NIRT: Ultra-high efficiency metal nanostructure-enhanced organic solar cells

NIRT：超高效率金属纳米结构增强有机太阳能电池

• 批准号: 0507301
• 负责人: Peter Peumans
• 金额: $ 130万
• 依托单位: Stanford University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-08-01 至 2010-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0507301&HistoricalAwards=false
• 关键词: NIRT; Ultra; efficiency; metal; nanostructure

0507301PeumansThe PI proposes a new organic solar cell architecture that incorporates metal nanostructured antennae into the organic thin films. The metal nanostructures are used to concentrate the incident electromagnetic flux near the active interface of the organic donor-acceptor cells, resulting in increased absorption and exciton diffusion efficiencies. Furthermore, highly transparent nanopatterned metal films will be used as contacts in multijunction solar cell architectures. The high lateral conductivity of such nanopatterned metal films will allow for lateral photocurrent extraction in multijunction cells leading to a reduced sensitivity of the power conversion efficiency to the spectral content. Ultimately, this will lead to more efficient cell designs with power conversion efficiencies 20%. To fabricate the required organic-metal nanostructures, he will use a combination of templated and solution-phase synthesis to create monodisperse metallic nanostructures. These structures will subsequently be deposited using an aerosol technique, simultaneous with thermal evaporation of the organic molecules.Intellectual meritThe demonstration of efficient (20%) metal nanostructure enhanced multijunction PV cells would represent a true breakthrough in the field of photovoltaics. The availability of cheap, highly efficient PV cells, manufactured without significant pollution, will benefit society enormously in terms of reducing the emission of greenhouse gases and pollutants, reducing our dependence on oil reserves, creating new jobs and improving the image of science and engineering. In addition, the work on nanoscale organic-metal composite structures will help elucidate the fundamental limits of nanoscale metals in optical applications.Broader ImpactThe work proposed will lead to invaluable insight in the manufacturing of nanoscale features over large areas. The modeling tools, and characterization and fabrication techniques that the PI plans to develop will have broader applications in nanoscience and engineering. In addition, he will organize a yearly workshop on metal-organic nanocomposites, establish a high-school mentoring program, and involve undergraduate students in the research. The results of the proposed work will be incorporated in the televised course on Nanophotonics that is broadcast through the Stanford Center for Professional Development.

0507301Peumans PI提出了一种新的有机太阳能电池架构，将金属纳米结构天线融入有机薄膜中。金属纳米结构用于将入射电磁通量集中在有机供体-受体电池的活性界面附近，从而提高吸收和激子扩散效率。此外，高度透明的纳米图案金属薄膜将用作多结太阳能电池结构中的触点。这种纳米图案金属薄膜的高横向电导率将允许多结电池中的横向光电流提取，从而导致功率转换效率对光谱内容的敏感性降低。最终，这将带来更高效的电池设计，功率转换效率提高 20%。为了制造所需的有机金属纳米结构，他将结合使用模板合成和溶液相合成来创建单分散金属纳米结构。这些结构随后将使用气溶胶技术沉积，同时有机分子的热蒸发。智力价值高效（20%）金属纳米结构增强型多结光伏电池的演示将代表光伏领域的真正突破。廉价、高效、无明显污染的光伏电池的出现，将在减少温室气体和污染物的排放、减少我们对石油储备的依赖、创造新的就业机会以及改善科学和工程的形象方面给社会带来巨大的好处。此外，关于纳米级有机金属复合结构的工作将有助于阐明纳米级金属在光学应用中的基本限制。更广泛的影响所提出的工作将为大面积纳米级特征的制造带来宝贵的见解。 PI 计划开发的建模工具、表征和制造技术将在纳米科学和工程领域拥有更广泛的应用。此外，他还将组织每年一度的金属有机纳米复合材料研讨会，建立高中指导计划，并让本科生参与研究。拟议工作的结果将纳入通过斯坦福专业发展中心播出的纳米光子学电视课程中。