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电致发光器件

电致发光器件的相关文献在1978年到2023年内共计8893篇,主要集中在无线电电子学、电信技术、化学、物理学 等领域,其中期刊论文209篇、会议论文51篇、专利文献298695篇;相关期刊84种,包括材料导报、功能材料、光电技术等; 相关会议31种,包括2011年全国硅基光电子材料及器件研讨会、2010中国平板显示学术会议、第十六届全国化合物半导体材料、微波器件和光电器件学术会议等;电致发光器件的相关文献由5177位作者贡献,包括王平、周明杰、黄辉等。

电致发光器件—发文量

期刊论文>

论文:209 占比:0.07%

会议论文>

论文:51 占比:0.02%

专利文献>

论文:298695 占比:99.91%

总计:298955篇

电致发光器件—发文趋势图

电致发光器件

-研究学者

  • 王平
  • 周明杰
  • 黄辉
  • 张振华
  • 钟铁涛
  • 陈吉星
  • 张娟娟
  • 李崇
  • 冯小明
  • 张兆超
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 刘威; 李竹新; 王俊洁; 石增良
    • 摘要: 采用水热法制备了Er^(3+)掺杂的ZnO纳米棒阵列,通过场发射扫描电镜、X单晶衍射谱仪、透射电镜、微区显微光谱仪等对其形貌结构和发光性能进行了表征。结果表明,掺杂前后ZnO纳米棒的形貌及晶型结构未发生改变,Er^(3+)被均匀地掺杂至ZnO纳米棒中,并未发现形成Er_(2)O_(3);掺杂Er^(3+)后样品的光致发光光谱显示400 nm左右蓝光部分占比先提高后减少,其可见光占比减少归因于Er^(3+)填补了一部分锌空位缺陷,同时抑制了一部分氧空位缺陷。结合荧光寿命光谱分析也可发现其辐射发光部分寿命延长,表明荧光辐射效率提高。最终选取掺杂浓度为30%的单根ZnO纳米棒制备ZnO/GaN异质结发光二极管,与未掺杂Er^(3+)的样品相比,其电致发光强度提高了5倍。本研究可为ZnO基电致发光器件的性能改善提供一种简便可行的方法。
    • 刘威; 李竹新; 王俊洁; 石增良
    • 摘要: 采用水热法制备了Er3+掺杂的ZnO纳米棒阵列,通过场发射扫描电镜、X单晶衍射谱仪、透射电镜、微区显微光谱仪等对其形貌结构和发光性能进行了表征.结果表明,掺杂前后ZnO纳米棒的形貌及晶型结构未发生改变,Er3+被均匀地掺杂至ZnO纳米棒中,并未发现形成Er2 O3;掺杂Er3+后样品的光致发光光谱显示400 nm左右蓝光部分占比先提高后减少,其可见光占比减少归因于Er3+填补了一部分锌空位缺陷,同时抑制了一部分氧空位缺陷.结合荧光寿命光谱分析也可发现其辐射发光部分寿命延长,表明荧光辐射效率提高.最终选取掺杂浓度为30%的单根ZnO纳米棒制备ZnO/GaN异质结发光二极管,与未掺杂Er3+的样品相比,其电致发光强度提高了5倍.本研究可为ZnO基电致发光器件的性能改善提供一种简便可行的方法.
    • 刘士浩; 张祥; 张乐天; 谢文法
    • 摘要: 采用核壳结构的绿光CdSSe/ZnS量子点成功制备了顶发射绿光量子点器件,并详细研究了它的光电特性.与具有相同结构的底发射器件相比,顶发射器件在亮度、效率、色纯度、光谱的电压稳定性上都得到了显著提高.在相同电压7V下,尽管底发射具有更大的电流密度,但亮度仅为831 cd/m2,而顶发射器件的亮度则可达到1 350 cd/m2,并且顶发射器件的最高亮度可达到7 112 cd/m2.在效率上,顶发射器件的最大电流效率可达6.54 cd/A,远大于底发射器件的1.89 cd/A.在光谱方面,在底发射器件中出现的红蓝部分的杂光在顶发射器件中完全被抑制,而且顶发射光谱的半高宽显著窄化,具有更高的色纯度.当电压从4V变化到9V时,顶发射器件光谱始终保持稳定,色坐标移动仅为(-0.005,-0.001).结果表明,顶发射结构有利于提高量子点器件的亮度、效率、色纯度以及光谱的电压稳定性.%Green top emitting OLEDs were fabricated by using green CdSSe/ZnS quantum dots with core-shell structure.The photoelectric properties of the devices were studied in detail.Compared to the bottom emitting device with the similar structure,the top emitting device was significantly improved in brightness,efficiency,color purity,and voltage stability of the spectrum.Under the same voltage of 7 V,although the bottom emitting device has greater current density,the brightness is only 831 cd/m2,while the brightness of the top emitting device can reach 1 350 cd/m2,and the highest brightness can reach 7 112 cd/m2.In efficiency,the maximum current efficiency of the top emitting device can reach 6.54 cd/A,which is far greater than 1.89 cd/A of the bottom emitting device.In terms of spectrum,the red and blue parts of the bottom emitting devices are completely suppressed in the top emitting devices,and the half height width of the top emission spectrum is significantly narrowed with higher color purity.When the voltage varies from 4 V to 9 V,the spectrum of the top emitting device remains stable,and the color coordinates move only (-0.005,-0.001).The results show that the top emission structure is beneficial to improve the luminance,efficiency,color purity and voltage stability of the quantum dots.
