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Improved infrared emissions of Er3+-Tm3+ codoped Al2O3 thin films: The role of cross relaxation among rare earth ions

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Er3+-Tm3+ codoped amorphous Al2O 3 thin films were synthesized using pulsed laser deposition and their photoluminescence (PL) properties were investigated. The infrared fluorescence was improved by post-annealing and a broadband emission was obtained. Three cross relaxation channels between Er3+-Tm3+ and Tm-Tm ions were observed for the films with annealing temperature increased from 800 to 850°C, which were further analyzed by deconvoluting the emission spectra using Gauss-fitting method. Our results suggest one possible approach to achieve wideband infrared emissions in the 1.45-1.65 μm wavelength region for the Er3+-Tm3+ codoped systems.

源语言英语
主期刊名INEC 2010 - 2010 3rd International Nanoelectronics Conference, Proceedings
738-739
页数2
DOI
出版状态已出版 - 2010
活动2010 3rd International Nanoelectronics Conference, INEC 2010 - Hongkong, 中国
期限: 3 1月 20108 1月 2010

出版系列

姓名INEC 2010 - 2010 3rd International Nanoelectronics Conference, Proceedings

会议

会议2010 3rd International Nanoelectronics Conference, INEC 2010
国家/地区中国
Hongkong
时期3/01/108/01/10

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