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In Small (Weinheim an der Bergstrasse, Germany)

Template methods are regarded as an important method for micro-nano processing in the active layer of flexible tactile sensors. These template methods use physical/chemical processes to introduce micro-nano structures on the active layer, which improves many properties including sensitivity, response/recovery time, and detection limit. However, since the processing process and applicable conditions of the template method have not yet formed a perfect system, the development and commercialization of flexible tactile sensors based on the template method are still at a relatively slow stage. Despite the above obstacles, advances in microelectronics, materials science, nanoscience, and other disciplines have laid the foundation for various template methods, enabling the continuous development of flexible tactile sensors. Therefore, a comprehensive and systematic review of flexible tactile sensors based on the template method is needed to further promote progress in this field. Here, the unique advantages and shortcomings of various template methods are summarized in detail and discuss the research progress and challenges in this field. It is believed that this review will have a significant impact on many fields of flexible electronics, which is beneficial to promote the cross-integration of multiple fields and accelerate the development of flexible electronic devices.

Niu Hongsen, Zhang Huiyun, Yue Wenjing, Gao Song, Kan Hao, Zhang Chunwei, Zhang Congcong, Pang Jinbo, Lou Zheng, Wang Lili, Li Yang, Liu Hong, Shen Guozhen


artificial intelligence, micro-nano processing, micro-nano structure, sensing array, tactile sensors, template method