    • 周婷
    • 摘要: 本文探讨了在有机电致发光器件(OLED)的空穴传输层材料NPB中掺杂无机材料Se后对器件特性的影响。实验显示当NPB与Se的掺杂比例为3:2时,器件的电学性能最好。同时与空穴传输层NPB未掺杂的器件对比,掺杂Se后的电致发光器件在同一电压下的电流更大,通过软件拟合算出在掺杂Se后零电场下器件载流子的迁移率由2.03×10-7cm2/V·s提高到8.31×10-6cm2/V·s,增大了40倍。在外加电压3V时,器件载流子迁移率由2.77×10-5cm2/V·s提高到1.99×10-4cm2/V·s,因此Se的掺杂能够提高OLED载流子的迁移率。然而在器件亮度方面,在掺杂Se后,发现在同一电压下器件的发光亮度明显降低,经测试发现这是因为Se的颜色较深导致掺杂层颜色较深,导致发射层发射出的光子有部分由掺杂层吸收,因而器件发射出来的光子减少。
    • 刘萍; 曾葆青; 王亚雄; 汪江浩
    • 摘要: The merits of transparent conductive thin films (TCF) based on nanowires include excellent optoelectrical properties, low-cost manufacturing, and applicability for flexible device fabrication.The preparation, patterning and application in optoelectronic devices are introduced for nanowire transparent conductive thin films (NTCF) in this paper, including seven preparation me-thods-drop coating, dip coating, vacuum filtration, Meyer rod coating, spin coating, spray coating and printing, and two applied fields-solar cells and light emitting diodes.In varieties of NTCFs, preparation techniques of silver NTCF and copper NTCF have gained continuous perfection in recent years, so they provoke wide concern and are expected to have a breakthrough in industrial application.%基于纳米线的透明导电薄膜具有光电性能优异、制备成本低廉以及可用于制备柔性器件等优点,在透明导电薄膜材料领域占据重要地位.文章着眼于阐述纳米线透明导电薄膜的制备及其在光电器件中的应用.首先详细介绍了滴涂、浸渍、抽滤、迈耶棒涂布、旋涂、喷印、印刷等7种制备纳米线透明导电薄膜的方法.光电器件是应用透明导电薄膜的重要领域,文章还介绍了纳米线透明导电薄膜在太阳能电池和电致发光器件中的应用.纳米线透明导电薄膜中,银纳米线和铜纳米线透明导电薄膜最受关注,其制备工艺日趋完善,有望率先在工业应用中取得突破.
    • 摘要: 华南理工大学发光材料与器件国家重点实验室彭俊彪教授研究团队联合广州新视界光电科技有限公司研究开发了发光量子点墨水研制方法和电致发光显示屏结构设计,解决了溶液加工型多层电致发光器件结构设计、界面互溶等科学问题,突破了新材料体系的氧化物TFT基板制备技术、表面特性调控技术、溶液法制备量子点薄膜技术、薄膜封装技术等。
    • 赵丹; 徐登辉; 杨在发; 曹伟强
    • 摘要: 采用旋涂法对PEDOT:PSS薄膜进行了酸处理,研究了不同方法处理PEDOT:PSS薄膜对器件ITO/酸处理PEDOT:PSS/NPB/Alq3/LiF/Al性能的影响.实验结果表明:用盐酸(草酸)处理PEDOT:PSS薄膜时,以0.75 mol/L的盐酸(草酸)在120°C下退火15 min时性能更好,最大电流效率达到4.28 cd/A.并且盐酸、草酸处理PEDOT:PSS薄膜制备器件比未处理PEDOT:PSS薄膜制备器件的电流效率明显提高了34%.
    • 孙静; 董海亮; 王华; 苗艳勤; 许慧侠; 李洁; 武钰铃; 许并社
    • 摘要: A kind of self-host blue-green phosphorescent Ir ( Ⅲ) complexes [( CzPhBI) 2 Ir ( tfmptz), (CzPhBI) 2 Ir(tfmpptz) and (CzPhBI) 2 Ir( fpptz)] was designed and synthesized. CzPhBI, tfmptz, tfmpptz and fpptz were 9-[6-(2-phenyl-1-benzimidazolyl) hexyl]-9-carbazole, 2-(5-trifluoromethyl-1,2,4-triazolyl) pyridine, 2-[ 5-( 4-trifluoromethyl) phenyl-1, 2, 4-triazolyl] pyridine and 2-[ 5-( 4-fluoro) phenyl-1, 2, 4-triazolyl]pyridine, respectively. The structures were confirmed by nuclear magnetic resonance( 1 H NMR and 19 F NMR) and elemental analysis. Photophysical properties were investigated. Electroluminescent performance of Ir(Ⅲ) complexes were characterized by fabricating the non-doped devices with the configura-tion of indium tin oxid(ITO)|N,N'-bis-(1-naphthalenyl)-N,N'-bis-phenyl-(1,1'-biphenyl)-4,4'-diamine (NPB)(30 nm)|4,4'-Bis(9-carbazolyl)-1,1'-biphenyl(CBP)(15 nm)|Ir complexes(30 nm)|1,3,5-tris (1-phenyl-1H-benzo[d]imidazol-2-yl)benzene(TBPI) (30 nm)|LiF(1 nm)|Al(100 nm). The maximum luminance of ( CzPhBI) 2 Ir ( tfmpptz) complexes was 6913 cd / m2 and the maximum luminous efficiency achieved 13. 