Photophysical and photoelectric properties of phthalocyanine-based MOF thin films

酞菁基MOF薄膜的光物理和光电性能

• 批准号: 316868143
• 负责人: Professor Dr. Stefan Bräse
• 金额: --
• 依托单位: Professur für Theoretische Chemie
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/316868143?language=en
• 关键词: Photophysical; photoelectric; properties; phthalocyanine; based

The overarching goal of the project proposed for the second funding period of the SPP is the fabrication of chromophore-based, crystalline and oriented MOF thin films (SURMOFs) on conducting and/or transparent substrates. Besides porphyrins (PPs), we will study phthalocyanines (PCs) and porphyrazines (PYs), both absorbing at longer wavelengths and hence nicely complementary to the PPs, which were successfully studied during the previous funding period. The monolithic SURMOF coatings will be characterized using photophysical and electrochemical methods. In selected cases, these films will be integrated in devices for specific applications, e.g. for photovoltaics. This work will complement the successful project on PP-based SURMOFs active during the first funding period and will exploit the higher stability of PCs and PYs for device fabrication, in particular in the area of photovoltaics and photo-electrochemistry. Our experience gained with the theoretical description of PP-based SURMOF photophysical properties during the previous funding period will be used to screen a large number of PCs and PYs in silico. This step is mandatory, since the synthesis of PCs and PYs is much more challenging as in case of the PPs. Only the most promising PC and PY candidates will then be synthesized and used to fabricate SURMOFs. Moreover, the layer-by-layer SURMOF growth process allows the hierarchical growth of SURMOFs carrying dyes of different absorption range. Consecutive stacking of PPs, PCs and PYs with absorption in increasing wavelength ranges will allow the design of photovoltaic devices with covering the entire solar spectrum, ranging from ultraviolet to infrared.

为SPP的第二个资助期提出的项目的总体目标是在导电和/或透明衬底上制备发色基晶态和取向的MOF薄膜(SURMOF)。除了卟啉(PPS)外，我们还会研究酞菁(PC)和卟啉(Pys)，这两种化合物的吸收波长都较长，因此与上一次资助期间成功研究的PPS具有很好的互补作用。用光物理和电化学方法对单块SURMOF涂层进行了表征。在特定情况下，这些薄膜将被集成到用于特定应用的设备中，例如用于光伏。这项工作将补充在第一个资助期内活跃的PP基SURMOF的成功项目，并将利用PC和Py在器件制造方面更高的稳定性，特别是在光伏和光电化学领域。我们在上一次资助期间对PP基SURMOF光物理性质的理论描述所获得的经验将被用于筛选大量的硅基PC和Py。这一步骤是强制性的，因为PC和Py的合成与PPS的情况一样具有更大的挑战性。然后，只有最有希望的PC和PY候选者将被合成并用于制备SURMOF。此外，逐层SURMOF生长过程允许携带不同吸收范围的染料的SURMOF的分层生长。PPS、PC和Py在不断增加的波长范围内吸收的连续堆叠将使光伏设备的设计能够覆盖从紫外线到红外的整个太阳光谱。