Journal of Luminescence最新文献

{"title":"Promoted UVB upconverting luminescence of Pr-Gd coactivated phosphors by optimizing the valance of sensitizer","authors":"Yiming Nie ,&nbsp;Ming Cheng ,&nbsp;Xiaoyan Chen ,&nbsp;Sanlin Liu ,&nbsp;Yang Zhao ,&nbsp;Chenlong Dong ,&nbsp;Dajian Wang ,&nbsp;Jingjing Chen ,&nbsp;Zhiyong Mao","doi":"10.1016/j.jlumin.2024.121035","DOIUrl":"10.1016/j.jlumin.2024.121035","url":null,"abstract":"<div><div>Narrow-band ultraviolet B (UVB, 280–320 nm) radiation device shows promising applications in photobiology and medical science, driving the rapid development of UVB phosphors. In this work, a series of Pr-Gd coactivated LiLnSiO₄ (Ln = Y, Lu, La) narrow-band UVB upconverting phosphors, based on the typical two-photon absorption process of Pr³⁺ and the effective energy transfer from Pr³⁺ to Gd³⁺, were synthesized by the conventional high-temperature solid-phase method under different sintering atmospheres. Promoted UVB upconverting luminescence was recorded for the sample synthesized at reducing atmosphere, which was ascribed to the increased amount of Pr³⁺ sensitizer resulting from the reducing sintering atmosphere. The variation of Pr³⁺ sensitizer amount for the samples obtained at different atmosphere was confirmed by the X-ray photoelectron spectroscopy (XPS) and Electron paramagnetic resonance (EPR) spectra, associating with the analysis of upconverting/downconverting luminescence properties of Pr³⁺ sensitizer. The research results derived from this work might provide useful clues in exploring high performance Pr-Gd coactivated phosphors.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"279 ","pages":"Article 121035"},"PeriodicalIF":3.3,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143144765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High-performance red quantum dot light-emitting diodes via exciton harvesting based on all-organic charge transport layers","authors":"Shiyi Xie ,&nbsp;Boyu Jiang ,&nbsp;Yu Yang ,&nbsp;Haolin Li ,&nbsp;Aisima Maimaitimin ,&nbsp;Tong Zhang ,&nbsp;Boyu Zhou ,&nbsp;Mingming Zhou ,&nbsp;Yanping Wang ,&nbsp;Xiaoyun Mi ,&nbsp;Xiuling Liu","doi":"10.1016/j.jlumin.2024.121036","DOIUrl":"10.1016/j.jlumin.2024.121036","url":null,"abstract":"<div><div>The performance of quantum dot light-emitting diodes (QLEDs) is typically constrained by several factors, including carrier injection imbalance and Auger recombination. Apart from exciton collection, the all-organic charge transport layers (CTLs) structure has been proven as an effective strategy to address the aforementioned issues. Herein, we present a novel red QLED incorporating all-organic CTLs composed of a hole transport layer (HTL) consisting of the green small molecule, bis(2-phenylpyridinato-C2,N) (acetylacetonate)iridium(III) (Ir(ppy)₂(acac)), doped poly [(9,9 dioctylfluorenyl-2,7-diyl)-alt-(4,4’-(N-(4-butylphenyl)] (TFB) and poly (9-vinylcarbazole) (PVK). In this ingeniously designed architecture, electrons that leak into the HTL can recombine with holes, facilitating efficient energy harvesting by Ir(ppy)₂(acac). Subsequently, the harvested energy is transferred to the neighboring quantum dot (QD) layer via the Förster resonance energy transfer (FRET) mechanism, thus improving the device performance. The top-performing QLED with a doping concentration of 5 wt% achieves an unprecedented external quantum efficiency (EQE) of 16.2 %, current efficiency (CE) of 21.5 cd A⁻¹ and luminance of 96039 cd m⁻². Furthermore, the device exhibits good stability and minimal efficiency roll-off.