کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5489618 | 1524361 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Bridgman growth and luminescence properties of dysprosium doped lead potassium niobate crystal
ترجمه فارسی عنوان
خواص بریدگان و خواص لومینسانس کریستال نایوبات پتاسیم سرب شده دیسپروزیم
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
چکیده انگلیسی
Dy-doped lead potassium niobate (Pb2KNb5O15, PKN) single crystal was grown by the modified vertical Bridgman method through spontaneous nucleation. The crystal was brownish, transparent and inclusion free. Five excitation peaks of Dy3+ ions were clearly seen from near ultraviolet region to blue range. It was unique that the excitation peaks in blue range were more intense, especially the one centered at 455Â nm. The emission bands consisted of blue, yellow and red emissions, which were at about 487Â nm, 573Â nm and 662Â nm respectively. The CIE chromaticity diagram of PKN:Dy indicated that white light and yellow light could be emitted when the crystal was excited under near ultraviolet light and blue light, respectively. Thus PKN:Dy crystal is a candidate material whose emitting light could be tunable through changing the excited light wavelength.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Crystal Growth - Volume 468, 15 June 2017, Pages 462-464
Journal: Journal of Crystal Growth - Volume 468, 15 June 2017, Pages 462-464
نویسندگان
Wenbin Liu, Tian Tian, Bobo Yang, Jiayue Xu, Hongde Liu,