PDF(Pubmed)
Abstract：
The preparation of high-performance electro-optical materials is one of the key factors determining the application of optoelectronic communication technology such as 5G communication, radar detection, terahertz, and electro-optic modulators. Organic electro-optic materials have the advantage of a high electro-optic coefficient (~1000 pm/V) and could allow the utilization of photonic devices for the chip-scale integration of electronics and photonics, as compared to inorganic electro-optic materials. However, the application of organic nonlinear optical materials to commercial electro-optic modulators and other fields is also facing technical bottlenecks. Obtaining an organic electro-optic chromophore with a large electro-optic coefficient (r33 value), thermal stability, and long-term stability is still a difficulty in the industry. This brief review summarizes recent great progress and the strategies to obtain high-performance OEO materials with a high electro-optic coefficient and/or strong long-term stability. The configuration of D-π-A structure, the types of materials, and the effects of molecular engineering on the electro-optical coefficient and glass transition temperature of chromophores were summarized in detail. The difficulties and future development trends in the practical application of organic electro-optic materials was also discussed.
摘要：
高性能电光材料的制备是决定5G通信等光电通信技术应用的关键因素之一，雷达探测,太赫兹,和电光调制器。有机电光材料具有高电光系数（〜1000pm/V）的优点，可以利用光子器件进行电子学和光子学的芯片级集成，与无机电光材料相比。然而,有机非线性光学材料在商用电光调制器等领域的应用也面临着技术瓶颈。获得具有大电光系数（r33值）的有机电光发色团，热稳定性，而长期稳定仍是行业的难点。这篇简要综述总结了最近的重大进展以及获得具有高电光系数和/或强长期稳定性的高性能OEO材料的策略。D-π-A结构的构型,材料的种类,详细总结了分子工程对发色团电光系数和玻璃化转变温度的影响。还讨论了有机电光材料在实际应用中的难点和未来的发展趋势。
