황광규기정발사유궤발광기건。당전압위9 V 시,기건적최대전류효솔위4.9 cd/A,당전압위17 V 시,기건적량도체도14040 cd/m2。통과증가참잡농도급양겁후도대기건결구진일보우화후,기건성능현저제고,기전류효솔재외가전압위10 V 시체도11 cd/A,상응량도위21748 cd/m2.정발사기건중존재적미강효응능유효제고기건적발광효솔이급량도,단시야회사기건적공진파장수착관찰시각적증대이람이。유우채용합괄적발광재료,본실험제비적기건적발광봉치재0°~75°시각범위내궤호몰유변화。
Adopting semi-transparent thin silver as cathode and UV-ozone surfaced-modified thick sil-ver as anode,top-emitting organic light-emitting device (TEOLED)on silicon substrate with high lu-minance and efficiency was fabricated.The maximum current efficiency was 4.9 cd/A when the volt-age was 9 V and the luminance reaches 14 040 cd/m2 at 17 V.The device structure is further opti-mized by increasing the doping concentration and the anode thickness.By optimizing the device struc-ture,a TEOLED with high current efficiency (1 1 cd/A at 10 V with luminance of 21 748 cd/m2 )had been reported.Due to the microcavity effect,the efficiency and luminance of TEOLED are relatively high,but the blue-shift of the resonant wavelength (RW)with increasing view angles is obvious.By employing the suitable emitting material,the blue-shift of the RW is nearly negligible in our device when the viewing angles moved from 0°to 75°.