题目：High Contrast OLEDs和Semitransparent Organic Solar Cells
时间：10月26日下午4：00
地点：基础教学楼A303
讲座一:High Contrast OLEDs
Abstract: This talk will discuss the progress in developing gradient refractive index anode for enhancing the visual contrast of OLED displays. The concept is based upon on using an anode with a gradient or graded refractive index to minimize the ambient light reflection from OLEDs and hence to enhance the visual contrast. For example, a bilayer anode consisting of a thin film of highly oxygen deficient indium tin oxide (ITO), and a normal ITO having a high work function anode in OLEDs for reducing ambient reflection. The highly oxygen deficient ITO film is electrically conducting and optically absorbing. The oxygen deficient ITO layer is inserted between the anode and the rigid or flexible transparent substrate serving as an optical destructive layer for reducing the ambient light reflection from the OLEDs. The gradient refractive index anode can be fabricated using ITO or a combination of other transparent conductive materials, enables to reduce sufficiently the ambient light reflection from mirror-like surface of the metallic cathode in OLEDs through light absorbing and optical destructive interference.
讲座二:Semitransparent Organic Solar Cells
Abstract: Compared to current silicon-based solar cells that are rigid, organic-based solar cells that use solution-based processing deposition techniques are simpler and potentially less expensive to manufacture. Organic photovoltaic cells can be made flexible, semitransparent and are light weight, offer more opportunities for application in new markets such as mobile electronics, disposable electronics, smart cards, power generating windows, smart sensors, automotive, home appliances and outdoor lifestyle etc. Its unique flexibility and semi-transparency feature also adds a decorative and aesthetic dimension to the solar cells so that it can be used on curved surface. After a brief overview of ITO-based transparent cathode, the enhancement of semitransparent organic solar cells over the two competing performance indices of power conversion efficiency and transmittance will be discussed. Our recent research progress in developing semitransparent organic solar cells will be presented.
朱福荣教授简介：
ZHU, Fu Rong, Ph.D.
香港浸会大学, 教授
澳大利亚查尔斯达尔文大学（Charles Darwin University, Australia）博士（1993）
复旦大学学士、硕士（1983和1987）
研究领域：薄膜物理和表面科学；电致发光和光电材料物理；氧化物半导体及应用。
