薄膜晶体管阵列四次光刻工艺中光刻胶灰化工艺的研究

光刻胶灰化是薄膜晶体管四次光刻工艺的核心工艺之一.初步研究了用纯O2对光刻胶进行灰化的工艺,影响光刻胶灰化的主要因素有功率、气压和灰化气体的流量,经过一组正交实验,得到了功率、气压、灰化气体的流量对光刻胶的灰化速率和均匀度的影响趋势.结果表明,功率是影响灰化速率的主要因素.通过不断地优化光刻胶的灰化条件,最终得到了理想的灰化条件,即功率为10500W,气压为26.7 Pa,O2的流量为2000mL/min,灰化时间为91s.     

透明导电薄膜ZnO:Al(ZAO)的性能及其在有机发光二极管中的应用

研究了ZAO透明导电薄膜的微观组织结构、化学成分及其电学光学特性.结果表明,多晶ZAO薄膜呈柱状晶并具有(002)面择优取向, c轴晶格常数大于0.52000 nm;ZAO薄膜不同微区之问的成分不均匀导致了电学性能的不均匀; ZAO薄膜的电阻率和在可见光区的平均透射率分别为1.39×10-4 Ω·cm和80.8％.其透射率和吸收率曲线均具有明显的波动性,该波动性影响以ZAO为阳极的有机发光二极管的发射光谱,在5.38 A/m2电流密度下二极管的发光效率大于2 cd/A.     

Organic Light Emitting Devices Based on Terbium Complex

Rare earth complex TbY(m-MOBA)6(phen)2·2H2O was synthesized,which was first used as an emitting material in electroluminescence.The properties of monolayer device with the rate of 1000 r·min-1 (70 nm) and the impure concentration of 1∶5 were the best.And the highest brightness of this device reached 21.8 cd·cm-2 at a fixed bias of 20 V.Bright green emission can be obtained from the optimized double-layer device,and the highest EL brightness of the device reached 289 cd·m-2 at the voltage of 21 V.     

Organic Light-Emitting Device Based on Terbium Complex

Organiclight emittingdevices(OLEDs)have beenattractingconsiderableinterestbecauseoftheir lowdrive voltage,potentialapplicationsinflatpanel displaysincethefirstdouble layerstructuredevice withhighefficiencyandluminancewasfabricatedby TangandVanSlykein1987[…     

厚度依赖的Poly(3-hexylthiophene)光伏器件中的磁场效应

对poly(3-hexylthiophene)(P3HT)光伏器件产生正、负向磁场效应的原因进行了研究。制作了不同活性层厚度的光伏器件,光电流的磁场效应对厚度的依赖非常明显:在活性层厚度为44nm时,有2.8%的正效应;当活性层厚度提高为105nm时,磁场效应变为负值(-5.2%)。为了研究产生这种效应的原因,制备了1-(3-methyloxycarbonyl)propyl-1-phenyl[6,6]C61(PCBM)与P3HT共混的器件。在共混器件中,磁场效应随着PCBM比例的提升而逐渐下降直至湮灭且磁场效应不再随活性层厚度发生变化。磁场效应的产生源于磁场可以调控单线态和三线态激子的比例,进而调节单线态激子主导的激子分离作用和三线态激子主导的激子-电荷分离作用。实验结果显示出在纯P3HT光伏器件中,当PCBM加入到活性层中时,大量激子在给受体界面处分离成为自由载流子,单线态和三线态激子都可以高效地通过激子分离使光电流增强,激子比例不再影响光电流大小,所以磁场效应逐渐消失且对活性层厚度失去依赖。     

Large matrix polymer solar cells fabricated by low cost air-brush spray deposition

In this paper, a 64 mm×64 mm matrix polymer solar cell (PSC) was fabricated by air-brush spray deposition. Although the open-circuit voltage (Voc) and the fill factor (FF) both need to be improved, the efficiency of matrix PSCs still reaches about 1.82%, and especially the current density achieves nearly 20 mA/cm2. The results verify that air-brush spray deposition is a suitable method to prepare large area PSC devices, and the process we use in this paper can be easily transplanted to roll-to-roll production.     

聚对苯乙炔发光二极管的研究

本文通过分析ＰＰＶ薄膜不同侧面的发光光谱和强度及ＰＰＶ薄膜制备过程对聚合程度的影响，得出ＰＰＶ薄膜的光致发光主要源于下层薄膜附近的区域；而二极管的电致发光区域主要集中在钙电极附近，并且随偏压的增加而向钙膜移动。同时还研究了Ａｌ膜在防止Ｃａ膜的氧化和提高二极管寿命方面的作用。     

高效率的白光有机电致发光器件

为了提高白光有机电致发光器件的发光效率和光谱稳定性,采用染料掺杂的方法,制备了多层结构白光有机电致发光器件。通过参数优化实现了非常好的白光发射,并表现出良好的光谱稳定性。器件的开启电压为5.1V,发光亮度达到10800cd／m^2,最大电流效率和功率效率分别是10.4cd／A和3.5lm／W。     

Electroluminescence Based on Eu_(0.5)La_(0.5)(TTA)_3phen Doped Poly N-Vinylcarbazole

Organic electroluminescence (OEL) has been ex-tensively studied owing to its potential application inflat panel displays ever since the first double-layerOELdevice that has high efficiency and luminescencewas fabricated in 1987[1 ~4]. When compared withcommon smaller organic molecules and polymers ,rareearth (RE) complexes exhibit extremely sharp , well-defined spectral lines due to the emissions that origi-nate fromthe lanthanide metal ions .So the electrolu-minescence (EL) of REcomplexes…     

聚乙二醇对PTB7：PC70BM太阳电池的影响

对以PTB7:PC_(70)BM为体系的聚合物太阳电池(BHJ)的阳极修饰层PEDOT:PSS中掺杂聚乙二醇(PEG)的方法进行研究,发现阳极修饰层中掺杂不同浓度的PEG后,器件的各项性能均有所提升。通过电流电压(I-V)测试、电容-电压(C-V)测试、外量子效率(EQE)测试、及不同浓度PEG下PEDOT:PSS的电导率的测量发现,在PEDOT:PSS中掺杂体积比为1%的PEG时,太阳电池器件的填充因子(FF)、短路电流(J_(sc))等有明显提升。其光电转换效率从5.88%升至6.48%,比基础器件提高10%。