材料科学
发光
吸光度
紫外线
复合数
兴奋剂
透射率
热稳定性
光电子学
辐照
聚二甲基硅氧烷
离子
红外线的
光学
纳米技术
复合材料
化学工程
化学
物理
核物理学
工程类
有机化学
作者
A-Ra Hong,Seungyong Shin,Gumin Kang,Hyungduk Ko,Ho Seong Jang
出处
期刊:Materials
[MDPI AG]
日期:2023-04-18
卷期号:16 (8): 3187-3187
摘要
In this study, we synthesized NaYF4-based downshifting nanophosphors (DSNPs), and fabricated DSNP-polydimethylsiloxane (PDMS) composites. Nd3+ ions were doped into the core and shell to increase absorbance at 800 nm. Yb3+ ions were co-doped into the core to achieve intense near-infrared (NIR) luminescence. To further enhance the NIR luminescence, NaYF4:Nd,Yb/NaYF4:Nd/NaYF4 core/shell/shell (C/S/S) DSNPs were synthesized. The C/S/S DSNPs showed a 3.0-fold enhanced NIR emission at 978 nm compared with core DSNPs under 800 nm NIR light. The synthesized C/S/S DSNPs showed high thermal stability and photostability against the irradiation with ultraviolet light and NIR light. Moreover, for application as luminescent solar concentrators (LSCs), C/S/S DSNPs were incorporated into the PDMS polymer, and the DSNP-PDMS composite containing 0.25 wt% of C/S/S DSNP was fabricated. The DSNP-PDMS composite showed high transparency (average transmittance = 79.4% for the visible spectral range of 380-750 nm). This result demonstrates the applicability of the DSNP-PDMS composite in transparent photovoltaic modules.
科研通智能强力驱动
Strongly Powered by AbleSci AI