Chinese Optics Letters, 2009, 7 (6): 06524, Published Online: Jun. 8, 2009
Multi-photon upconversion luminescence of Er3+-doped Y2O3 nanocrystals 
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上转换 雪崩 Er3+ 190.7220 Upconversion 160.4236 Nanomaterials 250.5230 Photoluminescence 160.5690 Rare-earth-doped materials
Abstract
Visible upconversion emission intensities are investigated in Er3+-doped Y2O3 nanocrystals. We also find that the upconversion intensity varies nonlinearly with the excitation power with a threshold of 110 mW, which indicates that the green and red emissions would be photon avalanche upconversion when the excitation power exceeds the threshold.
Yunxiang Wang, Yunfeng Bai, Yinglin Song. Multi-photon upconversion luminescence of Er3+-doped Y2O3 nanocrystals[J]. Chinese Optics Letters, 2009, 7(6): 06524.
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