Smart materials for flexible devices: 3D and 4D printing with electromagnetic stimuli-responsive capabilities

Smart materials, when integrated with 3D and 4D printing technologies, are significantly impacting the landscape of flexible electronic devices. This chapter delves into the integration of smart materials with 3D and 4D printing technologies in flexible electronic devices to illuminate the increasing importance of these advancements across sectors such as wearables, soft robotics, healthcare, and aerospace. By examining the potential of these technologies, the aim is to address current challenges and propose future directions to advance materials science and manufacturing, fostering innovation in electronic technologies. The focus is on exploring the context of integrating smart materials with 3D and 4D printing technologies in flexible electronic devices to elucidate the reasons behind the growing interest in these advancements. The goals include elucidating the advantages of 4D printing over 3D printing, highlighting various categories of smart materials, and illustrating their real-world applications. Comparative analysis and empirical investigations are employed to uncover the versatility and adaptability of smart materials, reinforcing the argument for their widespread adoption. Finally, the significance of these findings in advancing smart technologies and shaping future research directions in the field is discussed.