Journal
INORGANIC CHEMISTRY FRONTIERS
Volume 9, Issue 24, Pages 6418-6424Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2qi01415g
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- International Science Technology Cooperation Project of Jilin Province Science [627010104]
- Key Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education [20200801038GH]
- Jilin Jianzhu University [JLZHKF022021001]
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In this study, a narrow-band blue phosphor BaZnAl10O17:Eu2+ with excellent emission performance was discovered, which is essential for developing high-performance LCDs. The synthesized phosphor exhibits low thermal quenching behavior, with only minimal loss in emission intensity at high temperatures. The prepared white LED device using this narrow-band blue-emitting phosphor emits high-brightness white light with a wide color gamut, showing its potential application value in white light-emitting diodes.
In the process of developing high-performance LCDs, narrow-band emitting phosphors with excellent performance are indispensable. In this study, a narrow-band blue phosphor BaZnAl10O17:Eu2+ with an emission peak at 433 nm (which can be excited by near-ultraviolet light) and a full width at half maximum of 46 nm was found. The synthesized BaZnAl10O17:Eu2+ phosphor exhibits low thermal quenching behavior. There is only 16.4% loss in emission intensity at 423 K compared to the initial intensity at room temperature. Using the narrow-band emission phosphor BaZnAl10O17:Eu2+ as the blue light source, the prepared white LED device excited using a near-ultraviolet chip emits high-brightness white light (CCT = 4436 K, R-a = 93.96), whose CIE coordinates are (0.3387, 0.3785) and CG can reach 99% of the NTSC standard. The narrow-band blue-emitting BaZnAl10O17:Eu2+ phosphor has potential application value in white light-emitting diodes.
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