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- 摘要
- 关键词
- 实验方案
- 产品
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Silicon Containing Hybrid Copolymers || Construction of Organic Optoelectronic Materials by Using Polyhedral Oligomeric Silsesquioxanes ( <scp>POSS</scp> )
摘要： Organic optoelectronic materials can be generally divided into small molecular weight semiconductors and conjugated polymers with high opto/electronic performance. This interesting electroluminescence and conducting properties were first discovered in the 1970s, but the real surge of the interest occurred in the past 20 years with significant improvements in material performance through creative material design and high material purification. Small molecular weight semiconductors are interesting because of their high purity, ordered structures, and ideal model for fundamental mechanism studies of excitons and charge carriers. Conjugated polymers are mainly used for device fabrication for their advantages of large‐area device fabrication, high performance, and multiple functions. Currently, organic materials receive considerable attention because of their successful applications in organic light‐emitting diodes (OLEDs), solar cell, liquid crystal display (LCD), thin film transistors, sensors, electrochromic devices, and many others. Thanks to the extensive academic and industrial efforts, the mechanism and the relationship between the molecular structure and optoelectronic properties have been illustrated, and various device structures have been developed. Although organic optoelectronic materials have experienced tremendous progress over the past 10 years in fundamental physics and real applications, more work is necessary such as theoretical descriptions in charge generation and transport, distinction in the contributions of various interactions, thermal stability improvement, and commercialization of existing applications. Various new phenomena are still being discovered every day and device performance is continuing to rise. Among these efforts, the incorporation of polyhedral oligomeric silsesquioxanes (POSSs) into organic optoelectronic materials to achieve improved performances has been attracting attention particularly because of the unique and interesting hybrid structures of POSS.
关键词： Electroluminescence,Organic optoelectronic materials,Polyhedral oligomeric silsesquioxanes (POSS),Liquid crystal display (LCD),Electrochromic materials
更新于2025-09-23 15:19:57
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Crystal Engineering of Organic Optoelectronic Materials
摘要： Crystal engineering can be regarded as the highly ordered and complicated supramolecular synthesis of functional crystalline solids by control of intermolecular interactions. As one of the most important organic solids for crystal engineering, organic optoelectronic materials have received tremendous interest in the past several decades. In this review, we discuss systematically how to design organic optoelectronic materials from the perspective of crystal engineering including molecular structures, intermolecular interactions, packing arrangements, crystal growth, and patterning methods as well as two-component and multi-component molecular materials. We underline the correlations among molecular structures, packing modes, crystal morphologies, and optoelectronic properties. Finally, we address several key points for further exploration in this field.
关键词： Crystal Growth,Intermolecular Interactions,Crystal Engineering,Patterning Methods,Organic Optoelectronic Materials,Packing Arrangements
更新于2025-09-19 17:13:59
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Near‐infrared organic photoelectric materials for light‐harvesting systems: Organic photovoltaics and organic photodiodes
摘要： The inherent advantages of organic optoelectronic materials endow light-harvesting systems, including organic photovoltaics (OPVs) and organic photodiodes (OPDs), with multiple advantages, such as low-cost manufacturing, light weight, flexibility, and applicability to large-area fabrication, make them promising competitors with their inorganic counterparts. Among them, near-infrared (NIR) organic optoelectronic materials occupy a special position and have become the subject of extensive research in both academia and industry. The introduction of NIR materials into OPVs extends the absorption spectrum range, thereby enhancing the photon-harvesting ability of the devices, due to which they have been widely used for the construction of semitransparent solar cells with single-junction or tandem architectures. NIR photodiodes have tremendous potential in industrial, military, and scientific applications, such as remote control of smart electronic devices, chemical/biological sensing, environmental monitoring, optical communication, and so forth. These practical and potential applications have stimulated the development of NIR photoelectric materials, which in turn has given impetus to innovation in light-harvesting systems. In this review, we summarize the common molecular design strategies of NIR photoelectric materials and enumerate their applications in OPVs and OPDs.
关键词： organic photodiodes,near infrared,organic optoelectronic materials,organic photovoltaics
更新于2025-09-12 10:27:22