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Wide-Range Temperature Sensing using Highly Sensitive Green-Luminescent ZnO and PMMA-ZnO Film as a Non-Contact Optical Probe


  • The authors acknowledge the financial support from Department of Science and Technology (DST) through Nanomission. The authors also acknowledge Dr. Enda McGlynn and Dr. Balaram Sahoo for their valuable comments and suggestions. PMMA=poly(methyl methacrylate).


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The heat is on: A variation of green luminescence intensity of ZnO microcrystals embedded in poly(methyl methacrylate) is observed. This material is used for non-contact thermometer, which has an accuracy of 0.1 K over a temperature range of 83–474 K. Scale bars: 10 μm.