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Multiple ratiometric nanothermometry using semiconductor BiFeO3 nanowires and quantitative validation of thermal sensitivity. MICRO AND NANO SYSTEMS LETTERS 2022. [DOI: 10.1186/s40486-022-00143-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
AbstractHere, we report a very sensitive, non-contact, ratio-metric, and robust luminescence-based temperature sensing using a combination of conventional photoluminescence (PL) and negative thermal quenching (NTQ) mechanisms of semiconductor BiFeO3 (BFO) nanowires. Using this approach, we have demonstrated the absolute thermal sensitivity of ~ 10 mK−1 over the 300–438 K temperature range and the relative sensitivity of 0.75% K−1 at 300 K. Further, we have validated thermal sensitivity of BFO nanowires quantitatively using linear regression and analytical hierarchy process (AHP) and found close match with the experimental results. These results indicated that BFO nanowires are excellent candidates for developing high‐performance luminescence-based temperature sensors.
Graphical abstract
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Li H, An Z, Mao Q, Zuo S, Zhu W, Zhang S, Zhang C, Li E, García JDP. SOI Waveguide Bragg Grating Photonic Sensor for Human Body Temperature Measurement Based on Photonic Integrated Interrogator. NANOMATERIALS 2021; 12:nano12010029. [PMID: 35009979 PMCID: PMC8746514 DOI: 10.3390/nano12010029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 12/17/2021] [Accepted: 12/20/2021] [Indexed: 11/17/2022]
Abstract
A waveguide Bragg grating (WBG) provides a flexible way for measurement, and it could even be used to measure body temperature like e-skin. We designed and compared three structures of WBG with the grating period, etching depth, and duty cycle. The two-sided WBG was fabricated. An experimental platform based on photonic integrated interrogator was set up and the experiment on the two-sided WBG was performed. Results show that the two-sided WBG can be used to measure temperature changes over the range of 35–42 °C, with a temperature measurement error of 0.1 °C. This approach has the potential to facilitate application of such a silicon-on-insulator (SOI) WBG photonic sensor to wearable technology and realize the measurement of human temperature.
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Affiliation(s)
- Hongqiang Li
- Tianjin Key Laboratory of Optoelectronic Detection Technology and Systems, School of Electronics and Information Engineering, Tianjin 300387, China; (Z.A.); (Q.M.); (S.Z.); (C.Z.)
- Correspondence:
| | - Zhixuan An
- Tianjin Key Laboratory of Optoelectronic Detection Technology and Systems, School of Electronics and Information Engineering, Tianjin 300387, China; (Z.A.); (Q.M.); (S.Z.); (C.Z.)
| | - Quanhua Mao
- Tianjin Key Laboratory of Optoelectronic Detection Technology and Systems, School of Electronics and Information Engineering, Tianjin 300387, China; (Z.A.); (Q.M.); (S.Z.); (C.Z.)
| | - Shasha Zuo
- Textile Fiber Inspection Center, Tianjin Product Quality Inspection Technology Research Institute, Tianjin 300192, China; (S.Z.); (W.Z.)
| | - Wei Zhu
- Textile Fiber Inspection Center, Tianjin Product Quality Inspection Technology Research Institute, Tianjin 300192, China; (S.Z.); (W.Z.)
| | - Shanshan Zhang
- Tianjin Key Laboratory of Optoelectronic Detection Technology and Systems, School of Electronics and Information Engineering, Tianjin 300387, China; (Z.A.); (Q.M.); (S.Z.); (C.Z.)
- Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network Technology, Institute of Modern Optics, Nankai University, Tianjin 300071, China
| | - Cheng Zhang
- Tianjin Key Laboratory of Optoelectronic Detection Technology and Systems, School of Electronics and Information Engineering, Tianjin 300387, China; (Z.A.); (Q.M.); (S.Z.); (C.Z.)
| | - Enbang Li
- Centre for Medical Radiation Physics, University of Wollongong, Wollongong, NSW 2522, Australia;
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