Enhanced Down-Conversion Emission, High-Level Security, and Advanced Latent Fingerprint Visualization in La2Zr2O7:Er3+ Nanophosphor through Surface Modification and Deep Learning Analysis
D. R. Lavanya,
B. R. Radha Krushna,
Krishtappa Manjunatha
et al.
Abstract:This study explores surface modifications on Er 3+ -activated La 2 Zr 2 O 7 nanophosphors (NPs) through solution combustion, revealing a narrower band gap (3.1 eV) in surface-modified NPs. Under UV excitation (378 nm), these nanophosphors emit green light at 550 nm, notably enhanced by oleic acid (OA) modification, offering the potential for white light-emitting diode applications. Due to enhanced energy transfer processes, OA-modified NPs show 98.6% color purity and improved quantum efficiency (68.7%). Additi… Show more
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