High-Efficiency, Dye-Sensitized Solar Cells

高效染料敏化太阳能电池

• 批准号: 1033255
• 负责人: John Falconer
• 金额: $ 30万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-08-01 至 2014-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1033255&HistoricalAwards=false
• 关键词: Efficiency; Dye; Sensitized; Solar; Cells

1033255FalconerIntellectual MeritDye-sensitized solar cells (DSSCs) have the potential to be an inexpensive alternative to solar cells that use much more expensive components such as silicon. The fabrication of DSSCs that have significantly higher solar energy conversion efficiency could have a major impact on solar cell implementation. Currently, several factors limit increases in DSSC efficiency and their practical use, such as undesired electron recombination pathway, inefficient light harvesting, and high cost of rare earth-based (e.g. ruthenium) photosensitizers. DSSCs with novel multi-layered structures have potential to overcome the traditional thickness limitation for the TiO2 layer, and would enable efficient collection of electrons generated from multiple TiO2 layers. The proposed research will explore the structure-efficiency relationships of DSSCs fabricated with a novel multi-layered structure motif. New approaches are proposed to create a multi-layered structure using atomic layer deposition. Furthermore, a proposed cyclization-anchoring strategy will be utilized to introduce 2-D or 3-D cyclic arrays of low-cost, hybrid organic photosensitizers with broad absorption bands into DSSCs to improve light harvesting. The proposed research will lead to better understanding of the structure-property relationships in multi-layered DSSCs, and may open up new approaches for the development of novel structure motifs for high-efficiency DSSCs.Broader ImpactsThis research project will provide cross-disciplinary training for one graduate student in chemistry and one graduate student in chemical engineering in renewable energy technologies. At least six undergraduate students will also participate in this interdisciplinary research program. The education and outreach plan will make a particular effort to recruit, work with, and encourage students from underrepresented groups.

染料敏化太阳能电池（DSSC）有可能成为使用昂贵得多的组件（如硅）的太阳能电池的廉价替代品。 具有显著更高的太阳能转换效率的DSSC的制造可能对太阳能电池的实现产生重大影响。 目前，几个因素限制了DSSC效率的提高及其实际应用，例如不期望的电子复合途径、低效的光捕获和稀土基（例如钌）光敏剂的高成本。 具有新型多层结构的DSSC具有克服传统的TiO 2层厚度限制的潜力，并且能够有效地收集从多个TiO 2层产生的电子。 该研究将探索一种新型多层结构基序制备的DSSC的结构效率关系。 提出了使用原子层沉积来创建多层结构的新方法。 此外，提出的环化锚定策略将用于将具有宽吸收带的低成本混合有机光敏剂的2-D或3-D环状阵列引入DSSC中以改善光捕获。 建议的研究将导致更好地了解在多层DSSC的结构与性能的关系，并可能开辟新的方法，为高效率的DSSC的新结构motifs的发展。更广泛的影响这个研究项目将提供一个研究生在化学和化学工程研究生在可再生能源技术的跨学科培训。 至少有六名本科生也将参加这个跨学科的研究计划。 教育和外联计划将特别努力招募、与代表性不足群体的学生合作并鼓励他们。