Upconversion luminescence enhancement of NaYF4:Yb3+,Er3+ nanocrystals induced by the surface plasmon resonance of nonstoichiometric WO2.72 semiconductor

Zhang, Hailu; Yang, Zhengwen; Ma, Yingjin; Qiu, Jianbei; Song, Zhiguo

doi:10.1111/jace.15753

Cited by 11 publications

(6 citation statements)

References 22 publications

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“…(10, 8, and 12 times) in the luminescence of UCNPs at 525, 542, and 660 nm, respectively. [36] This may be attributed to the strong LSPR effect that originated from WO 2.72 . Li's group developed the UCNPs/WO 3−x hybrid, which has a stronger upconversion emission.…”

Section: Photoluminescence Modulationmentioning

confidence: 99%

Plasmonic Oxygen Defects in MO₃₋_x (M = W or Mo) Nanomaterials: Synthesis, Modifications, and Biomedical Applications

Zhou

Liu

et al. 2021

Adv Healthcare Materials

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Nanomedicine is a promising technology with many advantages and provides exciting opportunities for cancer diagnosis and therapy. During recent years, the newly developed oxygen-deficiency transition metal oxides MO 3−x (M = W or Mo) have received significant attention due to the unique optical properties, such as strong localized surface plasmon resonance (LSPR) , tunable and broad near-IR absorption, high photothermal conversion efficiency, and large X-ray attenuation coefficient. This review presents an overview of recent advances in the development of MO 3−x nanomaterials for biomedical applications. First, the fundamentals of the LSPR effect are introduced. Then, the preparation and modification methods of MO 3−x nanomaterials are summarized. In addition, the biological effects of MO 3−x nanomaterials are highlighted and their applications in the biomedical field are outlined. This includes imaging modalities, cancer treatment, and antibacterial capability. Finally, the prospects and challenges of MO 3−x and MO 3−x -based nanomaterial for fundamental studies and clinical applications are also discussed.

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Section: Photoluminescence Modulationmentioning

confidence: 99%

Plasmonic Oxygen Defects in MO₃₋_x (M = W or Mo) Nanomaterials: Synthesis, Modifications, and Biomedical Applications

Zhou

Liu

et al. 2021

Adv Healthcare Materials

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“…44 When NaYF 4 :Yb 3+ ,Er 3+ was coupled with urchinlike WO 2.72 , the UCL was enhanced by 10, 8, and 12 times at 525, 542, and 660 nm, respectively. 48 Sandwichtype layered film composed of Cs x WO 3 , NaYF 4 , and NaYF 4 :Yb 3+ ,Er 3+ showed that the UCL enhancement depends on the thickness of the UCNPs and Cs x WO 3 layers, and the optimal enhancement of UCL reached 144 times. 45 The LSPR resonance absorption of MWO 3 is affected by the type, morphology, and size of MWO 3 , and the different MWO 3 / UCNP systems have different enhancement effects and different enhancement mechanisms.…”

Section: Introductionmentioning

confidence: 95%

“…Enhanced UCL was realized by building layered structures W 18 O 49 /NaYF 4 :Yb 3+ ,Er 3+ and applying them to improve photocatalysis . When NaYF 4 :Yb 3+ ,Er 3+ was coupled with urchinlike WO 2.72 , the UCL was enhanced by 10, 8, and 12 times at 525, 542, and 660 nm, respectively . Sandwich-type layered film composed of Cs x WO 3 , NaYF 4 , and NaYF 4 :Yb 3+ ,Er 3+ showed that the UCL enhancement depends on the thickness of the UCNPs and Cs x WO 3 layers, and the optimal enhancement of UCL reached 144 times .…”

Section: Introductionmentioning

confidence: 99%

High-Performance Perovskite Solar Cells Based on NaCsWO₃@ NaYF₄@NaYF₄:Yb,Er Upconversion Nanoparticles

Sun

Gao

et al. 2021

ACS Appl. Mater. Interfaces

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Extending photoelectric response to the near-infrared (NIR) region using upconversion luminescent (UCL) materials is one promising approach to obtain high-efficiency perovskite solar cells (PSCs). However, challenges remain due to the shortage of highly efficient UCL materials and device structure. NaCsWO3 nanocrystals exhibit near-infrared absorption arising from the local surface plasmon resonance (LSPR) effect, which can be used to boost the UCL of rare-earth-doped upconversion nanoparticles (UCNPs). In this study, using NaCsWO3 as the LSPR center, NaCsWO3@NaYF4@NaYF4:Yb,Er nanoparticles were synthesized and the UCL intensity could be enhanced by more than 124 times when the amount of NaCsWO3 was 2.8 mmol %. Then, such efficient UCNPs were not only doped into the hole transport layer but also used to modify the perovskite film in PSCs, resulting in the highest power conversion efficiency (PCE) reaching 18.89% (that of the control device was 16.01% and the PCE improvement was 17.99%). Possible factors for the improvement of PSCs were studied and analyzed. It is found that UCNPs can broaden the response range of PSCs to the NIR region due to the LSPR-enhanced UCL and increase the visible light reabsorption of PSCs due to the scattering and reflection effect, which generate more photocurrent in PSCs. In addition, UCNPs modify the perovskite film by effectively filling the holes and gaps at the grain boundary and eliminating the perovskite surface defects, which lead to less carrier recombination and then effectively improve the performance of PSC devices.

