Polymer Light-Emitting Electrochemical Cells: A New Direction for Electroluminescent Devices Fabricated with Conducting Polymers

聚合物发光电化学电池：导电聚合物电致发光器件的新方向

• 批准号: 9528204
• 负责人: Alan Heeger
• 金额: $ 22.5万
• 依托单位: University of California-Santa Barbara
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-09-01 至 1999-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9528204&HistoricalAwards=false
• 关键词: Polymer; Light; Emitting; Electrochemical; Cells

9528204 Heeger In light-emitting electrochemical cells, a p-n junction diode is created in-situ through simultaneous p-type and e-type electrochemical doping on opposite sides, respectively, of a thin film of conjugated polymer which contains added electrolyte to provide the necessary counterions for doping. Light-emitting devices based on conjugated polymers have been fabricated which operate by the proposed electrochemical oxidation reduction mechanism. Blue, green, and orange emission have been obtained with turn-on voltage close to the bandgap of the emissive material. This proposal outlines a focused program of basic scientific research on the chemistry, electrochemistry, physics and device physics of Polymer Light-Emitting Electrochemical Cells. The proposed research will probe the p-n junction created in-situ with the goal of determining the width and profile of the junction as a function of applied voltage; the proposed research will characterize the electrical properties of the p-n junction created in-situ (using current vs voltage and capacitance vs voltage measurements); and, finally, the proposed research will investigate the stability of the p-n junctions created in-situ. ***

在发光电化学电池中，通过分别在共轭聚合物薄膜的相对侧上同时进行p型和e型电化学掺杂，原位产生p-n结二极管，所述共轭聚合物薄膜含有添加的电解质以提供掺杂所需的抗衡离子。 基于共轭聚合物的发光器件已经被制造出来，其工作原理是电化学氧化还原机理。在接近发光材料带隙的开启电压下，获得了蓝色、绿色和橙子发光。该提案概述了聚合物发光电化学电池的化学、电化学、物理学和器件物理学的基础科研的重点计划。拟议的研究将探测原位生成的p-n结，目的是确定结的宽度和轮廓作为施加电压的函数;拟议的研究将表征原位生成的p-n结的电学特性（使用电流对电压和电容对电压测量）;最后，所提出的研究将调查原位产生的p-n结的稳定性。 ***