Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Box 16300, Aalto, Espoo, 00076, Finland.
Department of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, Aalto, FI-00076, Finland.
Adv Mater. 2022 Feb;34(6):e2104473. doi: 10.1002/adma.202104473. Epub 2021 Dec 18.
This review addresses the reconstruction of structural plant components (cellulose, lignin, and hemicelluloses) into materials displaying advanced optical properties. The strategies to isolate the main building blocks are discussed, and the effects of fibrillation, fibril alignment, densification, self-assembly, surface-patterning, and compositing are presented considering their role in engineering optical performance. Then, key elements that enable lignocellulosic to be translated into materials that present optical functionality, such as transparency, haze, reflectance, UV-blocking, luminescence, and structural colors, are described. Mapping the optical landscape that is accessible from lignocellulosics is shown as an essential step toward their utilization in smart devices. Advanced materials built from sustainable resources, including those obtained from industrial or agricultural side streams, demonstrate enormous promise in optoelectronics due to their potentially lower cost, while meeting or even exceeding current demands in performance. The requirements are summarized for the production and application of plant-based optically functional materials in different smart material applications and the review is concluded with a perspective about this active field of knowledge.
这篇综述探讨了将结构植物成分（纤维素、木质素和半纤维素）重建为具有先进光学性能的材料的方法。讨论了分离主要建筑块的策略，并介绍了纤维化、原纤维排列、致密化、自组装、表面图案化和复合化的效果，考虑了它们在工程光学性能中的作用。然后，描述了使木质纤维素能够转化为具有光学功能的材料的关键因素，例如透明度、雾度、反射率、紫外线阻挡、发光和结构色。展示了从木质纤维素中可获得的光学景观图，这是将其用于智能设备的重要步骤。包括从工业或农业副产物中获得的可持续资源在内的先进材料，由于其潜在的低成本，在光电领域具有巨大的应用前景，同时满足甚至超过了当前的性能要求。总结了在不同智能材料应用中生产和应用基于植物的光学功能材料的要求，并对这一活跃的知识领域进行了展望。
