Luminescent YbVO<sub>4</sub> by atomic layer deposition

Getz, Michael N.; Hansen, Per-Anders; Ahmed, Mohamed M.; Fjellvåg, Helmer; Nilsen, Ola

doi:10.1039/c7dt00253j

Cited by 15 publications

(10 citation statements)

References 19 publications

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“…S r are directly extracted from literature reports; 6, [ 4a ] 7, [ 12 ] 8, [ 13 ] 9, [ 10 ] 10. [ 15 ]…”

Section: Resultsmentioning

confidence: 99%

“…[ 10 ] Also, dual layer‐thin films deposited by atomic layer deposition were very recently reported. [ 15 ] This approach again yielded S r that did not exhibit the standard 1/ T 2 dependence, and a S r of 3.6% K −1 at 640 K was achieved for the dual layer of YVO 4 : Eu 3+ , YVO 4 : Dy 3+ . [ 15 ]…”

Section: Introductionmentioning

confidence: 99%

“…[ 15 ] This approach again yielded S r that did not exhibit the standard 1/ T 2 dependence, and a S r of 3.6% K −1 at 640 K was achieved for the dual layer of YVO 4 : Eu 3+ , YVO 4 : Dy 3+ . [ 15 ]…”

Section: Introductionmentioning

confidence: 99%

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Ratiometric Luminescent Thermometry with Excellent Sensitivity over a Broad Temperature Range Utilizing Thermally‐Assisted and Multiphoton Upconversion in Triply‐Doped La₂O₃:Yb³⁺/Er³⁺/Nd³⁺

Gao

Busko

Katumo

et al. 2020

Advanced Optical Materials

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A ratiometric optical thermometer based on triply‐doped La2O3:Yb3+/Er3+/Nd3+ microcrystals is reported with a relative sensitivity above 1% K−1 in the entire range from 300–700 K, and is between 1.8–0.7% K−1 over the range 290–833 K. The 825 nm upconversion (UC) emission from the Nd3+ 4F5/2 level relies on thermally‐assisted energy transfer from Yb3+; thus, unusually, the near‐infrared emission increases with increasing temperature in the relevant range. More typically, the two‐photon 660 nm UC from Er3+ 4F9/2 level decreases in intensity with increasing temperature due to increasing non‐radiative rates. The variation of fluorescent intensity ratio between these emissions is amplified by their opposite responses to temperature change leading to excellent sensitivity. Concurrently, the different pathways for the temperature response in the two emitting ions enable the high sensitivity to be maintained over an atypically broad temperature range. The wide separation in wavelength means that a standard silicon‐based monochrome camera with broad (inexpensive) band pass filters is sufficient to use this phosphor for thermography. The concept of combining thermally‐activated UC with classical Stokes‐shifted emission is demonstrated to provide combined features of excellent and broad‐range sensitivity plus excellent repeatability. Materials based on this concept are very promising for optical thermometry.

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“…S r are directly extracted from literature reports; 6, [ 4a ] 7, [ 12 ] 8, [ 13 ] 9, [ 10 ] 10. [ 15 ]…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Ratiometric Luminescent Thermometry with Excellent Sensitivity over a Broad Temperature Range Utilizing Thermally‐Assisted and Multiphoton Upconversion in Triply‐Doped La₂O₃:Yb³⁺/Er³⁺/Nd³⁺

Gao

Busko

Katumo

et al. 2020

Advanced Optical Materials

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“…S1) and exhibit luminescence. Their emission intensity is further improved by post-deposition annealing, which we previously have shown for YVO 4 : Yb 3+ is due to increased crystallinity 34,36 . XRD data of the samples whose temperature sensing properties were determined in the present study is provided in Fig.…”

Section: Resultsmentioning

confidence: 51%

Sensors for optical thermometry based on luminescence from layered YVO4: Ln3+ (Ln = Nd, Sm, Eu, Dy, Ho, Er, Tm, Yb) thin films made by atomic layer deposition

Getz

Nilsen

Hansen

2019

Sci Rep

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Below the Earth’s crust, temperatures may reach beyond 600 K, impeding the batteries used to power conventional thermometers. Fluorescence intensity ratio based temperature probes can be used with optical fibers that can withstand these conditions. However, the probes tend to exhibit narrow operating ranges and poor sensitivity above 400 K. In this study, we have investigated single and dual layered YVO 4 : Ln 3+ (Ln = Nd, Sm, Eu, Dy, Ho, Er, Tm, Yb) thin films (100–150 nm) for use in fluorescence intensity ratio based temperature sensors in the 300–850 K range. The type of lanthanide emission can be fine-tuned by adjusting the thickness of each layer, and the layered structure allows for emission from otherwise incompatible lanthanide pairs. This novel multi-layered approach enables high sensitivity over a broad temperature range. The highest relative sensitivity was achieved for a dual layered YVO 4 : Eu 3+ /YVO 4 : Dy 3+ sample, exhibiting a maximum sensitivity of 3.6% K −1 at 640 K. The films were successfully deposited on all tested substrates (silicon, iron, aluminum, glass, quartz, and steel), and can be applied homogenously to most surfaces without the use of binders. The films are unaffected by water, enabling non-contact temperature sensing in water, where IR thermometers are not an option.

