New Solution-Processable Phthalocyanine Derivatives with Near-Infrared Absorbing Condensed Phase Morphologies: Application to Organic Solar Cells

具有近红外吸收凝聚相形态的新型可溶液加工酞菁衍生物：在有机太阳能电池中的应用

• 批准号: 1464530
• 负责人: Dominic McGrath
• 金额: $ 32.55万
• 依托单位: University of Arizona
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-05-01 至 2019-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1464530&HistoricalAwards=false
• 关键词: New; Solution; Processable; Phthalocyanine; Derivatives

In this project jointly funded by the Chemical Structure, Dynamic & Mechanism B Program of the Division of Chemistry (CHE) and the Electronic and Photonic Materials program of the Division of Materials Research (DMR), Professor Dominic McGrath of the Department of Chemistry at the University of Arizona will develop new classes of phthalocyanine dyes with interesting optoelectronic properties. The goal of this research is to exploit the properties of these dyes in new optoelectronic devices, particularly solution processable solar energy technologies, which may ultimately be produced in a fashion that is low cost, and with a scalability that meaningfully contributes to the sustainability of our planet. This research program has elements of molecular design, synthesis, characterization, and investigation of condensed phased materials properties, and as such will provide a multidimensional vehicle for training of scientists from all levels, including those from students underrepresented in the STEM fields. Outreach activities to K-12 and community college students are also planned. Phthalocyanine chromophores display a combination of long wavelength absorbance, photochemical stability, and photoconductivity, making them useful for solar transduction technologies such as organic solar cells. The proposed synthesis develops a new class of phthalocyanines intended to develop a fundamental understanding between molecular structure and condensed phase (i.e. thin film) properties such as charge mobility and light absorption. In this project, four classes of new phthalocyanine chromophores will be prepared to answer the following questions: 1) Can a C2-symmetrical phthalocyanine molecular structure provide solution processibility while maintaining condensed phase close molecular overlap known to be critical to near-infrared spectral response and high charge mobility? 2) Can the material energetics, critical for maintaining vectorial charge transport and high open-circuit photovoltages, be predictably modulated based on structural elements? 3) Will the condensed phase properties of these materials, when appropriately optimized, translate to viability as materials for solar-electric conversion in device platforms with appropriate acceptor molecules?

在这个由化学系（CHE）的化学结构、动力学机制B项目和材料研究系（DMR）的电子和光子材料项目共同资助的项目中，亚利桑那大学化学系的Dominic麦格拉思教授将开发具有有趣光电性能的新型酞菁染料。这项研究的目标是利用这些染料在新的光电器件中的特性，特别是可溶液加工的太阳能技术，这些技术最终可能以低成本的方式生产，并且具有可扩展性，这对我们星球的可持续性有意义。该研究计划具有分子设计，合成，表征和凝聚相材料特性研究的元素，因此将为各级科学家的培训提供多维工具，包括那些在STEM领域代表性不足的学生。 还计划向K-12和社区大学学生开展外联活动。 酞菁发色团显示出长波长吸收、光化学稳定性和光电导性的组合，使得它们可用于太阳能转换技术，例如有机太阳能电池。 提出的合成开发了一类新的酞菁，旨在发展分子结构和凝聚相（即薄膜）性质，如电荷迁移率和光吸收之间的基本理解。 在这个项目中，将制备四类新的酞菁发色团来回答以下问题：1）C2对称酞菁分子结构是否可以提供溶液加工性，同时保持凝聚相紧密的分子重叠，这对近红外光谱响应和高电荷迁移率至关重要？2)材料的能量，维持矢量电荷传输和高开路光电压的关键，可以预测调制的基础上的结构元素？3)当适当优化时，这些材料的凝聚相特性是否会转化为具有适当受体分子的器件平台中的太阳能-电力转换材料的可行性？