高性能聚合物光电池和光探测器

High Performance Polymer Photovoltaic Cells and Photodetectors

聚合物光电池和光探测器已经发展成为成熟的技术.聚合物光电池的能量转换效率已提高到超过4.1%(500nm,10mW/cm2).这些高效聚合物光电池,很有希望用于包括电子报,电子书和智能窗等在内的很多领域.聚合物光探测器发展更快,其性能参数已改进到能满足许多实际应用的要求.聚合物光探测器具有高光灵敏度(在可见光和紫外光范围约0.2～0.3A/W),低暗电流(0.1～1nA/cm2),大动态范围(＞8个数量级),线性电流光强关系,低噪声电平和快响应时间(ns量级).这些器件表现出很长的存贮寿命和工作寿命.由于聚合物光探测器生产成本低,检测面积大,以及易于与其它电、光器件组合和集成等优点,可适合化学/生物分析,全彩色数字图象信号检测和高能辐射测量等聚合物光探测器.

： Polymer photovoltaic cells and photodetectors have passed their infancy and become mature technologies. The energy conversion effciency of polymer photovoltaic cells have been improved to over 4.1％ (500nm, 10mW/cm2). Such high efficiency polymer photovoltaic cells are promising for many applications including e papers, e books and smart windows. The development of polymer photodetectors is even faster. The performance parameters have been improved to the level meet all specifications for practical applications. They are ready for product development. The polymer photodetectors are of high photosensitivity(～ 0.2～ 0.3A/W in visible and UV), low dark current (0.1～ 1 nA/cm2), large dynamic range(>8 orders of magnitude), linear intensity dependence, low noise level and fast response time (to nanosecond time domain). These devices show long shelf and operation lives. The advantages of low manufacturing cost, large detection area, and easy hybridization and integration with other electronic or optical components make the polymer photodetectors promising for a variety of applications including chemical/biomedical analysis, full_color digital image sensing and high energy radiation detection.