Developing Smart Temperature Sensing Window Based on Highly Transparent Rare-Earth Doped Yttrium Zirconate Ceramics

Abstract

Lanthanide-ion-based thermometers have been widely researched and utilized as contactless temperature sensing materials. Cooperating with the unique optical and excellent physical properties of transparent ceramics, Er 3+ /Yb 3+ co-doped Y 2 Zr 2 O 7 transparent ceramics were successfully fabricated as temperature sensing window materials. Homogeneous distribution of elements inside samples together with high transmittance (nearly 73%) makes it possible as an observing window. Upon excitation at 980 nm, room-temperature luminescent performance was systemically researched for explaining the energy transfer mechanism between Yb 3+ and Er 3+ ions. The FIR method was introduced for thermally coupled energy levels to realize temperature sensing ability. Detecting sensitivity at different temperatures was also calculated (1.24% K −1 at 303 K), suggesting that Yb 3+ , Er 3+ :Y 2 Zr 2 O 7 are adequate for high sensitivity temperature detecting application. It is also investigated that the concentration of Yb 3+ ions not only affects the emission color at room-temperature but also has influence on the sensitivity of temperature and 10 mol % Yb 3+ , 2 mol % Er 3+ :Y 2 Zr 2 O 7 was found to be the most sensitive one. A demonstration experiment was also carried out to validate its application as a smart temperature sensing window. These results suggested that Yb 3+ , Er 3+ :Y 2 Zr 2 O 7 transparent ceramics can have potential for temperature monitoring applications, especially as novel window materials under extreme circumstances.

Thermometric properties of Na 2Y 2TeB 2O 10:Tb 3+ green phosphor based on fluorescence/excitation intensity ratio

“…Temperature is a vital parameter in industrial and civil areas, which makes developing temperature-detecting technology significant [1][2][3]. The shortcomings of conventional contact thermometers include environmental restrictions and long response time, which gradually cannot meet the actual usage requirements [4][5][6]. Hereby, Ghahrizjani et al [7] and Cheng et al [8] have paid much research to noncontact temperature-detecting technologies.…”

Tetra-Nuclear Cluster-Based Lanthanide Metal–Organic Frameworks as White Phosphor, Information Encryption, Self-Calibrating Thermometers, and Fe2+ Sensors

“…To overcome these limitations, researchers are working on non-contact thermometers. Light source-based self-calibrated temperature measurement technology is becoming popular due to its non-contact, fast response, and it is considered to be one of the most promising methods due to its advantages of high accuracy, high reliability, and short response time …”

“…Light source-based self-calibrated temperature measurement technology is becoming popular due to its noncontact, fast response, and it is considered to be one of the most promising methods due to its advantages of high accuracy, high reliability, and short response time. 18 The right amount of ferrous iron (Fe 2+ ) is extremely important for human health; however, Fe 2+ deficiency will lead to anemia and thus affect health, but excessive intake or mistaken intake of Fe 2+ may also lead to cirrhosis, cartilage calcification, osteoporosis, epilepsy, diabetes, and so on. The excessive presence of Fe 2+ in the water environment will affect water quality.…”

Dy3+‐doped Y2Zr2O7 highly transparent ceramics for ultraviolet excitable warm white light‐emitting applications

“…[17][18][19] In particular, the representative Y 2 Zr 2 O 7 (YZO) ceramics with a relatively lower phonon energy of about 700 cm −1 , which is lower than that of the state-of-the-art YAG transparent matrix (850 cm −1 ), could lead to a high photoluminescence efficiency, making them are exciting potential for photonic applications such as scintillators and optical gain materials. 20,21 Although some original works about lanthanide-doped YZO transparent ceramics have been reported and demonstrated their lightemitting applications, [21][22][23][24][25] there is no warm white emitting converter excited by a UV light device in YZO host have been reported so far.…”