A novel wide temperature range and multi-mode optical thermometer based on bi-functional nanocrystal-doped glass ceramics

Cai, Zhenlu; Kang, Shiliang; Huang, X. Y.; Song, Xiaoqian; Xiao, Xiudi; Qiu, Jianrong; Dong, Guoping

doi:10.1039/c8tc03642j

Cited by 54 publications

(20 citation statements)

References 36 publications

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“…To confirm the appropriate heat treatment temperature, the DSC is conducted and shown in the previous research. [ 25 ] It can be seen that the glass transition temperature and the initial crystal evolution temperature are 812 and 940 K, respectively, indicating the good thermal stability of PG–Tm/Cr. In addition, the two exothermic peaks corresponding to the crystallization temperatures are 969 and 986 K, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…The precursor glasses (PGs) with the molar composition of 45SiO 2 –22Al 2 O 3 –16Na 2 CO 3 –9NaF–8YF 3 – x TmF 3 – y Cr 2 O 3 ( x = 0–2.0, y = 0–0.2) were fabricated by the conventional melt‐quenching technique. [ 22–25 ] Briefly, the raw materials including SiO 2 (99.99%), Al 2 O 3 (99.99%), Na 2 CO 3 (99.99%), NaF (99.99%), YF 3 (99.99%), TmF 3 (99.99%), and Cr 2 O 3 (99.99%) were mixed in the corundum crucible and melt at 1550 °C for 1 h. The glass melt was quenched on the stainless steel plate at 300 °C, with subsequent annealing at 500 °C for 4 h to release internal stress. The resulted PG was then heat treated at 670 °C for 2 h within a heating rate of 5 °C min −1 to obtain dual‐phase GC.…”

Section: Methodsmentioning

confidence: 99%

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Tm³⁺/Cr³⁺ Codoped Dual‐Phase Transparent Glass‐Ceramics for Light Conversion in Photosynthesis

Chen

Cai

Pan

et al. 2021

Advanced Photonics Research

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To improve the utilization efficiency of chlorophyll to sunlight, Tm3+/Cr3+ codoped dual‐phase glass‐ceramics are successfully fabricated as a dual‐light conversion material by the conventional melt‐quenching technique with subsequent heat treatment. Exploiting the radius difference in atomic size, Tm3+ and Cr3+ ions have been rationally designed entering into the NaYF4 and NaAlSiO4 crystal phase, respectively, to avoid detrimental energy quenching. The resulted dual‐phase glass‐ceramics exhibit a great emission enhancement compared to the precursor glass. No obvious lifetime degradation in the codoped glass‐ceramic further proves the successful incorporation of Tm3+ and Cr3+ in distinguished crystalline phases. Utilizing the dual‐phase glass‐ceramics, the useless sunlight can be converted into the desired red/blue region and reabsorbed by the chlorophyll. The Tm3+ ions convert ultraviolet light into the blue region, and the Cr3+ ions transfer green light to the red emission. With the utilization of Tm3+/Cr3+ codoped dual‐phase glass‐ceramics in the greenhouse, the photosynthesis process can be promoted, and furthermore, the production of crops can be improved, indicating the potential applications in the field of green agriculture.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Tm³⁺/Cr³⁺ Codoped Dual‐Phase Transparent Glass‐Ceramics for Light Conversion in Photosynthesis

Chen

Cai

Pan

et al. 2021

Advanced Photonics Research

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“…It should be pointed out that the optical gain is closely related to the crystal field, which depends on the crystallinity of glass host. [ 45,46 ] Since the active ions, Tm 3+ , preferentially enter into the nanocrystals with strong crystal field after crystallization, which provides a favorable coordination environment for Tm 3+ , the optical gain is greatly enhanced. Furthermore, as evidenced by the XRD results, the higher thermal activation temperature is conducive to the achievement of better crystallinity, thus resulting in larger optical gain in GC microspheres.…”

Section: Resultsmentioning

confidence: 99%

Enhanced 2 µm Mid‐Infrared Laser Output from Tm³⁺‐Activated Glass Ceramic Microcavities