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"279 ","pages":"Article 121036"},"PeriodicalIF":3.3,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143144764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unravelling the effect of interstitial oxygen on the photoluminescence of Ce3+-doped Ca2BO3Cl and Ca3(BO3)2","authors":"Aynigar Ablat ,&nbsp;Min Yin ,&nbsp;Shihang Zhou ,&nbsp;Aierken Sidike","doi":"10.1016/j.jlumin.2024.121038","DOIUrl":"10.1016/j.jlumin.2024.121038","url":null,"abstract":"<div><div>Ce³⁺-doped Ca₂BO₃Cl and Ca₃(BO₃)₂ are presented as promising phosphors for solid-state white light illumination, display, phototherapy, etc. Herein, we combined experimental and first-principles calculations to study the photoluminescence properties of Ce³⁺-doped Ca₂BO₃Cl and Ca₃(BO₃)₂ under different preparation environment. The results show that the co-doped Na ⁺ ions have little effect on the luminescence of Ce³⁺ ions doped Ca₂BO₃Cl and Ca₃(BO₃)₂. However, the luminous intensity of Ce³⁺/Na⁺ ions co-doped Ca₂BO₃Cl greatly decreased with increasing oxidizing atmosphere. When sintering at 800 °C in air, the luminescence intensity was more than 10 times lower than that in a reducing atmosphere (5 % H₂ + 95 % N₂), whereas the luminescence intensity of Ce³⁺-doped Ca₃(BO₃)₂ hardly changed. First-principles calculations revealed that, within an enhanced oxidizing atmosphere, the formation energy of interstitial oxygen (O_<em>i</em>) in Ca₂BO₃Cl:Ce³⁺,Na⁺ decreased from 2.84 to 0.31 eV, whereas in Ca₃(BO₃)₂:Ce³⁺, it decreased from 2.11 to 1.51 eV. The small formation energy (0.31 eV) of interstitial oxygen (O_<em>i</em>) in an oxidation atmosphere may lead to the formation of interstitial oxygen defects in Ca₂BO₃Cl:Ce³⁺,Na⁺, which may result in the luminescence quenching of Ce³⁺ ions in Ca₂BO₃Cl:Ce³⁺,Na⁺ ((Ce³⁺)∗+O⁰→Ce⁴⁺+O¹⁻) and cause a decrease in the luminescence intensity. The study of the difference in resistance to oxidation between Ce³⁺-doped Ca₂BO₃Cl and Ca₃(BO₃)₂ is highly important for further improving current luminescent materials and developing new functional materials.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"279 ","pages":"Article 121038"},"PeriodicalIF":3.3,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143145560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prediction and explanation of the self-reduction of Eu3+ → Eu2+ and Mn4+ → Mn2+ using Site Occupancy Theory (SOT)","authors":"Chenglong Xia,&nbsp;Xiao He,&nbsp;Bingyang Zeng,&nbsp;Jiahui Yang,&nbsp;Chunmiao Cui,&nbsp;Xiaoguang Liu,&nbsp;Ling Li","doi":"10.1016/j.jlumin.2024.121033","DOIUrl":"10.1016/j.jlumin.2024.121033","url":null,"abstract":"<div><div>This study introduces a novel application of Site Occupancy Theory (SOT) to predict and elucidate the self-reduction processes of doped ions. The stable valence state of doped ions at the cationic site is determined by analyzing the deviations in bond energy when these ions occupy specific sites within the matrix. Self-reduction occurs when the bond energy of the ion in a lower oxidation state is closer to that of the matrix cation than in a higher oxidation state. To provide experimental validation for the application of SOT in predicting and explaining self-reduction, a series of compounds were synthesized using a high-temperature solid-state method. These include Lithium Calcium Borate (Li₄Ca₂B₈O₁₆:Eu) and Sodium Yttrium Tungstate (Na₅Y(WO₄)₄:Mn). Synthesis was carried out under different atmospheric conditions to investigate their impact on the self-reduction behavior of doped ions. Photoluminescence (PL) spectra were analyzed from samples prepared in varying atmospheres, confirming that self-reduction occurs from Eu³⁺ to Eu²⁺ in Li₄Ca₂B₈O₁₆:Eu and from Mn⁴⁺ to Mn²⁺ in Na₅Y(WO₄)₄:Mn under air. Additionally, Li₄Ca₂B₈O₁₆:Eu synthesized under a reducing atmosphere demonstrates significant potential for applications in White Light Emitting Diodes (W-LEDs). Likewise, Na₅Y(WO₄)₄:Mn synthesized under air conditions exhibits promising applications in photodynamic therapy (PDT) and photorejuvenation (DPL). In conclusion, the experimental results support the effectiveness of <span>SOT</span> in predicting the self-reduction behavior of doped ions within a matrix, providing insights into the conditions under which these processes occur. The ability to predict self-reduction could accelerate the development of new materials and reduce reliance on extensive trial-and-error experimentation.