9 cd / A.%合成了一类自主体蓝绿色磷光铱(Ⅲ)配合物( CzPhBI)2 Ir ( tfmptz),( CzPhBI)2 Ir ( tfmpptz)和(CzPhBI)2 Ir(fpptz)[其中 CzPhBI, tfmptz, tfmpptz 和 fpptz 分别为9-[6-(2-苯基-1-苯并咪唑基)己基]-9-咔唑、2-(5-三氟甲基-1,2,4-三唑基)吡啶、2-(5-[4-(三氟甲基)苯基]-1,2,3-三唑)吡啶和2-[5-(4-氟苯基)-1,2,3-三唑]吡啶].通过核磁共振氢谱和氟谱及元素分析确定其分子结构,并对其光物理性能进行了研究.利用该类配合物作为单发光层制备了器件结构为氧化铟锡(ITO)|N,N'-二苯基-N,N'-二(1-萘基)-1,1'-联苯-4,4'-二胺(NPB)(30 nm)|4,4'-N,N'-二咔唑基联苯(CBP)(15 nm)|Ir 配合物(30 nm)|1,3,5-三(1-苯基-1H-苯并咪唑-2-基)苯(TBPI)(30 nm)|LiF(1 nm)|Al(100 nm)的电致发光器件,其最大亮度为6913 cd/ m2,最大发光效率达13.9 cd/ A.
    • 汤胤旻; 霍延平; 胡升; 张焜; 赵丰华; 欧阳新华
    • 摘要: 设计合成了含噻吩基的新型配体(E)-2-[2-(3-噻吩基)乙烯基]-8-羟基喹啉(4)及相应的锌配合物5,产物结构经核磁共振、红外光谱和元素分析进行表征.利用X射线单晶衍射仪测定了中间体(E)-2-[2-(3-噻吩基)乙烯基]-8-乙酰氧基喹啉(3)和配体4的单晶结构,结果表明中间体3晶体分子间并无明显的氢键作用,分子间呈交错堆叠;配体4分子之间由硫氢氧键弱作用相互排列形成网状结构.通过核磁滴定及紫外和荧光滴定模拟了配体4在溶液中与金属锌的配位过程.固体荧光寿命研究结果表明,配合物5的荧光寿命为18.8 ms.通过电致发光器件研究发现,配合物5作为发光层具有良好的电致发光性能,同时具有较好的电子传输能力.%8-Hydroxyquinoline has long been employed as analytical and separating agents due to its universal chelating ability offered by the heterocyclic N and phenolate O atoms and fiuorescent property possessed by the conjugate system. In order to increase its fluorescence capability and conjugate system, 3-thiophene has been added. A novel 8-hydroxyquinoline derivative ligand containing thiophene group ( E )-2-[ 2-( 3-thiophenyl ) ethenyl]-8-hydroxyquinoline(4) and its corresponding zinc complex(5) were synthesized and identified via 1 H NMR, FTIR, UV-Vis, X-ray structural analysis and elemental analyses. The crystal structures of interme-diate (E)-2-[2-(3-thiophenyl) ethenyl]-8-acetoxyquinoline(3) and ligand 4 were characterized by single-crystal X-ray diffraction. X-Ray structural analysis showed that there was no obvious hydrogen-bonding interac-tion between the molecules of compound 3 . The crystal reticular structure of compound 4 was constructed as a result of intermolecular O-H…S hydrogen bonds. The aggregation behaviors of zinc salts and compound 4 in solutions were investigated with a variety of techniques, including 1 H NMR, UV-Vis and fluorescence. The fluorescence lifetime of complex 5 was determined in the solid state and its τ value is 18.8 ms. Organic light-emitting diodes built using complex 5 emitted yellow light, in which the 1,3,5-tris(1-phenyl-1H-benzimidazol-2-yl)benzene(TPBi) acts as the electronic transmission layer, while N,N’-bis-(1-naphthalenyl)-N,N’-bis-phenyl-(1,1’-biphenyl)-4,4’-diamine(NPB) acts as hole transport material.
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