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“…Their results provide a new strategy for improving luminescent materials and highlight the novel application in photonics. Yang and his co-workers prepared the urchin-like WO 2.72 which showed the LSPR in the near-infrared region and realized the increase of the UC luminescence due to the WO 2.72 film-enhanced excitation field [ 165 ]. Gao and his co-workers prepared core-shell hybrid structure Cu 1.8 S@NaYF 4 : X%Yb 3+ @NaYF 4 : Yb 3+ , Er 3+ , and they further enhanced the LSPR-coupled UC luminescence by adjusting the intermediate spacer NaYF 4 : X%Yb 3+ and Yb 3+ concentration.…”

Section: New Strategiesmentioning

confidence: 99%

Modulated Luminescence of Lanthanide Materials by Local Surface Plasmon Resonance Effect

et al. 2021

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Lanthanide materials have great applications in optical communication, biological fluorescence imaging, laser, and so on, due to their narrow emission bandwidths, large Stokes’ shifts, long emission lifetimes, and excellent photo-stability. However, the photon absorption cross-section of lanthanide ions is generally small, and the luminescence efficiency is relatively low. The effective improvement of the lanthanide-doped materials has been a challenge in the implementation of many applications. The local surface plasmon resonance (LSPR) effect of plasmonic nanoparticles (NPs) can improve the luminescence in different aspects: excitation enhancement induced by enhanced local field, emission enhancement induced by increased radiative decay, and quenching induced by increased non-radiative decay. In addition, plasmonic NPs can also regulate the energy transfer between two close lanthanide ions. In this review, the properties of the nanocomposite systems of lanthanide material and plasmonic NPs are presented, respectively. The mechanism of lanthanide materials regulated by plasmonic NPs and the scientific and technological discoveries of the luminescence technology are elaborated. Due to the large gap between the reported enhancement and the theoretical enhancement, some new strategies applied in lanthanide materials and related development in the plasmonic enhancing luminescence are presented.

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Upconversion luminescence enhancement of NaYF₄:Yb³⁺,Er³⁺ nanocrystals induced by the surface plasmon resonance of nonstoichiometric WO_2.72 semiconductor

Cited by 11 publications

References 22 publications

Plasmonic Oxygen Defects in MO₃₋_x (M = W or Mo) Nanomaterials: Synthesis, Modifications, and Biomedical Applications

Plasmonic Oxygen Defects in MO₃₋_x (M = W or Mo) Nanomaterials: Synthesis, Modifications, and Biomedical Applications

High-Performance Perovskite Solar Cells Based on NaCsWO₃@ NaYF₄@NaYF₄:Yb,Er Upconversion Nanoparticles

Modulated Luminescence of Lanthanide Materials by Local Surface Plasmon Resonance Effect

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Upconversion luminescence enhancement of NaYF4:Yb3+,Er3+ nanocrystals induced by the surface plasmon resonance of nonstoichiometric WO2.72 semiconductor

Cited by 11 publications

References 22 publications

Plasmonic Oxygen Defects in MO3−x (M = W or Mo) Nanomaterials: Synthesis, Modifications, and Biomedical Applications

Plasmonic Oxygen Defects in MO3−x (M = W or Mo) Nanomaterials: Synthesis, Modifications, and Biomedical Applications

High-Performance Perovskite Solar Cells Based on NaCsWO3@ NaYF4@NaYF4:Yb,Er Upconversion Nanoparticles

Modulated Luminescence of Lanthanide Materials by Local Surface Plasmon Resonance Effect

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Product

Resources

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Upconversion luminescence enhancement of NaYF₄:Yb³⁺,Er³⁺ nanocrystals induced by the surface plasmon resonance of nonstoichiometric WO_2.72 semiconductor

Plasmonic Oxygen Defects in MO₃₋_x (M = W or Mo) Nanomaterials: Synthesis, Modifications, and Biomedical Applications

Plasmonic Oxygen Defects in MO₃₋_x (M = W or Mo) Nanomaterials: Synthesis, Modifications, and Biomedical Applications

High-Performance Perovskite Solar Cells Based on NaCsWO₃@ NaYF₄@NaYF₄:Yb,Er Upconversion Nanoparticles