Investigation of Single Crystal Perovskite for Mechanoluminescence-Based Sensor Application

• Other Authors: Braga Carani, Lucas (author)
• Format: Others
• Language: English; English
• Published: Florida State University
• Subjects: Engineering
• Online Access: http://purl.flvc.org/fsu/fd/2019_Fall_BragaCarani_fsu_0071N_15489

Organic-inorganic halide perovskites have received significant attention as a promising opportunity for low-cost, high-performance optoelectronic devices, such as solar cells, photodetectors, and light-emitting diodes due to their excellent optoelectronic properties and considerable low-cost production processes. There is a great interest to investigate further the possibility of integrating perovskites with other materials for the development of efficient optoelectronic devices. This thesis explores the feasibility of integration of single crystals perovskite and mechanoluminescent materials for the fabrication of pressure sensors. The combination and integration of the unique characteristics of perovskite crystals and mechanoluminescent materials are scarce in the literature. The integration of a perovskite layer and a mechanoluminescent material, such as ZnS:Cu can be used to fabricate a highly sensitive and fast-response device. This thesis will focus on the fabrication of an integrated sensing device made with two main components, a mechanoluminescent material layer, acting as a light-emitting layer, and a single crystal perovskite layer, functioning as a light-harvesting layer. This research covers all the process of the device fabrication and testing experiments under tensile and compression forces. The tests conducted proved that the light emitted by the mechanoluminescent material can be collected by a single crystal perovskite as an integrated sensing device. It is the initial step for further research on the utilization of perovskite materials for sensing devices. === A Thesis submitted to the Department of Industrial and Manufacturing Engineering in partial fulfillment of the requirements for the degree of Master of Science. === 2019 === September 30, 2019. === Includes bibliographical references. === Okenwa Okoli, Professor Directing Thesis; Tarik Dickens, Committee Member; Zhibin Yu, Committee Member.