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"279 ","pages":"Article 121033"},"PeriodicalIF":3.3,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143145566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Self-assembled J-aggregation of AIE-active iridium complexes regulated by hydrogen bond between ligand and solvent","authors":"Zhongming Song ,&nbsp;Chunxuan Pan ,&nbsp;Jialong Wu ,&nbsp;Jiale Yang ,&nbsp;Yuyang Zhang ,&nbsp;Wanwan Yao","doi":"10.1016/j.jlumin.2024.121037","DOIUrl":"10.1016/j.jlumin.2024.121037","url":null,"abstract":"<div><div>How to precisely regulate the aggregates of nonplanar iridium complexes is unclear, and its mechanism is rarely reported, especially in solution. Herein, two iridium complexes (Ir-1 and Ir-2) containing aldehyde-substituents and different auxiliary ligands are reported. In MeOH/H₂O mixed solution, Ir-1 showed aggregation-induced emission (AIE) while Ir-2 showed aggregation-caused quenching. The polarity of MeOH/H₂O solvent and the self-assembled J-aggregation of the complexes are a pair of competitive factors affecting the luminescence intensity. The results show that the self-assembled J-aggregates in Ir-1 solution contain many nanotoroids with smaller size and larger Zeta potential, and that in Ir-2 solution have regular nanocubes with larger size and smaller Zeta potential. The molecular structure and Zeta potential play a significant role in the self-assembled morphology of nanoaggregates. With the addition of D₂O in MeOD/D₂O solvent, the proton signal of aldehyde-groups and ligands of the complexes displayed marked changes in ¹H NMR spectra, indicating that the hydrogen couplings among MeOH/H₂O, aldehyde-groups and ligands can synergistically regulate the self-assembled morphology. Based on the AIE property, we further monitored the promoting effects of aldehyde-groups and ligand on the self-assembly. That is, the addition of MeONa or AcOH caused the luminescence to turn on and off in the complex solution, respectively, suggesting that the aldehyde-groups, the auxiliary ligand and the solvent indeed promote the formation of the self-assembled J-aggregates before the addition of ions to disrupt the solution. This work provides is a rare example for regulating the self-assembled J-aggregates of AIE iridium complex.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"279 ","pages":"Article 121037"},"PeriodicalIF":3.3,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143144763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Deep-red emitting SrNaZrO3:Mn4+ phosphor for greenhouse cultivation LEDs application","authors":"A. Nathan-Abutu ,&nbsp;I. Ahemen ,&nbsp;R.E. Kroon ,&nbsp;L.J.B. Erasmus ,&nbsp;A. Ramirez-DelaCruz ,&nbsp;A. Reyes-Rojas","doi":"10.1016/j.jlumin.2024.121030","DOIUrl":"10.1016/j.jlumin.2024.121030","url":null,"abstract":"<div><div>A sequence of deep red-emitting phosphors, Sr_0.9Na_0.2Zr_1-<em>x</em>O₃:Mn⁴⁺, was synthesized using a modified sol-gel method. The Rietveld analysis indicates that the optical properties are influenced by the coordination environment of the host material. The Zr atom's <span><math><mrow><mn>4</mn><mi>a</mi></mrow></math></span> site symmetry is occupied by Mn²⁺ and Mn⁴⁺ ions in an octahedral coordination, leading to a reduction in <span><math><mrow><msubsup><mi>V</mi><mi>o</mi><mrow><mo>°</mo><mo>°</mo></mrow></msubsup><mtext>.