Sensitized near-infrared luminescence from erbium ion-associated complex with IR140 dye

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• 作者：Huaishan Wang ; Yu Yang ; ^{yuyang@zju.edu.cn} ; Yuanjing Cui ; Zhiyu Wang ; Guodong Qian ; ^{gdqian@zju.edu.cn}
• 关键词：Lanthanide complex ; Near-infrared emission ; Energy transfer ; IR140 ; Erbium ion ; Sensitized luminescence
• 刊名：Dyes and Pigments
• 出版年：2012
• 期刊代码：31_01437208
• 类别：ms
• 出版时间：October, 2012
• 卷：95
• 期：1
• 页码：69-73
• 文件大小：430 K

摘要

In this study, the near-infrared luminescence emission of erbium ions is enhanced by 6-folds in intensity with an ion-associated erbium complex consisting of an IR140 dye cation. The energy-transfer process from the IR140 dye cation to the erbium ion has been modeled. Near-infrared luminescence of the erbium ion is sensitized intra-molecularly by the IR140 dye cation effectively, although the residual IR140 dye emission is still observed, indicating an incomplete energy transfer between the IR140 dye cation and the erbium ion. The main path of energy-transfer process is through the T₁聽鈫捖?sup>4I_11/2 transition with the operative mechanism to be F枚rster type.