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“…for this, often d0-oxides such as CaMoO4 used in the current work or various vanadates [97][98][99]. An important parameter of the chosen host matrix in addition to the band gap/ absorbing energy range and absorption strength, is its maximum phonon energies.…”

Section: Sensitizationmentioning

confidence: 99%

Area-selective atomic layer deposition of molybdenum oxide

Kvalvik

Borgersen

Hansen

et al. 2020

Journal of Vacuum Science &Amp; Technology A: Vacuum, Surfaces, and Films

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have supervised the work.Per-Anders and Ola, there is no way this thesis could be finished without you. Per-Anders, you are truly an excited person and I have never met anyone so passionate about his or her own field as you. That passion is contagious, and so is your cheerfulness and joy to share your knowledge. Ola, you are the most understanding and supporting person on the planet. Your response time is amazingly fast and you take all stupid and not so stupid questions seriously. You see every find as an opportunity, and that is great. When I saw an ALD system not behaving, only depositing on certain surfaces, you saw the chance to explore an area-selective system. I am so deeply grateful to both of you.I am also very grateful to Øystein Evandt and his insight on Design of Experiments (DoE), that he is always more than willing to share. Moreover, a special thank you goes to Dr. David Wragg for his aid with Pawley refinements and to my co-author on Paper I, Jon Borgersen. Making the world's second smallest university logo would not have been possible without you. Augustinas Galeckas, co-author on Paper III, has my sincere gratitude for a swift response and aiding with various optical measurements.Thank you all.During my many years at NAFUMA I have had a lot of nice colleagues and even shared office with many of you. I have probably been of the more talkative kind of office mate, but I think most of you managed ok. Thanks for making work-life good. Special thanks go to Kristian x2, Leva, Michael and Katja, for particularly good company.The largest thank you goes to the people surrounding me. Luckily, that is a lot of people and I am so blessed to have each and every one of you. I am looking forward to times where we can all gather up for large family dinners again, although fitting 25+ people in our house is kind-of tight. Special thanks go to my parents for their endless support and babysitting. You have thought me persistence, perfectionism and hard work, and always taken for granted that I would be able to reach my goals.Thanks for having that belief, also at times where I lost it myself. A huge thank you goes to my in-laws for cheering and babysitting, including my always calm, positive and caring sister-in-law. I also want to thank the engineers in my family, particularly my grandfather, for inspiring me towards a scientific career. Kaja also deserves a huge thank you, simply for existing. Thanks for being my best friend since we started schooland staying with me until now when I finally finish my formal education.Many times during this process, I have been told that pursuing a PhD whilst having three kids, is something you just don't do. It pisses of my inner feminist, but they do have a point, combining sleepless iv nights, dreadful pregnancies and having to make it home before the kindergarten closes whilst pursuing a phd, is not always a primrose path. My favorite counterargument for this is that children give you the best possible mental timeouts from your work. And trust me, in this process, you need m...

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Luminescent YbVO₄ by atomic layer deposition

Cited by 15 publications

References 19 publications

Ratiometric Luminescent Thermometry with Excellent Sensitivity over a Broad Temperature Range Utilizing Thermally‐Assisted and Multiphoton Upconversion in Triply‐Doped La₂O₃:Yb³⁺/Er³⁺/Nd³⁺

Ratiometric Luminescent Thermometry with Excellent Sensitivity over a Broad Temperature Range Utilizing Thermally‐Assisted and Multiphoton Upconversion in Triply‐Doped La₂O₃:Yb³⁺/Er³⁺/Nd³⁺

Sensors for optical thermometry based on luminescence from layered YVO4: Ln3+ (Ln = Nd, Sm, Eu, Dy, Ho, Er, Tm, Yb) thin films made by atomic layer deposition

Area-selective atomic layer deposition of molybdenum oxide

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Luminescent YbVO4 by atomic layer deposition

Cited by 15 publications

References 19 publications

Ratiometric Luminescent Thermometry with Excellent Sensitivity over a Broad Temperature Range Utilizing Thermally‐Assisted and Multiphoton Upconversion in Triply‐Doped La2O3:Yb3+/Er3+/Nd3+

Ratiometric Luminescent Thermometry with Excellent Sensitivity over a Broad Temperature Range Utilizing Thermally‐Assisted and Multiphoton Upconversion in Triply‐Doped La2O3:Yb3+/Er3+/Nd3+

Sensors for optical thermometry based on luminescence from layered YVO4: Ln3+ (Ln = Nd, Sm, Eu, Dy, Ho, Er, Tm, Yb) thin films made by atomic layer deposition

Area-selective atomic layer deposition of molybdenum oxide

Contact Info

Product

Resources

About

Luminescent YbVO₄ by atomic layer deposition

Ratiometric Luminescent Thermometry with Excellent Sensitivity over a Broad Temperature Range Utilizing Thermally‐Assisted and Multiphoton Upconversion in Triply‐Doped La₂O₃:Yb³⁺/Er³⁺/Nd³⁺

Ratiometric Luminescent Thermometry with Excellent Sensitivity over a Broad Temperature Range Utilizing Thermally‐Assisted and Multiphoton Upconversion in Triply‐Doped La₂O₃:Yb³⁺/Er³⁺/Nd³⁺