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Polymer/organic electronic and opto-electronic devices.

机译：聚合物/有机电子和光电设备。

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摘要

This dissertation presents two important research projects on the organic/polymeric opto-electronic and electronic devices. The first part is a systematic study on the correlation between optical/electrical characteristics of polymer light emitting diodes and the polymer thin film morphology. Our results indicate that both optical and electrical properties of polymer devices, fabricated by the spin-coating process, are strongly dependent on polymer morphologies. In addition, it is also demonstrated that the morphology of polymers can be tailored by controlling fabrication parameters, such as concentrations of polymer solutions, spin-cast speeds, solvents as well as post-annealing temperatures. Furthermore, based on these understandings of morphology vs. device performance, highly efficient PLEDs have been demonstrated by optimizing polymer morphologies through the control of fabrication parameters or forming polymer solid solutions (blends).; The second part is the research on a novel organic electronic memory cell: the organic bistable device. When constructed appropriately, organic device show electrical bistable phenomena, i.e. depends on the bias history, an individual device can posses either a high impedance state or a low impedance state. Unique device characteristics of the organic bistable devices, such as nano-second transition time, writing-erasing capability, and superior stability, make this type of devices a promising candidate as new generation organic memory cells.
机译：本论文提出了两个重要的有机/高分子光电和电子器件研究项目。第一部分是对聚合物发光二极管的光电特性与聚合物薄膜形态之间相关性的系统研究。我们的结果表明，通过旋涂工艺制造的聚合物器件的光学和电学特性都强烈取决于聚合物的形态。另外，还证明了可以通过控制制造参数，例如聚合物溶液的浓度，旋转浇铸速度，溶剂以及后退火温度来定制聚合物的形态。此外，基于对形态与器件性能的这些了解，通过控制制造参数或形成聚合物固溶体（共混物）来优化聚合物形态，从而证明了高效的PLED。第二部分是对新型有机电子存储单元：有机双稳态器件的研究。当适当构造时，有机装置显示出电双稳态现象，即。取决于偏置历史，单个设备可以具有高阻抗状态或低阻抗状态。有机双稳态器件的独特器件特性（例如纳秒级转换时间，擦除擦除能力和出色的稳定性）使此类器件成为新一代有机存储单元的有希望的候选者。

著录项

  • 作者

    Liu, Jie.;

  • 作者单位

    University of California, Los Angeles.;

  • 授予单位 University of California, Los Angeles.;
  • 学科 Engineering Materials Science.; Engineering Electronics and Electrical.
  • 学位 Ph.D.
  • 年度 2001
  • 页码 162 p.
  • 总页数 162
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 工程材料学;无线电电子学、电信技术;
  • 关键词

  • 入库时间 2022-08-17 11:46:48

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