Smart Semiconductor-Heterojunctions Mechanoluminescence for printable and wearable sports light sources. (January 2023)

• Record Type: Journal Article
• Authors: Li, Xu; Wang, Chunfeng; Zheng, Yuantian; Huang, Zefeng; Luo, Jiangcheng; Zhu, Mingju; Liang, Tianlong; Ren, Biyun; Zhang, Xianhui; Wang, Dong; Ren, Zhanbing; Qu, Sicen; Zheng, Wei; Wei, Xiaoyan; Peng, Dengfeng
• Is Part Of: Materials & design. Volume 225(2023)
• Publication Date: 2023-01
• Subjects: Mechanoluminescence -- Doping -- Luminescence -- Heterojunction -- Smart Phosphor; Materials -- Periodicals; Engineering design -- Periodicals; Matériaux -- Périodiques; Conception technique -- Périodiques; Electronic journals; 620.11
• DOI: 10.1016/j.matdes.2023.111589
• Languages: English
• ISSNs: 0264-1275

Abstract

Graphical abstract: Mechanoluminescence materials, which directly convert mechanical energy into light emission, have emerged as an emerging class of light-emitting materials with various applications. We designed various Mn-doped ternary heterojunctions CaZnOS-ZnS-SrZnOS were designed for the wearable clothes and printable things, which show battery-free light emitting, thereby providing a new idea for the development of wearable flexible self-luminous devices and for a wide range of applications in smart energy-saving display, safety and rescue, and anti-counterfeiting. Highlights: The various Mn-doped ternary heterojunctions CaZnOS-ZnS-SrZnOS were designed, the ternary heterojunction materials have higher performance with ML intensity: over 60 times stronger than that of the SrZnOS. The wearable clothes composed of mechanoluminscent Zippers and Velcro were designed to show battery-free light emitting, thereby providing a new idea for the development of wearable flexible self-luminous devices and for a wide range of applications in smart energy-saving display, safety and rescue, information security and human-robotic interface. The printable things with force-driven light-emitting have be printed on the surface of various commodities or their packaging, which have opened the door of mechanoluminscent anti-counterfeiting applications. Abstract: Mechanoluminescence (ML) materials, which directly convert mechanical energy into light emission, have emerged as an emerging class of light-emitting materials with various applications. Although significant progress has been made in the development of new ML materials and devices, their practical application is limited by their low intensity and homogenously structured host structures. Thus, multiple-structured host ML materials with high ML intensity and reproducibility are needed, particularly for wearable and printable ML light sources with high brightness. In this study, various Mn-doped ternary heterojunction ML materials, CaZnOS-ZnS-SrZnOS, are synthesised by high-temperature solid-phase reactions, and their luminescence properties are systematically tested. The result indicates that the ternary heterojunction materials have a higher ML intensity over 60 times stronger than the state-of-art SrZnOS: Mn 2+, which is currently the brightest sample we have obtained. ML linearly depends on the magnitude of the applied force. Based on the synthesised ternary ML heterojunctions, repetitive self-driving luminescence of the zipper is achieved for the first time through powder modification and inlay; the clothes composed of our prepared zippers are pulled and bent when worn on the body to emit bright visible light. Additionally, a Velcro that can achieve light emission is developed; it provides a new idea for the development of wearable flexible self-luminous devices in the future. Simultaneously, movement-driven stress luminous printable objects that can be printed on the surface of various commodities or their packaging are demonstrated. The preparation of self-driven, battery-free, and electrode-free stress luminescence wearable low light sources has an important application trend, which can avoid the interference of the circuit and improve the stability of the devices, thus promising a wide range of applications in smart wear, energy-saving displays, safety and rescue, robotic skin, and information security.