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Open AccessArticle

A Heat-Stimulated Luminous Fiber Using Heat-Sensitive Green TF-G Pigment

College of Textile and Clothing, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
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Materials 2018, 11(3), 425; https://doi.org/10.3390/ma11030425
Received: 1 February 2018 / Revised: 7 March 2018 / Accepted: 12 March 2018 / Published: 15 March 2018
In this study, we fabricated a heat-stimulated luminous fiber (HSLF) by wet spinning. The HSLF consists of Sr2ZnSi2O7: Eu2+, Dy3+ (SZSO), Y2O2S: Eu3+, Mg2+, Ti4+ (YOS), and heat-sensitive green TF-G pigment (HSGP). SZSO and YOS serve as a source of luminescence to yield a long afterglow system. HSGP is a heat-stimulating agent which develops the link between luminescence and temperature for HSLF. The luminescence of the HSLF is dull below 30 °C, but vivid above 30 °C. The luminescence of HSLFs can be stimulated by low heat (human body temperature). Emission spectra were recorded at 20 °C and 30 °C to investigate the heat-stimulated luminescent performance of HSLFs. HSLF is a smart material which can discern the exciting light to change color because of the photo-thermal effect. This characteristic provides optimum conditions for SZSO and YOS to store energy. The results demonstrated that most luminescence from SZSO and YOS could be absorbed by HSGP at 20 °C, but the luminescence could be liberated at 30 °C. The heat-stimulated phenomenon could also be verified by afterglow and the naked eye. View Full-Text
Keywords: rare earth; luminescence; thermochromism; luminous fiber; heat sense rare earth; luminescence; thermochromism; luminous fiber; heat sense
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MDPI and ACS Style

Jin, Y.; An, X.; Ge, M. A Heat-Stimulated Luminous Fiber Using Heat-Sensitive Green TF-G Pigment. Materials 2018, 11, 425.

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