</mtext></mrow></math></span> When excited at 325 nm, photoluminescence (PL) at room temperature (303.15 K) and higher temperatures exhibited strong blue emission at 423 nm and a zero-phonon deep-red emission band at 698 nm. These emissions stem from the ⁴T₁→⁶A₁ and ²E_g → ⁴A_2g transition in the 3d orbit of manganese ions. At higher concentrations, PL intensity was quenched due to energy transfer and exchange interactions between adjacent ions. Temperature-dependent PL measurements showed a quenching in emission intensity with increasing temperature, attributed to the dominance of nonradiative transitions. The Sr_0.9Na_0.2Zr_1-<em>x</em>O₃:_0.01Mn⁴⁺ nanophosphors demonstrated high stability, retaining 50 % of their emission intensity at 422 K, with a thermal relative sensitivity of 2.49 %K⁻¹. The red phosphor achieved CIE color coordinates of (0.707, 0.293), comparable to commercial NTSC-standard red-emitting phosphors, with 93 % color purity. These properties make it suitable for applications in thermal optical sensors and high-power LEDs.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"279 ","pages":"Article 121030"},"PeriodicalIF":3.3,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143144766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Growth and scintillation properties of cadmium thallium codoped sodium iodide crystals","authors":"Zhaopeng Xu ,&nbsp;Zhenxi Zhang ,&nbsp;Zhengze Li ,&nbsp;Zurong Yin ,&nbsp;Bin Zhang ,&nbsp;Dongsheng Tian ,&nbsp;Wusheng Xu ,&nbsp;Yongchao Jia","doi":"10.1016/j.jlumin.2024.121031","DOIUrl":"10.1016/j.jlumin.2024.121031","url":null,"abstract":"<div><div>NaI:Cd(0, 0.01 mol%, 0.05 mol%, 0.10 mol%, 0.20 mol%), Tl(0.18 mol%) crystals were grown using Bridgman method respectively. The crystal structure and composition of the samples were determined by X-ray powder diffraction, inductively coupled plasma emission spectra, and ultraviolet–visible near-infrared transmission spectra. After cutting, polishing, and packaging processes, NaI:Cd,Tl crystals were encapsulated for radiation detection. The scintillation results showed that under the excitation of a¹³⁷Cs radiation source, the energy resolution of NaI:Cd,Tl crystals with Cd doping of 0.01 mol% and 0.05 mol% were less than 7.8 %, and the light output increased 4%–6% compared with that of NaI:Tl crystal. The occupancy mechanism of Cd and Tl elements in NaI crystals was fully discussed using density functional theory. This is conducive to the further application of NaI crystals in the field of high-energy particle detection.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"279 ","pages":"Article 121031"},"PeriodicalIF":3.3,"publicationDate":"2024-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143144767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficient and broadband Na4Al3Ta(PO4)6:Cr3+ phosphors for NIR pc-LED application","authors":"Lipeng Jiang ,&nbsp;Dong Yang ,&nbsp;Mei Yang ,&nbsp;Liangliang Zhang ,&nbsp;Jing Wang ,&nbsp;Junji Zhang ,&nbsp;Guojun Li ,&nbsp;Hongbo Yu ,&nbsp;Wei Si ,&nbsp;Zhongxiang Shi ,&nbsp;Zhihua Zhang ,&nbsp;Yanjing Su","doi":"10.1016/j.jlumin.2024.121032","DOIUrl":"10.1016/j.jlumin.2024.121032","url":null,"abstract":"<div><div>Cr³⁺-activated phosphate-based near-infrared (NIR) luminescent materials offer a unique advantage in terms of preparation conditions. To achieve outstanding material properties, the selection of suitable octahedra is crucial. In this paper, a novel phosphate NIR phosphor, Na₄Al₃Ta(PO₄)₆:Cr³⁺ (NAT:Cr³⁺), is reported by searching for materials containing AlO₆ octahedral. Under the excitation of 456 nm, NAT:Cr³⁺ shows a broadband emission centered at 820 nm with an internal quantum efficiency of 59.7 %. The prepared NIR LED exhibits an output power of 50.9 mW at an input power of 272 mW (2.72 V, 100 mA), demonstrating the potential application in blue LED-based NIR spectroscopy.