کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1490856 | 992335 | 2010 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Eu3+ doped silica xerogel luminescent layer having antireflection and spectrum modifying properties suitable for solar cell applications
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Eu3+ doped silica xerogel luminescent layer having antireflection and spectrum modifying properties suitable for solar cell applications Eu3+ doped silica xerogel luminescent layer having antireflection and spectrum modifying properties suitable for solar cell applications](/preview/png/1490856.png)
چکیده انگلیسی
A spectrum modifying glassy luminescent layer with antireflection properties has been prepared with Eu3+ ions embedded in silica gel for solar cell applications. Preparation of such matrix by sol-gel process and change in luminescence properties in transforming from amorphous to crystalline phase are described. Luminescent Eu3+ species in amorphous silica matrix show intense red emission at 614 nm by absorbing UV/blue light. Amorphous environment with reduced symmetry for Eu3+ ions results in an unprecedented short decay time of 145 μs for 5D0-7F2 electric dipole transition. In the crystalline monoclinic phase of Eu2O3 nanoparticles, concentration quenching of Eu3+ species reduces luminescence output.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Research Bulletin - Volume 45, Issue 11, November 2010, Pages 1562-1566
Journal: Materials Research Bulletin - Volume 45, Issue 11, November 2010, Pages 1562-1566
نویسندگان
A.F. Khan, Ravishanker Yadav, Sukhvir Singh, V. Dutta, S. Chawla,