Dye-Sensitized Downconversion

Wang, Zijun; Meijerink, Andries

doi:10.1021/acs.jpclett.8b00516

Cited by 44 publications

(44 citation statements)

References 35 publications

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“…Very recently, dye-sensitized downconversion luminescence (DCL) has also been fulfilled. 30 Accordingly, dye sensitization of Ln 3+ -doped nanoparticles opens great opportunities for many applications. 31−33 At present, existing studies demonstrated either increased UCL or increased excitation range, and there is still a lack of general understanding of the dye−UCNPs interactions, with many remaining problems to be solved.…”

mentioning

confidence: 99%

Ultrastrong Absorption Meets Ultraweak Absorption: Unraveling the Energy-Dissipative Routes for Dye-Sensitized Upconversion Luminescence

Xue

Wang

et al. 2018

J. Phys. Chem. Lett.

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Dye sensitization is becoming a new dimension to highly improve the upconversion luminescence (UCL) of lanthanide-doped upconversion nanoparticles (UCNPs). However, there is still a lack of general understanding of the dye-UCNPs interactions, especially the confused large mismatch between the inputs and outputs. By taking dye-sensitized NaYF:Yb/Er@NaYF:Nd UCNPs as a model system, we not only revealed the in-depth energy-dissipative process for dye-sensitized UCL but also confirmed the first ever experimental observation of the energy back transfer (EBT) in the dye-sensitized UCL. Furthermore, this energy-dissipative EBT restricted the optimal ratio of dyes to UCNP. By unearthing all of the energy loss behind the EBT, energy transfer, and energy migration processes, this paper sheds light on the further design of effective dye-sensitized nanosystems for UCL or even downconversion luminescence.

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mentioning

confidence: 99%

Ultrastrong Absorption Meets Ultraweak Absorption: Unraveling the Energy-Dissipative Routes for Dye-Sensitized Upconversion Luminescence

Xue

Wang

et al. 2018

J. Phys. Chem. Lett.

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“…More recently, organic dyes have been reported in sensitization of down-converters and not only for the solar cells themselves, in so-called dye-sensitized systems. Reported used dyes to enhance downconversion so far include UV-blue absorbing Coumarin [102], fluorescein isothiocyante [103] and a dicyanostilbene derivative [104]. This field is still in its infancy, as it requires advanced synthesis, combining several material classes in a controlled manner.…”

Section: Sensitizationmentioning

confidence: 99%

“…The Pr 3+ / Yb 3+ down-conversion pair has already been realized in Gd3(Al, Ga)5O12 [114], LiYF4[106] and YF3 [80]. There are moreover a few reports on using organic dyes to sensitize the Pr 3+ / Yb 3+ couple, most successfully done with Coumarin on the surface of NaYF4: Pr 3+ , Yb 3+ nanoparticles [102].…”

Section: The Pr +3 / Yb 3+ Down-conversion Pairmentioning

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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“…A broad range of materials have been considered as quantum cutters for PV applications, including quantum dots [13][14][15][16] , organic dyes [17][18][19][20] , rare-earth compounds [21][22][23][24] and more recently perovskite compounds 25 . These different systems perform down-conversion through different microscopic processes, such as singlet fission, resonant energy transfer, impact ionization or cascade emission (see Fig.…”

Section: Introductionmentioning

confidence: 99%

A Bayesian approach to luminescent down-conversion

Löning

Lombez

Guillemoles

et al. 2021

The Journal of Chemical Physics

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Photon conversion embodies a range of promising possibilities in pushing the theoretical Shockley-Queisser efficiency model of classical solar cells. Luminescent downconversion, despite its potential, is held back in practical applications by the difficulty of proper characterization, in no small part because of concurrent luminescent downshifting events. Recent advances have demonstrated the opportunity provided by photon correlation measurement for DC characterization. In this methodological work, we present a general method, based on Bayesian probabilities, for deriving auto-correlation functions analytically. This method is then applied to the five down-conversion mechanisms reported in the literature and successfully tested against numerical simulations. We show that the zero delay auto-correlation function can be the most direct way to demonstrate down-conversion and assess its efficiency. Our analysis offers additionally useful tools for the design of characterization experiments, and emphasizes some universal behavior valid for all reported conversion mechanisms.

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Dye-Sensitized Downconversion

Cited by 44 publications

References 35 publications

Ultrastrong Absorption Meets Ultraweak Absorption: Unraveling the Energy-Dissipative Routes for Dye-Sensitized Upconversion Luminescence

Ultrastrong Absorption Meets Ultraweak Absorption: Unraveling the Energy-Dissipative Routes for Dye-Sensitized Upconversion Luminescence

Area-selective atomic layer deposition of molybdenum oxide

A Bayesian approach to luminescent down-conversion

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