| Autor: |
Saidi K; Laboratoire de Physique Appliquée, Groupe des Matériaux Luminescents, Faculté des Sciences de Sfax, Département de Physique, Université de Sfax, BP 1171 Sfax, Tunisia., Yangui M; Laboratoire de Physique Appliquée, Groupe des Matériaux Luminescents, Faculté des Sciences de Sfax, Département de Physique, Université de Sfax, BP 1171 Sfax, Tunisia., Hernández-Álvarez C; Departamento de Física, MALTA-Consolider Team, IMN and IUdEA, Universidad de La Laguna, Apdo. Correos 456, E-38206 San Cristóbal de La Laguna, Santa Cruz de Tenerife, Spain., Dammak M; Laboratoire de Physique Appliquée, Groupe des Matériaux Luminescents, Faculté des Sciences de Sfax, Département de Physique, Université de Sfax, BP 1171 Sfax, Tunisia., Rafael Martín Benenzuela I; Departamento de Física, MALTA-Consolider Team, IMN and IUdEA, Universidad de La Laguna, Apdo. Correos 456, E-38206 San Cristóbal de La Laguna, Santa Cruz de Tenerife, Spain., Runowski M; Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland. |
| Abstrakt: |
Temperature and pressure are fundamental physical parameters in the field of materials science, making their monitoring of utmost significance for scientists and engineers. Here, the NaSrY(MoO4) 3 :0.02Er 3+ /0.01Tm 3+ /0.15Yb 3+ nanophosphor is developed as an optical sensor material. Under 975 nm laser excitation, the upconversion characteristics and optical detection performance of the multifunctional sensing platform of temperature and pressure (vacuum) are investigated. We have successfully developed a novel detection platform that enables optical detection of pressure (vacuum) and temperature. This platform utilizes thermally coupled levels (TCLs) and non-TCLs of Er 3+ and Tm 3+ to achieve ratiometric detection. The multimodal optical temperature and pressure detection based on TCLs and non-TCLs is successfully realized by using different emission bands of double emission centers, which makes it possible for self-referencing optical temperature and pressure measurement modes. These results indicate that the developed nanophosphor is a promising candidate for optical sensors, and our findings suggest potential strategies for modulating the sensor properties of luminescent materials doped with rare-earth ions. |
