SOLAR: Ultrabroad spectral bandwidth excitonic thin film solar cells based on carbon nanotubes

太阳能：基于碳纳米管的超宽光谱带宽激子薄膜太阳能电池

• 批准号: 0934098
• 负责人: Stephen Forrest
• 金额: $ 150万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-01 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0934098&HistoricalAwards=false
• 关键词: SOLAR; Ultrabroad; spectral; bandwidth; excitonic

This award on solar energy research is co-funded by the Divisions of Chemistry, Materials Research, and Mathematical Sciences of the Directorate for Mathematical and Physical Sciences. A collaboration of chemistry, materials science, mathematics, physics, and engineering groups at the University of Michigan and the University of Southern California will develop a unique, new, thin film solar cell based on polymer-wrapped carbon nanotubes (CNTs). These films will be used in donor-acceptor heterojunctions employing a range of new organic materials and device structures, including polymers and small molecules. The use of CNTs extends the optical sensitivity from the blue into the near infrared, allowing organic-based devices to approach nearly thermodynamically-limited power conversion efficiencies. Simulated excited state (exciton) flow and charge transport through the CNT network uses new treecode algorithms and semi-classical hydrodynamical models. Efficient, multi-dimensional optimization methods are used to develop novel aperiodic dielectric stacks that couple the broad solar spectrum into very thin films used as the active device region in solar cells. A diverse range of undergraduate and graduate students and postdoctoral fellows are engaged in this interdisciplinary research in renewable energy. These students are provided with opportunities to influence policy decisions regarding energy choices through coursework in energy policy and geopolitics on their respective university campuses. The group is also involved in the University of Michigan's Saturday Morning Physics lecture series, providing the public with insights into the latest science and technologies.

该太阳能研究奖项由数学和物理科学理事会的化学、材料研究和数学科学部门共同资助。密歇根大学和南加州大学的化学、材料科学、数学、物理和工程小组将合作开发一种基于聚合物包裹碳纳米管（CNT）的独特新型薄膜太阳能电池。这些薄膜将用于采用一系列新型有机材料和器件结构（包括聚合物和小分子）的供体-受体异质结。碳纳米管的使用将光学灵敏度从蓝色扩展到近红外，使有机器件能够接近热力学限制的功率转换效率。通过 CNT 网络模拟激发态（激子）流和电荷传输使用新的树代码算法和半经典流体动力学模型。高效的多维优化方法用于开发新型非周期性电介质叠层，将宽广的太阳光谱耦合到非常薄的薄膜中，用作太阳能电池的有源器件区域。各种各样的本科生、研究生和博士后研究员正在从事可再生能源的跨学科研究。这些学生有机会通过各自大学校园的能源政策和地缘政治课程来影响有关能源选择的政策决策。该小组还参与了密歇根大学的周六上午物理讲座系列，为公众提供对最新科学和技术的见解。