树脂对茶多酚与咖啡因的吸附分离

从低档绿茶末的水提取液中，利用离子交换，吸附树脂成功地分离出茶多酚与咖啡因，并详细考察了其交换与吸附性能。与其它方法相比，该树脂法具有产品收率高，成本低廉等特点。     

柔性衬底白色有机电致发光器件的制备及其性能

采用以ITO为导电层的柔性透明PET基片作为衬底,以2-(2-羟基苯基)苯并噻唑螯合锌(Zn(BTZ),)作为发光层制备出结构为PET／ITO／PVK：TPD／Zn(BTZ)2／Al明亮的近白色柔性有机小分子电致发光器件。发光的色坐标值为x=0．242,y=0．359,在25V的直流电压驱动下,亮度为1000cd／m^2,量子效率达到了0．30％。并进一步在Zn(BTZ)2中掺入橙红色染料Rubrene,制成PET／ITO／PVK：TPD／Zn(BTZ)2：Rubrene／Al结构器件。实现了纯白色发光(色坐标值：x=0．339,y=0．339),非常接近于白色等能点,驱动电压为25V时器件的亮度达1200cd／m^2,且量子效率达0．35％。最后对器件的发光性能及机理进行了深入的研究和探讨。     

含二唑的聚(间亚苯乙烯)电致发光二极管

含二唑的聚（间亚苯乙烯）电致发光二极管印寿根李晨曦黄文强何炳林（南开大学吸附分离功能高分子材料国家重点实验室高分子化学研究所天津３０００７１）彭俊彪刘星元李文连（中国科学院长春物理研究所长春１３００２１）关键词电致发光，光电子能谱，聚（间亚苯...     

Tandem white organic light-emitting diodes adopting a C60：rubrene charge generation layerTandem white organic light-emitting diodes adopting a C60：rubrene charge generation layer

Organic bulk heterojunction fullerence （C60） doped 5, 6, 11, 12-tetraphenylnaphthacene （rubrene） as the high quality charge generation layer （CGL） with high transparency and superior charge generating capability for tandem organic light emitting diodes （OLEDs） is developed. This CGL shows excellent optical transparency about 90%, which can reduce the optical interference effect formed in tandem OLEDs. There is a stable white light emission including 468 nm and 500 nm peaks from the blue emitting layer and 620 nm peak from the red emitting layer in tandem white OLEDs. A high efficiency of about 17.4 cd/A and CIE coordinates of （0.40, 0.35） at 100 cd/m2 and （0.36, 0.34） at 1000 cd/m2 have been demonstrated by employing the developed CGL, respectively.     

Manipulating vortices in F=2 Bose-Einstein condensates through magnetic field and spin-orbit coupling

We investigate the vortex structures excited by Ioffe-Pritchard magnetic field and Dresselhaus-type spin-orbit coupling in F=2 ferromagnetic Bose-Einstein condensates. In the weakly interatomic interacting regime, an external magnetic field can generate a polar-core vortex in which the canonical particle current is zero. With the combined effect of spin-orbit coupling and magnetic field, the ground state experiences a transition from polar-core vortex to Mermin-Ho vortex, in which the canonical particle current is anticlockwise. For fixed spin-orbit coupling strengths, the evolution of phase winding, magnetization, and degree of phase separation with magnetic field are studied. Additionally, with further increasing spin-orbit coupling strength, the condensate exhibits symmetrical density domains separated by radial vortex arrays. Our work paves the way to explore exotic topological excitations in high-spin systems.     

