کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
737069 893910 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Er3+/Yb3+ codoped Gd2O3 nano-phosphor for optical thermometry
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Er3+/Yb3+ codoped Gd2O3 nano-phosphor for optical thermometry
چکیده انگلیسی

Combustion synthesized Gd2O3: Er3+/Yb3+ nanocrystalline phosphor has been developed and used as a temperature sensor. Frequency upconverted emissions from two thermally coupled excited states 2H11/2 and 4S3/2 of Er3+ centered at 523 and 548 nm in the phosphor pumped by NIR source were recorded in the temperature range 300–900 K. The maximum sensitivity derived from the FIR technique of the green upconversion emission is approximately 0.0039 K−1. The results imply that Er3+/Yb3+ codoped Gd2O3 phosphor can play an important role in high temperature measurements with a better sensitivity.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators A: Physical - Volume 149, Issue 1, 15 January 2009, Pages 16–20
نویسندگان
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