High Efficiency Hybrid Solar Cells Based on Intimate Hyperbranched Nanocomposite Assemblies

基于紧密超支化纳米复合材料组件的高效混合太阳能电池

• 批准号: 1305087
• 负责人: Zhiqun Lin
• 金额: $ 33万
• 依托单位: Georgia Tech Research Corporation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-07-01 至 2016-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1305087&HistoricalAwards=false
• 关键词: Efficiency; Hybrid; Solar; Cells; Based

The objective of this program is to develop an innovative approach to yield high efficiency organic?{inorganic hybrid solar cells based on hyperbranched nanocomposite assemblies composed of sea-urchin-like semiconductor nanocrystals and upconversion nanocrystals that are intimately and permanently connected with conjugated polymers (i.e., potentially transformative research). The intellectual merit is manifested in innovative design and crafting of inorganic sea-urchin-like nanocrystals (i.e., CdSe and upconversion nanocrystal/CdSe) that are closely linked with conjugated polymers to yield high efficiency hybrid solar cells for renewable energy production as a direct consequence of (a) largely increased light harvesting efficiency due to the incorporation of upconversion nanocrystals for expanding the absorption spectrum to infrared range, (b) faster charge transfer from conjugated polymer to sea-urchin-like nanocrystals attributed to intimate interfacial contact between conjugated polymer and nanocrystals enabled by utilizing star-like block copolymer templates, and (c) enhanced pathway for efficient charge transport and longer electron lifetime resulting from the use of anisotropic sea-urchin-like CdSe nanocrystals (i.e., they interconnect one another to yield a network for fast charge transport). The broader impacts include strong nanoscience education across several levels. Undergraduate students, especially those from underrepresented groups, will be recruited to participate in the research project. Summer research for high school teachers in the PI's lab will provide a medium for transferring nanomaterials science and technology knowledge to high school classrooms. High school students will further be exposed to nanoscience through annual Career Day in the School of Materials Science and Engineering at Georgia Tech.

这个项目的目标是开发一种创新的方法来生产高效率的有机产品。{无机杂化太阳能电池基于由海胆状半导体纳米晶体和上转换纳米晶体组成的超支化纳米复合材料组件，这些纳米晶体与共轭聚合物紧密而永久地连接在一起（即，潜在的变革研究）。知识价值体现在无机海胆样纳米晶体（即CdSe和上转换纳米晶体/CdSe）的创新设计和工艺上，这些纳米晶体与共轭聚合物紧密相连，可生产用于可再生能源生产的高效混合太阳能电池，这是(a)由于加入上转换纳米晶体将吸收光谱扩展到红外范围而大大提高了光收集效率的直接结果；(b)利用星形嵌段共聚物模板使共轭聚合物和纳米晶体之间的密切界面接触使电荷更快地从共轭聚合物转移到海胆样纳米晶体；(c)使用各向异性海胆样CdSe纳米晶体增强了有效电荷传输的途径和更长的电子寿命（即，它们相互连接以产生快速电荷传输网络）。更广泛的影响包括在几个层面上加强纳米科学教育。本科生，特别是那些来自代表性不足的群体，将被招募参加研究项目。在PI实验室为高中教师进行的暑期研究将为将纳米材料科学和技术知识转移到高中课堂提供一个媒介。高中学生将通过佐治亚理工学院材料科学与工程学院的年度职业日进一步接触纳米科学。