Synthesis and electroluminescent properties of naphthalimide derivatives

Naphthalimide derivatives, N-ethyl-4-acetylamino-l ,8-naphthalimide (EAAN) and polymer with N-propyl-4-acetylamino-l,8-naphthalimide (PAAN) side-chain (P-PAAN) were successfully synthesized. Electroluminescent devices of ITO/PVK(120nm)/EAAN(50nm)/Al(150nm) (Ⅰ) and ITO/PVK P-PAAN( 10:1) (50nm)/Al(150nm) (Ⅱ) constructed with EAAN and P-PAAN as the emitting layer were investigated, whereas the single-layer devices of ITO/EAAN or P-PAAN(50nm)/Al(l50nm) (Ⅲ) were not observed to have any e-mission light. The emission results revealed that the exciton recombination formed by positive and negative charge carriers injected from electrodes of devices Ⅰ and Ⅱ was much more balanced than that of devices Ⅲ, which implied that naphthalimide derivatives are a new type of electron-transporting materials with high performance. The electron-transporting properties of naphthalimide derivatives were also elucidated by investigation of the electroluminescent behaviors from both devices of ITO/PPV (80nm)/Al and ITO/P     

主链含电子传输型基团的可溶性PPV发光特性研究

经由Ｗｉｔｉｇ－Ｈｏｒｎｅｒ反应合成了一种可溶的ＰＰＶ主链含有电子传输基团的新型结构电子聚合物。该低聚物的Ｍｗ＝１０００、Ｔｄ＝２７０℃,可溶于氯仿和四氢呋喃。构造了最简单的三明治式电致发光器件ＩＴＯ／Ｏ－ＰＰＶ（８０ｎｍ）／Ａｌ,其电致发光和光致发光光谱基本一致。该器件与同样结构的ＰＰＶ相比其ＥＬ表现出在５０９ｎｍ处单一的宽峰,而ＰＰＶ的器件为５２０ｎｍ和５５０ｎｍ的双峰。另外由于主链上含有电子传输特性的二唑基团及聚合物材料的分子量较小,器件的量子效率达到０．１３％,是同样结构器件ＰＰＶ量子效率的五倍     

聚芳醚非共轭性电致发光材料与器件

由单体Ma[2,5-二(2-乙基-己氧基)-1,4-双-{2,2-[5-(对-氟代苯基)]-1,3,4-噁二唑基}苯]分别与三组分单体(双酚A、砜代双酚A或混合的双酚A)在N,N-二甲基乙酰胺／甲苯／碳酸钾的催化下于165℃进行亲核取代聚合反应得到淡黄色的固体,进一步纯化后得到含噁二唑杂环的聚芳醚型非共轭的新型有机电致发光材料PE1、PE2、PE3。引入双侧链取代基增强了该类材料的溶解性能,通过控制反应条件及调节聚合温度获得了高收率的聚合产物。分别测得其化学物理性能,制备了聚合物PE1、PE2、PE3的简单结构器件(ITO／polymer／Ca／Ag),首次获得了该类材料单层器件的蓝色有机电致发光,且该类材料具有较优良的热稳定性。     

基于垂直结构的有机光发射晶体管制备与性能研究

制备了一种有机垂直光发射晶体管, 兼具有机发光二极管的发光和晶体管的开关调节两个功能.其结构为一个有机发光单元垂直堆叠在一个电容单元上,两单元通过一个共有的源电极连在一起.当电容单元被充电时,积累在源电极的电荷能有效地调节源极与有机层之间的载流子注入势垒,从而达到控制源漏输出电流的大小,最终控制发光单元发光的强度.实验结果表明,器件可提供02 mA的输出电流,其大小可驱动发光单元发光,工作电压（开启电压）为6 V.这种垂直集成方案,实现了器件多功能化,为有机发光二极管有源矩阵驱动的实际应用提供了一种新的解决方法.     

利用阴极修饰层提高有机光伏电池的性能及稳定性

分别制备了以苯甲酸锂、碳酸铯和聚氧化乙烯为阴极修饰层的基于P3HT∶PCBM体系的本体异质结有机光伏电池。比较了3种阴极修饰层对器件性能及稳定性的影响。结果表明:选择合适的阴极修饰层材料是提高光电转换效率、延长电池使用寿命的可行性途径之一。纯无机阴极修饰层不能有效地阻挡氧气和水进入活性层,对于减缓器件的性能衰退效果不如有机阴极修饰层材料。有机聚合物材料可以减小漏电流的产生,开路电压和填充因子都得到很大提高,有利于提高器件的性能及稳定性。合成可溶液加工的具有极性基团的共轭聚合物材料是未来阴极修饰层的发展方向。