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"279 ","pages":"Article 121032"},"PeriodicalIF":3.3,"publicationDate":"2024-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143144768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Specific temperature dependence of the spectroscopic properties of Cr2+ ions in Cr2+, Fe2+ co-doped Zn0.7Mn0.3Se crystal","authors":"M.E. Doroshenko ,&nbsp;K.A. Pierpoint ,&nbsp;H. Jelínková ,&nbsp;A. Říha","doi":"10.1016/j.jlumin.2024.121027","DOIUrl":"10.1016/j.jlumin.2024.121027","url":null,"abstract":"<div><div>The paper presents research on the temperature dependence of the spectroscopic properties of chromium ions in Cr²⁺-only doped and Cr²⁺,Fe²⁺ co-doped Zn_0.7Mn_0.3Se solid solution crystals within the temperature range from 77 to 380 K. It is shown that the absorption and luminescence spectra maxima of Cr²⁺ ions in the co-doped sample shift almost linearly towards higher energies compared to Cr²⁺-only doped sample across the entire investigated temperature range. The lifetime of Cr²⁺ ions in the co-doped sample remains practically independent of temperature up to 200 K, while in the Cr²⁺-only doped Zn_0.7Mn_0.3Se crystal it remains temperature-independent up to 250 K. Differences between the temperature dependences of Zn_0.7Mn_0.3Se:Cr²⁺ and Zn_0.7Mn_0.3Se:Cr²⁺,Fe²⁺ samples can be attributed to the influence of Fe²⁺ ions presence, which affect the local vibrations at the position of Cr²⁺ ion.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"279 ","pages":"Article 121027"},"PeriodicalIF":3.3,"publicationDate":"2024-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143144758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tunable periodicity in metal nanogratings for optimized plasmon-enhanced upconversion luminescence in Er3+/Yb3+ co-doped PGG glasses","authors":"J.F.M. dos Santos ,&nbsp;V.B. Marcos ,&nbsp;L.R.P. Kassab ,&nbsp;E. Marega Jr","doi":"10.1016/j.jlumin.2024.121020","DOIUrl":"10.1016/j.jlumin.2024.121020","url":null,"abstract":"<div><div>Surface plasmon polaritons provide a powerful tool for manipulating light at the nanoscale, enabling innovative techniques to control the excitation and emission properties of quantum systems. The confinement of electromagnetic fields in extremely small volumes is essential for advancements in nanophotonics, biosensing, biotechnology, and medical imaging. The unique appeal of metallic nanostructures in plasmonics stems from their fascinating linear and nonlinear optical properties, which are significantly influenced by shape, depth, and periodicity. This study investigates the influence of the geometry and periodicity of gold nanostructures on enhancing upconversion emission from Er³⁺ ions in heavy metal oxide glass co-doped with Er³⁺/Yb³⁺ (PGG: Er³⁺/Yb³⁺). Focused-ion beam (FIB) lithography was used to fabricate circular and square grating nanostructures on a 170 nm gold film deposited on the glass surface, with periodicities ranging from 300 to 1000 nm. These nanostructures were applied to both undoped and Er³⁺/Yb³⁺ co-doped glasses. Upconversion emissions in the green (∼550 nm) and red (∼655 nm) regions were observed for all co-doped samples when excited at λₑₓ = 980 nm, with the strongest emissions appearing in samples with nanostructures of smaller periodicities. We propose an energy transfer mechanism involving Yb³⁺ → Er³⁺, followed by resonant coupling between Er³⁺ and surface plasmon polaritons, which modifies the local field and enhances Er³⁺ emission intensity. These findings, supported by FDTD simulations, show excellent agreement between theoretical and experimental results, highlighting the potential for developing new photonic platforms that leverage the unique emission properties of rare-earth ions.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"279 ","pages":"Article 121020"},"PeriodicalIF":3.3,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143144761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}