Fabrication, Functionalities and Applications of Transparent Wood: A Review

Transparent wood (TW)-based materials have increasingly become the focus of researchers worldwide owing to their superior physico-chemical-optical properties, sustainable nature, as well as the fact that they are highly accommodating frameworks that can act as building blocks to readily explore a vast range of potential functionalities, holding great potential to displace glass and plastics in their various respective applications. The integration of multiple functionalities into TW has been undertaken to fulfill the demands of prospective sophisticated applications through the utilization of functional fillers or coatings. Herein, the up-to-date foundational developments and reports concerning emergent TW composites and coatings from a perspective of fabrication-functionality-application are comprehensively summarized, with a particular focus on seven specific functionalities; i) solar control; ii) chromically-responsive, iii) electrically-conductive, iv) shape-memory active; v) flame-retardant; vi) electromagnetic interference shielding; and vii) aesthetics. The potential applications of TW with these functionalities are also discussed. Finally, the current challenge with TW is addressed, as well as the future developments required for eventual real-world application.

Automated summary

Transparent wood (TW)-based materials have attracted worldwide attention due to their superior physico-chemical-optical properties and sustainable nature, making them potential substitutes for glass and plastics. This article comprehensively summarizes the recent advancements in TW composites and coatings, focusing on seven specific functionalities: solar control, chromically-responsive, electrically conductive, shape-memory active, flame-retardant, electromagnetic interference shielding, and aesthetics. Additionally, potential applications of TW with these functionalities are discussed, along with the current challenges and future developments required for real-world applications.