Kang

Ouyang

Yang

et al. 2020

Laser & Photonics Reviews

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Transparent glass ceramics (GCs) consisting of an homogeneous glass phase and a well-dispersed crystal phase are considered as ideal optical gain materials potentially applied in optoelectronic devices due to the combination of facile processability of glass and the intense crystal field of nanocrystals. Here, a heat-induced nanocrystal-in-glass method is employed to integrate the active ions Tm 3+ into Bi 2 Te 4 O 11 nanocrystals with an intense crystal field to realize an enhanced microlaser output. This strategy endows the efficient tellurate GC microcavity laser operating at ≈2 µm. Compared with the laser properties of as-prepared glass microcavities, the pump threshold (260 µW) is as low as less than a quarter and the slope efficiency (0.0296%) is 5.5 times higher. Furthermore, by carefully engineering the heat treatment temperature and duration, the crystal size and distribution can be precisely controlled. Thus, the Rayleigh scattering loss that is detrimental to quality (Q) factor is effectively suppressed and the GC microcavities with high Q factors up to 10 5 are successfully obtained. This work provides useful insight on the development of optical functional materials and expands the practical applications of GC microcavities in various optoelectronic fields.

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“…This approach is currently exploited by the selective incorporation of RE, Ln 3+ or TM ions into different NCs. 89 For instance, Ln 3+ This is the author's peer reviewed, accepted manuscript. However, the online version of record will be different from this version once it has been copyedited and typeset.…”

Section: Please Cite This Article Asmentioning

confidence: 99%

Transition metals as optically active dopants in glass-ceramics

Cormier

Zhou

2020

Applied Physics Letters

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Over the past decades, glass-ceramics doped with transition metals have become promising materials for the development of active and passive optical functional devices, interesting a wide variety of commercial applications due to their unique properties. In this Perspective paper, the intrinsic advantages of these composite materials are outlined and we provide an overview of recent and ongoing progress and state-of-the-art knowledges of the main applications: broadband amplifiers, tunable lasers, long persistent phosphors, noninvasive optical temperature sensors, saturable absorbers, high IR emitters and thermal shock-resistant color filters. Finally, the today challenges and future prospects are exposed to provide guidelines for future research.

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A novel wide temperature range and multi-mode optical thermometer based on bi-functional nanocrystal-doped glass ceramics

Abstract: A multi-mode optical thermometer was developed using novel nanocomposite glass ceramics, containing bi-functional NaYF4:Yb3+/Nd3+ and NaAlSiO4:Cr3+ nanocrystals.

Cited by 54 publications

References 36 publications

Tm³⁺/Cr³⁺ Codoped Dual‐Phase Transparent Glass‐Ceramics for Light Conversion in Photosynthesis

Tm³⁺/Cr³⁺ Codoped Dual‐Phase Transparent Glass‐Ceramics for Light Conversion in Photosynthesis

Enhanced 2 µm Mid‐Infrared Laser Output from Tm³⁺‐Activated Glass Ceramic Microcavities

Transition metals as optically active dopants in glass-ceramics

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A novel wide temperature range and multi-mode optical thermometer based on bi-functional nanocrystal-doped glass ceramics

Abstract: A multi-mode optical thermometer was developed using novel nanocomposite glass ceramics, containing bi-functional NaYF4:Yb3+/Nd3+ and NaAlSiO4:Cr3+ nanocrystals.

Cited by 54 publications

References 36 publications

Tm3+/Cr3+ Codoped Dual‐Phase Transparent Glass‐Ceramics for Light Conversion in Photosynthesis

Tm3+/Cr3+ Codoped Dual‐Phase Transparent Glass‐Ceramics for Light Conversion in Photosynthesis

Enhanced 2 µm Mid‐Infrared Laser Output from Tm3+‐Activated Glass Ceramic Microcavities

Transition metals as optically active dopants in glass-ceramics

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Tm³⁺/Cr³⁺ Codoped Dual‐Phase Transparent Glass‐Ceramics for Light Conversion in Photosynthesis

Tm³⁺/Cr³⁺ Codoped Dual‐Phase Transparent Glass‐Ceramics for Light Conversion in Photosynthesis

Enhanced 2 µm Mid‐Infrared Laser Output from Tm³⁺‐Activated Glass Ceramic Microcavities