Mechanoluminescent-Perovskite Pressure Sensor for Structural Health Monitoring

Progress in Organic Triboluminescent EuD4TEA Crystal

“…However, a recent development by Shohag et al. [ 12, 13 ][ 75 ] has introduced a self‐powered TL‐based pressure sensor that utilizes perovskite as a photocollector. This innovation facilitates the easier integration of TL materials with photocollector devices and enhances the efficiency of harvesting TL light.…”

Performance Analysis of Embedded Mechanoluminescence-Perovskite Self-Powered Pressure Sensor for Structural Health Monitoring

“…A lot of effort has been made in the development of efficient and reliable methods for the real-time monitoring of the health of structures for prolonged service. Mechanoluminescence (ML)-based sensors have been developed for damage sensing in multifunctional composite materials [8][9][10][11][12][13][14]. ML is the emission of light as a response to mechanical actions on a material [15].…”

“…ML is the emission of light as a response to mechanical actions on a material [15]. ML can be triggered by pressure, crushing, impact load or wind action [8,11]. These materials can have many applications in stress sensing, dynamic pressure mapping, light sources or the detection of electric and magnetic fields [15,16].…”

“…These materials can have many applications in stress sensing, dynamic pressure mapping, light sources or the detection of electric and magnetic fields [15,16]. In addition, ML materials can also be useful in determining crack propagation and stress distribution [6,8,[10][11][12]. ML-based sensors have many advantages, such as simple device architecture, in-situ and self-power sensing and robustness over the conventional sensing technologies used in SHM, such as piezoelectric devices [17][18][19][20].…”

“…ML-based sensors have many advantages, such as simple device architecture, in-situ and self-power sensing and robustness over the conventional sensing technologies used in SHM, such as piezoelectric devices [17][18][19][20]. Recently, Shohag et al demonstrated a flexible, self-powered ML pressure sensor by integrating zinc sulfide:copper (ZnS:Cu) embedded in polydimethylsiloxane (PDMS) and a perovskite light-absorbing layer [8,17]. The light emitted by the ML layer is collected by the perovskite layer, which then converts light photons into an electrical current, avoiding the need for expensive equipment such as charge-coupled device (CCD) cameras and photomultipliers to collect ML emissions.…”