Broadly tuneable probe source for transient absorption spectroscopy over sub-millisecond time windows

广泛可调的探针源，用于亚毫秒时间窗口内的瞬态吸收光谱

• 批准号: 406486-2011
• 负责人: Silva, Carlos
• 金额: $ 7.34万
• 依托单位: Université de Montréal
• 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: 2010
• 资助国家: 加拿大
• 起止时间: 2010-01-01 至 2011-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=472489
• 关键词: Broadly; tuneable; probe; source; transient

Harvesting solar energy is a key endeavour for this century as we face ever-decreasing fossil fuel world reserves and ever-increasing environmental crises emanating from greenhouse gas production. Solar cell technology is currently based on silicon. Devices used for human energy consumption yield solar power conversion efficiencies of around 10%, which is sufficient to meet a significant fraction of energy demands in the industrialised world, but manufacturing such devices costs too much energy and produces greenhouse gases. In order to recover such energetic costs, three to four years of continuous operation are required. This energy payback represents a serious obstacle to widespread implementation of this technology other than those with long lifetime expectancy, i.e. 25 to 30 years. In order for solar energy to have a more substantial impact on our energy requirements, we need to find alternative technologies that reduce energy payback periods and device processing costs. Our research group focuses on conjugated polymers, which now provide a technologically viable class of solution-processable, film-forming semiconductors.

收集太阳能是本世纪的一项关键努力，因为我们面临着世界化石燃料储量不断减少和温室气体生产造成的环境危机不断增加的问题。太阳能电池技术目前基于硅。用于人类能源消耗的设备产生的太阳能转换效率约为10%，足以满足工业化世界的大部分能源需求，但制造此类设备的成本太高，并产生温室气体。为了收回这些能源成本，需要连续运行三到四年。这种能量回收是除了具有长寿命预期（即25至30年）的技术之外广泛实施该技术的严重障碍。为了让太阳能对我们的能源需求产生更大的影响，我们需要找到替代技术，以减少能源回收期和设备处理成本。我们的研究小组专注于共轭聚合物，它现在提供了技术上可行的一类溶液加工，成膜半导体。