Monochromator for wavelength-dependent solar cell chracterization

用于波长相关太阳能电池表征的单色仪

• 批准号: 344893-2007
• 负责人: Hill, Ian
• 金额: $ 0.76万
• 依托单位: Dalhousie University
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments - Category 1 (<$150,000)
• 财政年份: 2006
• 资助国家: 加拿大
• 起止时间: 2006-01-01 至 2007-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=325994
• 关键词: Monochromator; wavelength; dependent; solar; cell

One of the primary areas of research in the Organic Electronic Materials and Devices group at Dalhousie University is the fabrication and optimization of organic solar cells.  Our recent studies of both simple bilayer heterojunction devices, and linearly graded mixed layer, or "bulk heterojunction", devices revealed a surprising time dependence of the photovoltaic response under continued illumination.  We were able to identify and understand the cause of this behaviour by illuminating the devices with three different LEDs - the first with a wavelength absorbed by only one of the two organic materials, the second absorbed by both, and a third absorbed by only the second of the two organic layers.  This method worked very well, in this case, but the methodology would be generally applicable and much more accurate if a continuously variable wavelength light source (from the near UV, over the visible, and into the near IR) with a narrow peak width were available. We are therefore requesting a monochromator, which we will couple to our existing solar simulation lamp, to provide such a source.

达尔豪西大学有机电子材料与器件研究组的主要研究领域之一是有机太阳能电池的制备和优化。我们最近对简单双层异质结器件和线性渐变混合层或“体异质结”的研究，器件揭示了一个令人惊讶的时间依赖性的光伏响应下连续照明。我们能够识别和理解的通过用三种不同的LED照射器件来解释这种行为的原因-第一种LED的波长仅被两种有机材料中的一种吸收，第二种被两种有机材料吸收，第三种仅被两种有机层中的第二种吸收。这种方法工作得很好，在这种情况下，但是如果连续可变波长光源（从近UV，在可见光上，和进入近IR）具有窄的峰宽度。因此，我们要求一个单色器，我们将耦合到我们现有的太阳能模拟灯，以提供这样的来源。