کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7840427 | 1505866 | 2018 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Optical and electrical properties of Zn2SiO4:Mn2+ powder electroluminescent device
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Green-emission Zn2SiO4:Mn2+ powder phosphor was applied for powder electroluminescence device through a screen printing method. The EL device consisted of silver nanowires as top electrode, 6 μm-thick Zn2SiO4:Mn2+ phosphor layer, 45 µm -thick BaTiO3 dielectric layer, and metal bottom electrode. The EL device showed the strong 525 nm green emission spectrum. Its luminance-voltage dependence showed the exponential increase, and its luminance-frequency dependence showed the linear increase and then saturation behavior. It is notable that its temperature dependence showed the constant behavior at lower temperature, and then the drastic rising pattern up to Curie temperature of the dielectric layer (~ 120 °C), and then the thermal quenching trend. The maximum luminance was 0.96 cd/m2 where the power consumption was 250 W/m2 at 420 Vp and 400 Hz, and thus the luminous efficiency was 0.012 lm/W.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 196, April 2018, Pages 290-293
Journal: Journal of Luminescence - Volume 196, April 2018, Pages 290-293
نویسندگان
Sunghoon Lee, Byungjoo Jeon, Taewook Kang, Wunho Lee, Afandi Mohammad Malik, Seongwoo Park, Jimin Lim, Boowon Park, Yongseok Jeong, Jongsu kim,