Collaborative Research: Block Copolymer Compatibilizers for Controlled Morphology and Interfacial Properties in Polymer-Fullerene Blends

合作研究：用于控制聚合物-富勒烯共混物形态和界面性质的嵌段共聚物增容剂

• 批准号: 1264583
• 负责人: Venkat Ganesan
• 金额: $ 19.45万
• 依托单位: University of Texas at Austin
• 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 2017-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1264583&HistoricalAwards=false
• 关键词: Collaborative; Research; Block; Copolymer; Compatibilizers

The PIs have previously found that a hierarchical morphology of donor and acceptor domains led to a high yield of electron transfer, enhanced exciton dissociation, and a high power conversion efficiency (PCE). In this proposal, they seek to combine theory and experiments in a coordinated approach to manipulate the nanostructured hierarchical morphologies in a controlled manner in order to quantify the influence of different morphological length scales on the optoelectronic properties and the efficiencies of solar cells composed of a semi-conducting donor and the fullerene acceptor system, PCBM. One way to ensure increased contact between the donor and acceptor phases is to use block copolymers (BCP), PTB7, as ?compatiblizers? to meld the two phases. Their approach is to find what the ?design rules? are for OPVs by undertaking a systematic combined experimental-theoretical investigation for designing efficient compatibilizers in the context of OPV applications. Their general plan is to synthesize PTB7 block copolymers, measure the ÷-interaction parameter between model polymer blocks, PTB7, and fullerene in thin film, multilayer blends, then elucidate and correlate the thermodynamics and microstructures of the BHJ blends to the morphology and optoelectronic properties of bulk heterojunction photovoltaics with PTB7 block copolymer compatibilizers.

PI先前已经发现，供体和受体领域的层次形态导致电子传输的高收率，增强的令人兴奋的分离以及高功率转化效率（PCE）。在这项提案中，他们试图以一种协调的方法将理论和实验结合起来，以一种受控的方式操纵纳米结构的层次形态，以量化不同形态长度尺度对光电特性的影响以及光量细胞组成的太阳能细胞的效率。确保捐助者和受体阶段之间接触增加的一种方法是使用块共聚物（BCP），PTB7，作为兼容器？融合了两个阶段。他们的方法是找到“设计规则”？用于OPV，通过进行系统合并的实验理论投资，以在OPV应用程序的背景下设计有效的兼容器。他们的一般计划是合成PTB7嵌段共聚物，测量模型聚合物块，PTB7和在薄膜，多层混合物中的纯聚合物之间的÷ - 相互作用参数，然后阐明并将BHJ Blote-Protof Protof potoloct Phototies of Bulkronic Propties的热力学和微观结构相关联，并将其相关联。共聚物兼容器。