Novel class of mesoporous films of transparent conducting oxides for optoelectronic devices with enhanced performance

用于具有增强性能的光电器件的新型透明导电氧化物介孔薄膜

• 批准号: 43475567
• 负责人: Professorin Dr. Dina Fattakhova-Rohlfing
• 金额: --
• 依托单位: Physikalisch-Chemisches Institut
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2007
• 资助国家: 德国
• 起止时间: 2006-12-31 至 2010-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/43475567?language=en
• 关键词: Novel; class; mesoporous; films; transparent

Large surface area interconnected networks of transparent conducting oxides (TCO) (doped indium, tin and zinc-based metal oxides) with developed mesoporous architecture will be synthesized. This novel type of materials will possess unique combination of tailored structure properties (electric conductivity, crystallinity and crystallites interconnectivity), controlled texture properties (3D-mesoporosity providing large accessible surface area, optimum pore size) and high optical transparency. Structure and texture properties of mesoporous TCO films will be controlled by using suitable structure-directing agents and post-synthetic treatment. Aside from the indium-based TCOs, development of cheaper classes of TCOs based on tin and zinc oxides will be in the focus of the project. Mechanisms of electrical conductivity and optical properties of developed mesoporous polycrystalline TCO systems will be studied. Optoelectronically active guests will be incorporated into the mesoporous TCO films, namely electrochromically active phthalocyanine molecules and layers of metal oxides such as WO3 and V2O5, electroluminescent ruthenium bipyridyl compounds and photoactive layers of metal oxides such as ZnO and TiO2 with the aim to develop new types of highly efficient dye-sensitized solar cells, electrochemoluminescent sensors and electrochromic devices.

具有发达介孔结构的透明导电氧化物(TCO)(掺杂铟、锡和锌基金属氧化物)的大比表面积互联网络将被合成。这种新型材料将具有定制的结构特性(导电性、结晶度和微晶互连)、可控织构特性(3D介孔提供更大的可访问表面积、最佳孔径)和高光学透明度的独特组合。采用合适的结构导向剂和后处理方法可以控制介孔TCO薄膜的结构和织构性质。除了基于铟的TCO外，基于锡和锌氧化物的廉价TCO的开发将是该项目的重点。我们将研究已开发的介孔多晶TCO体系的导电性和光学性质的机理。光电子活性客体将被引入到介孔TCO薄膜中，即电致变色活性的酞菁分子和WO_3、V2O_5等金属氧化物层、电致发光Ru的联吡啶化合物和金属氧化物层的光致发光层，目的是开发新型高效的染料敏化太阳能电池、电化学发光传感器和电致变色器件。