Almulhem Najla Khaled
Department of Physics, College of Science, King Faisal University, P.O. Box 400, Al-Ahsa, 31982, Saudi Arabia.
Sci Rep. 2025 Jul 2;15(1):22545. doi: 10.1038/s41598-025-05813-4.
Red emitting materials are critical to a wide range of optoelectronic devices, such as displays, lasers, and light-emitting diodes. Ongoing research efforts are focused on enhancing their emission efficiency and improving their thermal and mechanical stability to meet the demands of advanced device applications. Accordingly, a host glass network with the composition 50PO-20ZnO-20BiO-10BaO (PZBB) was proposed and reinforced with 1 mol% of Ce, Nd, or Ce/Nd ions to produce efficient red emission with high thermal and mechanical stability. Structural changes due to compositional variations were analyzed via X-ray diffraction (XRD), density measurements, and Fourier transform infrared (FTIR) spectroscopy. These analyses revealed a high network tightness with a very slight increase with the introduction of Ce, Nd, or Ce/Nd ions. The produced host PZBB and developed PZBBCe, PZBBNd, or PZBBCe-Nd glasses exhibited high thermal stability and elasticity, confirming their potential for use in optoelectronic device applications. Distinctive absorption bands of Ce and Nd ions were detected across the 200-2500 nm spectral range. Excitation of the PZBBCe, PZBBNd, or PZBBCe-Nd glasses at 308 nm resulted in red emission at 619 & 639 nm, 616 & 677 nm, or 626 nm, respectively. Oscillator strength, Judd-Ofelt, and gain analyses confirm the suitability of PZBBCe, PZBBNd, and PZBBCe-Nd for efficient red emission applications. Gain cross section analysis reveals that PZBBCe-Nd glass supports broadband and dual-ion emission, with potential energy transfer enhancing Nd³⁺-dominated red emission output, while Ce (PZBBCe) and Nd (PZBBNd) singly doped glasses show broad and selective gain, respectively-highlighting their suitability for tunable and narrow-linewidth red emission applications. Overall, the PZBBCe, PZBBNd, or PZBBCe-Nd glasses demonstrated high photoluminescence efficiency in the red region, along with excellent thermal stability and elasticity, making them promising candidates for single- and dual-wavelength optoelectronic applications.
发红光材料对于广泛的光电器件至关重要，如显示器、激光器和发光二极管。目前的研究工作集中在提高其发光效率以及改善其热稳定性和机械稳定性，以满足先进器件应用的需求。因此，提出了一种组成为50PO-20ZnO-20BiO-10BaO（PZBB）的主体玻璃网络，并用1mol%的Ce、Nd或Ce/Nd离子进行增强，以产生具有高热稳定性和机械稳定性的高效红光发射。通过X射线衍射（XRD）、密度测量和傅里叶变换红外（FTIR）光谱分析了由于成分变化引起的结构变化。这些分析表明，随着Ce、Nd或Ce/Nd离子的引入，网络紧密性很高且略有增加。所制备的主体PZBB以及开发的PZBBCe、PZBBNd或PZBBCe-Nd玻璃表现出高热稳定性和弹性，证实了它们在光电器件应用中的潜力。在200-2500nm光谱范围内检测到了Ce和Nd离子的独特吸收带。对PZBBCe、PZBBNd或PZBBCe-Nd玻璃在308nm处进行激发，分别在619&639nm、616&677nm或626nm处产生红光发射。振子强度、贾德-奥费尔特和增益分析证实了PZBBCe、PZBBNd和PZBBCe-Nd适用于高效红光发射应用。增益截面分析表明，PZBBCe-Nd玻璃支持宽带和双离子发射，势能转移增强了以Nd³⁺为主的红光发射输出，而单掺杂Ce（PZBBCe）和Nd（PZBBNd）的玻璃分别显示出宽带和选择性增益——突出了它们适用于可调谐和窄线宽红光发射应用。总体而言，PZBBCe、PZBBNd或PZBBCe-Nd玻璃在红色区域表现出高光致发光效率，以及优异的热稳定性和弹性，使其成为单波长和双波长光电器件应用的有前途的候选材料。
